List of Kamen Rider Fourze characters

Kamen Rider Fourze (仮面ライダーフォーゼ, Kamen Raidā Fōze) is a Japanese tokusatsu drama in the Kamen Rider Series, written by Kazuki Nakashima. Transfer student Gentaro Kisaragi transforms into the titular hero Kamen Rider Fourze to battle the constellation-themed monsters called Zodiarts.

The main setting of the series is the fictional Amanogawa High School (天ノ川学園高校, Amanogawa Gakuen Kōkō, AGHS),^{[Note 1]} the school where the main characters attend along with many unique characters.

Kamen Rider Club

The Kamen Rider Club (仮面ライダー部, Kamen Raidā Bu) is a club that Gentaro Kisaragi forms to gain new friends at Amanogawa High School, named after Fourze's predecessors: the various Kamen Riders. The club's members assist Kamen Rider Fourze in his battles against the Zodiarts.^[1][2] In addition, they investigate the urban legends that surround the existence of the past Kamen Riders.^[3][4] The Kamen Rider Club's headquarters are the remains of the Rabbit Hatch (ラビットハッチ, Rabitto Hatchi) lunar base owned by the Outer Space Technology Organization (外宇宙技術開発機構, Gai Uchū Gijutsu Kaihatsu Kikō, OSTO) which developed the Kamen Rider Fourze technology and the Zodiarts Switches. The Rabbit Hatch can be accessed by a Cosmic Energy (コズミックエナジー, Kozumikku Enajī) powered portal found in a locker in an abandoned part of the AGHS campus. In episode 11, the locker that connects the Rabbit Hatch is removed from the abandoned club room, leaving Kengo stranded on the Moon, and it is later seemingly destroyed by the Pyxis Zodiarts. However, it is successfully recovered by Tomoko after she discovers that Mr. Ohsugi took the real locker for himself after believing Yuki's lie about it being Ms. Sonoda's locker while she was a student. They proceed to permanently secure the locker in place with screws to prevent it from ever being easily moved away again. Tomoko even sets up various magical charms around the locker for additional "protection." At the end of the series, the Rabbit Hatch is destroyed in an attack by the Leo Zodiarts and Sagittarius Nova. After Sagittarius Nova's defeat, the Kamen Rider Club reinvents itself in the series epilogue as the Earth-based Space Kamen Rider Club.

The television series' producer Hideaki Tsukuda initially planned on including the various past Kamen Riders into the series to commemorate the Kamen Rider Series' 40th anniversary. However, with Kamen Rider Decade having aired recently, this idea was changed into the appreciation of the previous Kamen Riders in their form as urban legends in Japan.^[5]

Gentaro Kisaragi

Gentaro Kisaragi (如月 弦太朗, Kisaragi Gentarō) is a second-year, later third-year, student at Amanogawa High School, who has a bad-boy image but seeks to make friends with those he meets at the school by forming the Kamen Rider Club. When he meets Kengo Utahoshi, it starts the chain of events leading to him becoming Kamen Rider Fourze (仮面ライダーフォーゼ, Kamen Raidā Fōze).

Gentaro Kisaragi is portrayed by Sota Fukushi (福士 蒼汰, Fukushi Sōta). As a child, Gentaro is portrayed by Tatsuki Ishikawa (石川 樹, Ishikawa Tatsuki).

Kengo Utahoshi

Kengo Utahoshi (歌星 賢吾, Utahoshi Kengo) is a second-year and Gentaro's partner who is also very level-headed and intelligent. However, he has a strange medical condition that causes sharp pains whenever he overexerts himself. A year prior to the series' start, Kengo receives an anonymous letter along with an Astroswitch. The portal connecting to the Rabbit Hatch lunar base, which is all that remains of the OSTO complex on the moon, is opened in a locker in an abandoned club activity room when Kengo just so happens to throw the activated Switch inside. Inside the base, he discovers existence of the Zodiarts and Astroswitches, motivating him to follow through with his father's plans to fight the menace that is to come. Though he originally intends to fight the Zodiarts on his own, his physique is so weak that even manning the Powerdizer exo-suit for extended periods is an extremely difficult task for him. He is forced to give Gentaro the means to become Kamen Rider Fourze and aid the Kamen Rider by providing him with his arsenal as well as acting as Gentaro's tactician. However, Kengo does not acknowledge the existence of the Kamen Rider Club and refuses to be a member of the club. He later changes his mind when he is trapped on the moon due to the mistaken actions of Mr. Ohsugi, and becomes Gentaro's friend and an official member of the club. Though Gentaro's antics still irk him somewhat, he is later seen to be more willing to put up with Gentaro's seemingly stupid plans as he proceeds to create more Astro Switches for him to use.

In his third year, having finished the Cosmic Switch, Kengo learns that Tachibana is the one who gave him the Gate Switch as he begins to learn more of his father from Emoto and Gamou during his trip to Kyoto. Eventually, Kengo learns that Emoto is both the Virgo Zodiarts and Tachibana as he reveals to the boy the full story behind his father's death and that the Horoscopes must be stopped from having all twelve switches. During the incident with the Gemini Zodiarts that followed, Gamou noticed a power emitting from Kengo. From the contents of Emoto's flash drive, Kengo learns of his true nature as the Core Child (コアチャイルド, Koa Chairudo), a physical construct made of Cosmic Energy from within the Core Switch which the Presenters sent to OSTO to prove humanity's worth to contact them. However, only his adopted father Rokuro Utahoshi knew the truth with Kuniteru Emoto, who regretted his role, bringing Kengo to Earth. He uses this newfound knowledge to awaken his powers to negate the 12 Horoscopes Switches, thwarting Gamou's plan to seek the Presenter. However, becoming emotionless to make his next action less painful as he can now use the Fourze Driver, Kengo reveals his true nature to his friends in the Kamen Rider Club that he must leave Earth to present what he have learned to the Presenters' home world. However, Gentaro sees through Kengo's facade and convinces him that he is still a person while promising him that they would meet again. Unfortunately, refusing to left him leave the Milky Way, Kengo's departure is interfered by Gamou assuming his Sagittarius Nova form to knock the youth down and destroy the Core Switch, causing Kengo's body to dissolve into particles of light. However, on the verge of death, Gamou uses the Aquarius Switch's power to repair the Core Switch and bring Kengo back to life.

Kengo is named after Kamen Rider 1, also known as Takeshi Hongo (本郷 猛, Hongō Takeshi); うたほしけんご（歌星賢吾） is an anagram of ほんごうたけし（本郷猛）.^[6]

Kengo Utahoshi is portrayed by Ryuki Takahashi (高橋 龍輝, Takahashi Ryūki).

Yuki Jojima

Yuki Jojima (城島 ユウキ, Jōjima Yūki) is a second-year student and is Gentaro's childhood friend with a bright and cheerful personality who cares deeply for her friends. As a child, Yuki heard a voice from the stars which influenced her with the desire to become an astronaut. Since then, Yuki became what she refers to as a "space otaku", called a "geek" by everyone else, with her dream motivating her reasons for attending Amanogawa High and occasionally going to the JAXA building after school. She is a friend of Kengo's, meeting him on the day he found the Rabbit Hatch out of her interest to know his father better, and has since supported him in his activities in preparation for the Zodiarts' appearance. She plays a role in Gentaro becoming Fourze and allows Kengo to let Gentaro help them, becoming one of the founding members of the Kamen Rider Club.

During her third-year, Yuki became the Kamen Rider Club's new president after Miu graduated and is capable of leading the club with her ingenuity though Miu's return as the club's chairwoman makes Yuki a figurehead leader. Yuki also has a plushy satellite toy she affectionately calls "Hayabusa", which seems have a different facial expressions depending on the situation. During the incident with the Gemini Zodiarts, an embodiment of her darkness who ruins her life, Yuki finds herself ceasing to be before Gentaro saves her.

Yuki is named after Riderman, also known as Joji Yuki (結城 丈二, Yūki Jōji).^[6]

Yuki Jojima is portrayed by Fumika Shimizu (清水 富美加, Shimizu Fumika). As a child, Yuki is portrayed by Kanon Kasuga (春日 香音, Kasuga Kanon).

Miu Kazashiro

Miu Kazashiro (風城 美羽, Kazashiro Miu) is a cocky third-year, later graduate, student who comes from an upper-class family. She is also the head cheerleader and has been elected the "Queen of the School" (学園の女王, Gakuen no Joō) for having won the yearly Queen Festival (クイーンフェス, Kuīn Fesu) two years in a row putting a lot of effort and hard work into getting where she is now, and has a large number of fans. Among her philosophies as queen, Miu believes that she needs to know everything that occurs within the school grounds. Though she is well loved by many in school, Miu has a sense of superiority over the student body and sees those who are infatuated with her to be nothing but leeches, as to her, they only leech onto her for their own failure to shine. She takes an immediate dislike to Gentaro and calls him trash when she first meets him. This mentality is later used against her by her sidekick Tamae Sakuma during this year's Queen Festival, as Tamae had secretly recorded Miu destroying her adoring public's gifts and have the video played in front of the entire student body. Humbled, and with Gentaro's help, Miu is reminded of her passion and returns to competing in the Festival despite the odds against her. Soon after, she accepts Gentaro's hand in friendship and manages to win the Queen Festival yet again and keep her title, as well as the love of the student body in general with a powerful speech about working hard to shine with one's own power. Soon after, as her way to let Gentaro off the hook on the bet they made prior to the contest, Miu has him bring her to the Rabbit Hatch. Miu is made a member of the Kamen Rider Club, much to Yuki's chagrin when Miu announces that she is the club president. The position fits her well as she is a born leader and capable of being level-headed under crisis, even more so than Kengo himself, shown where she is capable of keeping cool and speak confidently even when a Zodiarts is terrorizing the place around her, and when she stops Yuki from revealing details about their club to save Kengo when he got trapped on the moon, never forgetting that their primary role is to stop the Zodiarts. These traits make her the team's de facto leader, as she is constantly seen mobilizing the team and help directing strategies and actions alongside Kengo. While she keeps her elitist attitude (used more towards a comedic effect), she also becomes genuinely more caring towards others, especially with her fellow Kamen Rider Club Members and would go to lengths for their sake, even if it means doing field work and getting herself really dirty. Miu has a strange habit of saying "oops" when making a mistake or if something strange happens.

Realizing that she and Shun would soon be graduating, she contemplates her activities in the Kamen Rider Club and chooses Yuki to be the next president when she is gone. After seeing the work she has put into the group when finding out about the Coma Zodiarts, she realizes not only has she made the right choice, but that she would soon leave the club seeing how everyone can handle themselves without her. Upsetting herself over this, she directs her fury at Shun who desperately attempts to ask her out to prom when she wants to ask Gentaro, instead. She gets her wish to dance with Gentaro due to Shun's insistence and realizes that though she is leaving the high school, she will always be a part of the Kamen Rider Club. After graduating, she finds out that her college is close to AGHS so she can continue her Kamen Rider Club activities as chairwoman. This effectively returns the leadership of the club to her, and thus rendering Yuki's appointment moot and the "Club President" title rendered empty. In the end, Shun proposes to her but is soon enamored by a ring from a mysterious man.

Miu is named after Kamen Rider V3, also known as Shiro Kazami (風見 志郎, Kazami Shirō); かざしろみう（風城美羽） is an anagram of かざみしろう（風見志郎）.^[6]

Miu Kazashiro is portrayed by Rikako Sakata (坂田 梨香子, Sakata Rikako).

JK

Kaizo Jingu (神宮 海蔵, Jingū Kaizō), known better by his nickname JK (JK（ジェイク）, Jeiku, pronounced as "Jake"), is student who has a gaudy appearance and acts as an information broker to other students, but he only trades secrets for favors. However, he is known to be a coward as he constantly flees from difficult situations. Prior to attending AGHS, JK had dreams of becoming a rock musician like his father since he was a child and formed a rock band with Tojiro Goto called Gene Goto. However, while in middle school, JK was forced to give up on his dream upon learning that he lacks the vocal talent for it. During his first year in AGHS, JK learned of Gentaro's identity as Kamen Rider Fourze, agreeing to keep his mouth shut about it prior to talking Gentaro into protecting him from Fumihiro Nitta, a student he wronged by tricking him into being his bodyguard. Seeing the power of the Astroswitches in action personally, JK arranges the theft of the Elek Switch from Gentaro to teach him a lesson in trusting people, as well as to have him stick around in case Nitta comes for him again. However, once found out, JK is held captive by Nitta who allows him to call for help on the promise to release him if even one of his associates came to his aid. Though none came, Gentaro arrived to save JK despite his betrayal. The experience Gentaro learned from befriending someone like JK, to both the pros and cons of a person, allows him to assume Elek States. After JK learns what friendship really means, he is made a member of the Kamen Rider Club and uses his connections to aid the group in identifying Zodiarts' Switchers and their targets through his connections.When Miu and Shun graduate, JK is named the new pilot of the Powerdizer through process of elimination (Kengo and Ryusei are tech support and Yuki and Tomoko are too weak to use it). While he proves to have a talent in piloting the heavy machine, his lack of experience and lasting stamina prevents him from piloting effectively. Luckily, as his college is near AGHS, Shun returns to the club to continue his role as the Powerdizer pilot, but mostly coaches JK in his new duties. JK is also known to be a skilled breakdancer, which is especially noted during the fight with the Pegasus Zodiarts when he successfully uses his moves to dodge a powerful kick. He also incorporates that same style whenever he pilots the Powerdizer.

During his second year in AGHS, JK creates the alias of DJ Gene to set up an internet radio show called DJ Gene Milky Night Carnival as a means to live out his dream of becoming a rock star, but the show becomes more popular than he expects. He is also reunited with middle school friend Tojiro Goto, but becomes conflicted between his loyalties to his old friend who is one of the Horoscopes and to his new friends in the Kamen Rider Club. Goto urges JK to continue with the show, using his sonic powers as the Capricorn Zodiarts to make them even more popular since it makes their musical skills better than before. JK's internal conflicts continue when he discovers the Capricorn Zodiarts' powers are brainwashing everyone in the school, but he does not want to be like his father who gave up on his dreams, so he keeps the show running and leaves the Kamen Rider Club due to his new-found understanding on the frailty of friendship and wants to live for his future instead. However, after seeing Gentaro stopping the Capricorn Zodiarts's music with his father's song, and being forgiven for his role in his former friend's scheme, JK ends his broadcast and dream with the intent to cherish the friendships he has with the Kamen Rider Club.

JK is named after Kamen Rider X, also known as Keisuke Jin (神 敬介, Jin Keisuke); "JK" are Jin's initials.^[6] JK's real name is also a play on Kamen Rider X being a "Kaizorg" (カイゾーグ, Kaizōgu).

JK is portrayed by Shion Tsuchiya (土屋 シオン, Tsuchiya Shion). As a child, JK is portrayed by Wataru Sekine (関根 航, Sekine Wataru).

Shun Daimonji

Shun Daimonji (大文字 隼, Daimonji Shun) is a third-year, later graduate, student who is captain of the American Football team, thus treated like a king by the student body. He is a stereotypical jock whose life has been planned out by his father, raised to believe that those under him are trash and how to play them to suit his needs. As he is consciously compelled not to shame his father and their family name, Shun distances himself from anything that he thinks could destroy his reputation, as he does with Miu when she fell from grace during the Queen Festival. Though he tries to reconcile with her, Shun is surprised when Miu breaks up with him and starts hanging out with Gentaro and his friends. He later gets forced into Mr. Satake's detention class for attacking one of his teammates who insulted his leadership abilities. Though he resolves to pass so he can return to his club activities, Shun's attempts to keep the Kamen Rider Club members in the class eventually result with him being labelled as a delinquent by Mr. Satake as well. Gentaro's earnest effort in wanting to know him better eventually gets through to Shun, and he reveals in tears that he only wants to live up to his father's expectations, without being truly happy with who he is and what he has achieved. Furthermore, his holier-than-thou attitude only makes him an outcast of sorts and he confesses his envy towards the Kamen Rider Club members, where the members stick together and have real fun. His story moved Gentaro to tears to his surprise. Although Gentaro respects his wish to live up to his father's expectations, he tells him that he should also do what he truly wants to. This compels Shun to accept Gentaro as a friend and later battle alongside Gentaro, joining the Kamen Rider Club and providing his athletic prowess as the Powerdizer's official pilot. He is proven to be very adept at manning the machine as he even can do acrobatics with it without suffering any detrimental side effects. He is seen to be more humble and friendly after befriending Gentaro, willingly help the club with anything. He is also very uncomfortable confronting his old attitude, especially when others are following his old example, and attempts to atone for his previous ways like straightening out his teammates when they are acting like he used to, and out of guilt for pushing Miura over the edge, tries to bring Miura back to school by visiting him and apologize to him personally over and over again, even though his apologies always fall on deaf ears.

When Shun and Miu are graduating, Shun insists on asking Miu to prom in very outlandish ways revealing that he has true feelings for her. However, he finds out the Miu wants to go to prom with Gentaro and becomes upset over this, even throwing a punch at Gentaro who went out of his way to get Miu to go with Shun to prom. While dancing with Miu, he realizes that the Kamen Rider Club are fighting to protect their prom and finds it hard to sit with that fact and just enjoy themselves, prompting him and Miu to leave the prom early to assist them. Afterwards, he insists that Gentaro dance with Miu like she wanted to, as Shun wants to send her off happy. After graduation, Shun finds out that both his and Miu's college is near AGHS, allowing both of them to continue their duties in the Kamen Rider Club, thus graduating only from high school and not the club. Eventually, after the defeat of the Horoscopes, Shun attempts to ask Miu for her hand in marriage before the moment is ruined by the appearance of a mysterious young man.

Shun is named after Kamen Rider 2, also known as Hayato Ichimonji (一文字 隼人, Ichimonji Hayato); by combining the kanji 一 and 人 in Ichimonji's name, you get the kanji 大 in Daimonji's name.^[6]

Shun Daimonji is portrayed by Justin Tomimori (冨森 ジャスティン, Tomimori Jasutin).

Tomoko Nozama

Tomoko Nozama (野座間 友子, Nozama Tomoko) is a first-year, later second-year, goth girl who works at the Witches' Sacrifice occult store after school. Always seen with an iPad, Tomoko has a weird laugh and fixates over weird things, going so far as to delete the school's database because her bow is crooked when photos of her doing school activities were taken, "Earning" her a place in Mr. Satake's detention class. Tomoko also has an acute sixth sense in sensing things others cannot, along with moving around undetected and giving people chills whenever she is around. Her unorthodox thinking always allows her to notice things that most people usually overlook. She is also capable of detecting energies of the Astroswitches. She is revealed to have knowledge of the urban legends of other Kamen Riders, playing an indirect role in the creation of the Kamen Rider Club. Since watching Yuki perform at the Queen Festival, seeing a kindred spirit in her, Tomoko has begun to stalk her. Before she joins the Kamen Rider Club, she is one of the few students to be aware of the existence of the Rabbit Hatch, but she does not know at the time that it is located on the Moon where she wishes to live on. Eventually, Tomoko joins a group of other goth students in a witches' coven called the Lunar Witches as its leader Ritsuko Usaka offers to make her dream of leaving the Earth to live on the Moon a reality. But she is devastated when she finds out that the Lunar Witches are shams, which leads Tomoko to be approached by the Scorpion Zodiarts to receive a Zodiarts Switch. Believing she has nowhere to go except the Moon, and that her Zodiarts Switch may fulfill her dreams and become a new person, Gentaro takes her to the Rabbit Hatch to show her what the moon really looks like. Although she is disappointed there is nothing but cold space, Tomoko is glad that she has finally gone to the Moon while finding comfort and acceptance in the Kamen Rider Club members, especially Gentaro as he tells her she is just fine as she currently is. This leads to her renouncing her membership with the Lunar Witches and accepting Gentaro's hand in friendship while later, much to Kengo's chagrin, throws her yet-to-be activated Zodiarts Switch into the river near school. She becomes uncomfortable with occults, something unusual for a goth, after her experience with the Luna Witches. As a Kamen Rider Club member, Tomoko mainly uses her sixth sense to help out with investigations and detect things the others overlook. She starts to keep notes on Ryusei as she realizes strange things happen to him. Ryusei loses her trust at first for betraying the club and she tells him that he is not a true Kamen Rider. At the end, she sees Ryusei redeeming himself without the power of the Meteor Driver. Once the Aries Zodiarts is defeated, Ryusei regains her trust. At the end of Episode 40, Tomoko is banished to the Dark Nebula after she discovers that the Virgo Zodiarts is actually Professor Kuniteru Emoto but is soon brought back after revealing himself to the other club members.

Tomoko is named after Kamen Rider Amazon, also known as Amazon (アマゾン); "Nozama" is "Amazon" backwards.^[6]

Tomoko Nozama is portrayed by Shiho (志保).

Ryusei Sakuta

Ryusei Sakuta (朔田 流星, Sakuta Ryūsei) is a mysterious young man who transfers to AGHS in Gentaro's class. He is initially part of the Anti-Zodiarts Union (反ゾディアーツ同盟, Han Zodiātsu Dōmei) and fights as Kamen Rider Meteor (仮面ライダーメテオ, Kamen Raidā Meteo). He originally attended Subaruboshi High School (昴星高校, Subaruboshi Kōkō),^{[Note 2]} transferring to AGHS and weaseling his way into the Kamen Rider Club in order to track down the yet to manifest Aries Zodiarts for his personal agenda. After the Aries Zodiarts makes his appearance and his identity as Kamen Rider Meteor is revealed to the members of the Kamen Rider Club, Ryusei properly joins the Kamen Rider Club as an official member and one of Gentaro's friends.

Ryusei Sakuta is portrayed by Ryo Yoshizawa (吉沢 亮, Yoshizawa Ryō).

Chuta Ohsugi

Chuta Ohsugi (大杉 忠太, Ōsugi Chūta) is the second year geography teacher, and later third year homeroom teacher, with a habit of punctuating his sentences with a snap of the suspenders he always wears. He is a middle-aged man who has bad looks and a bad personality who is disliked by many students, as it is part of his belief that teachers should not be friends with students, but he does take his role as a teacher very seriously. He is infatuated with Ms. Sonoda, even though she does not have any interest in him and would always walk away when he is about to confess his feelings. Mr. Ohsugi also gets into arguments with Gentaro over him not wearing the school uniform, among many other things, and has since listed him as the top problematic student in the school. Ryusei also gets on Mr. Ohsugi's bad side by pointing out that Gentaro is within his rights in terms of the dress code not being strictly mandatory. He also happens to be very superstitious, reading the weekly horoscope (he is a Scorpio) and believing in curses. He likes to put up a strong front, only to shirk and cower later when things go haywire. He is also shown to be jealous of Hayami, as he is almost a complete opposite of what he is and Hayami is very close to Ms. Sonoda. He is very obviously devastated in Ms. Sonoda's "absence due to illness" for extended periods, even more so when he heard that she quit her job altogether later, blaming Gentaro and the others for her health trouble to the point of arranging it that he would be their homeroom teacher in their third year, as well as putting those three he deem problematic in his class in the front seats so to keep an eye on them. His obsession with catching their misdeeds eventually leads him to discover the Rabbit Hatch and the existence of the Kamen Rider Club. He finds it absurd that not only are the three students he deems problematic are in the technically illegal club, second year students and even star alumni are in too. Even after hearing their reasons to have the club as such, Mr. Ohsugi still intends to disband the club as it has failed in following the rules of being approved by a faculty member, eventually escaping the Rabbit Hatch with a confiscated Net Switch to hand over to Principal Hayami. However, upon learning from Ran that some of the faculty are playing a role in the monster attacks, and after seeing the Kamen Rider Club in action when they save him from the Musca Zodiarts, Mr. Ohsugi gives the club his approval to be a legitimate school club and becomes the group's academic adviser, stating that it his duty as a teacher to look out for his students and gaining the respect from the club members, and reconciling with the three he deems to be nothing but trouble. JK later tells Mr. Ohsugi everything about the identity of the Horoscopes and he is surprised to learn that Ms. Sonoda was the Scorpion Zodiarts. When the Leo Zodiarts tries to destroy the Rabbit Hatch, Mr. Ohsugi jumps into the fray and tries to stop the Zodiarts from harming his students, showing that he has become very close to the Kamen Rider Club.

Chuta Ohsugi is portrayed by Takushi Tanaka (田中 卓志, Tanaka Takushi) of the owarai duo Ungirls.

Miyoko Ohki

Miyoko Ohki (大木 美代子, Ōki Miyoko), nicknamed Miyoppe (ミヨッペ), is a student at Amanogawa High after 5 years after the end of the original series. She is the new (and only) member of the Space Kamen Rider Club at this time. She appears in Kamen Rider × Kamen Rider Wizard & Fourze: Movie War Ultimatum.

Miyoko is an homage to Satoko Ohki (大木 サトコ, Ōki Satoko), the heroine of the Inazuman manga.

Miyoko Ohki is portrayed by Rika Adachi (足立 梨花, Adachi Rika).

Other AGHS students

The students of Amanogawa High School are often willingly or unwittingly involved in the actions of the Zodiarts (ゾディアーツ, Zodiātsu), the constellation-themed monstrosities that some of the students are able to transform into by means of the Zodiarts Switches' Cosmic Energy gathering abilities. The students are given the Zodiarts Switches because Mituaki Gamou sees their negative emotions as a means to further the Switches' ability to evolve so the Horoscopes may complete their ranks.

Toshiya Miura

Toshiya Miura (三浦 俊也, Miura Toshiya) is a second-year student who is a member of the AGHS football team, but due to how Shun's father is forcing Shun to make unpopular decisions for the team, Toshiya is demoted to equipment manager. To enact his revenge, he acquires the means to become the Orion Zodiarts to attack Shun for ruining his football chances. Kamen Rider Fourze manages to defeat the Orion Zodiarts, and Toshiya is told that he need not have resorted to such means. Months later, Toshiya has not returned to school and the Kamen Rider Club goes to find him where he tells them that he will not be returning to AGHS, despite the requests of his girlfriend Mari. It is later revealed that the reason why he doesn't want to return to school is that he became addicted to Switches, and would start looking for one if he is around school. He became afraid of himself and thus decided to shut himself in. In this time when the Kamen Rider Club go look for him, he is also sought after by the Scorpion Zodiarts so he may become the Orion Zodiarts once again. When he is reminded of how he was before he was given the Zodiarts Switch and wanting to return to his old self, Toshiya manages to reject the Scorpion Zodiarts's temptation on his own without any external interference. He then befriends Gentaro and returns to AGHS, although rather than join the Kamen Rider Club, he joins the photography club to be with Mari.

Toshiya Miura is portrayed by Masanori Mizuno (水野 真典, Mizuno Masanori).

Tamae Sakuma

Tamae Sakuma (佐久間 珠恵, Sakuma Tamae) is a third-year student who is Miu's sidekick and fellow member in the cheerleading squad. She feigns her friendship with Miu, as she secretly resents losing to her every year in the Queen Festival, and uses the opportunity given to her by the Scorpion Zodiarts to enact her revenge as the Chameleon Zodiarts. When she is defeated by Kamen Rider Fourze, Miu encourages her to work harder the following year.

Tamae Sakuma is portrayed by Maria Yoshikawa (吉川 まりあ, Yoshikawa Maria).

Jun Shigeno

Jun Shigeno (繁野 ジュン, Shigeno Jun) is a second-year student who is Miu's sidekick and fellow member in the cheerleading squad. She comes off as an airhead with a hearty appetite, but is left in charge of the cheerleaders by Miu since there was are no other substitutes for the moment, while Miu decides to spend more time in her role as the Kamen Rider Club President. As Miu's term is about to end, she comments on how much the squad improved on Jun's watch.

Jun Shigeno is portrayed by Arisa Fujisaki (藤嵜 亜莉沙, Fujisaki Arisa).

Reiko Hirota

Reiko Hirota (広田 玲子, Hirota Reiko) is a first-year student that Gentaro tries to convince to enter the Queen Festival to unseat Miu from her yearly winning streak. However, an attack by the Chameleon Zodiarts scares her enough to back out of the contest. Reiko later becomes Shun's girlfriend after Miu dumps him. Eventually, she dumps Shun after seeing him with Gentaro and the others working as groundskeepers during their detention. She later ends up indirectly involved in the incident with Hiroki Makise as one of the girls involuntarily dragged into a bus about to drive off a bridge by the Pyxis Zodiarts. She and the other girls would later be saved by Shun in the Powerdizer and dealt with Makise personally after the Pyxis Zodiarts is defeated.

Reiko Hirota is portrayed by Yurika Tachibana (橘 ゆりか, Tachibana Yurika).

Chosuke Ban

Chosuke Ban (番 長介, Ban Chōsuke) is a year 3 student who leads a group of other delinquent students who hang out behind the school. He and his gang pick fights with Gentaro whenever he is looking for information, and they are single-handedly beaten by Gentaro each time. He is seen in the seventh episode, having given JK a tip on a mysterious student with other delinquents in a new hang out. In the Net Movies, Chosuke is interviewed by Hayami as a potential final Horoscopes member. Though Chosuke would be an ideal candidate due to his history with Gentaro, his constellation is Pictor.

Chosuke Ban is portrayed by Takahiro Kuroishi (黒石 高大, Kuroishi Takahiro).

Mari Yamamoto

Mari Yamamoto (山本 麻里, Yamamoto Mari) is a student who is Toshiya Miura's girlfriend and a member of the AGHS photography club. She seeks out Shun's assistance into getting Toshiya into attending school again.

Mari Yamamoto is portrayed by Natsumi Ishibashi (石橋 菜津美, Ishibashi Natsumi).

Junta Abe

Junta Abe (阿部 純太, Abe Junta) is a second-year student who is the president of the AGHS glee club.

Junta Abe is portrayed by Tokimasa Tanabe (田辺 季正, Tanabe Tokimasa).

Taira Katagiri

Taira Katagiri (片桐 平, Katagiri Taira) is an overweight first-year student who is a member of the AGHS glee club. In the Net Movies, Taira is interviewed by Hayami as a potential final Horoscopes member. However, his constellation is Pisces Austrinus.

Taira Katagiri is portrayed by Yosuke Nishi (西 洋亮, Nishi Yōsuke).

Ibuki Watanabe

Ibuki Watanabe (渡辺 伊吹, Watanabe Ibuki) is a student in Gentaro, Yuki, and Kengo's class who is a member of the AGHS glee club.

Ibuki Watanabe is portrayed by Ibuki Yoshida (吉田 伊吹, Yoshida Ibuki).

Rumi Egawa

Rumi Egawa (江川 留美, Egawa Rumi) is a second-year student who is a member of the AGHS track and field club. She has inferiority complex regarding her above average height and size for girls, which resulted in her falling into a slump both in her enthusiasm as well as performance as a member of the team. Kengo attempts to help her out by giving her advise in improving her performance, but the club captain, Jin Nomoto berated both her, for taking advise from outsiders, and Kengo, for meddling in the club's affairs. She got Kengo joined the club to be her personal adviser for the coming competition to circumvent Nomoto's reasoning, but that only angers Nomoto further as he sees that as an insult to him. She eventually won the competition and gives her plaque to Kengo as a gift.

Rumi Egawa is portrayed by Youki Kato (加藤 侑紀, Katō Yūki).

Misa Toriizaki

Misa Toriizaki (鳥居崎 ミサ, Toriizaki Misa) is member of AGHS's ballet club who leads the Ugly Duckling Society (醜いアヒルの子の会, Minikui Ahiru-no-ko no Kai), a club whose members follow Cycnus after being saved by him. As the head of the Society, she grades people in a way similar to how Cycnus believes people are worthy of his presence. The Kamen Rider Club initially believes that she is the Switcher for the Cygnus Zodiarts before learning that the Zodiarts is an alternate personality of Norio Eguchi. However, being faithful to Cycnus, Misa forces Eguchi to transform before seeing the Cygnus Zodiarts's true colors and disbanding the group soon after.

Misa Toriizaki is portrayed by Kaya Asano (浅野 かや, Asano Kaya).

Yukina Takamura

Yukina Takamura (高村 優希奈, Takamura Yukina) is a third-year student who is in the same class as Gentaro, Yuki, Kengo, and Ryusei. Having watched Gentaro for quite some time to know that he is Kamen Rider Fourze, she genuinely feels sorry for him, believing that all of the fighting he is doing is taking away from his chance to live a normal life as a teenager. It is not made clear however, if she actually has feelings for Gentaro, or just wants like Gentaro to be happy and normal as a friend. Accompanying them on the class trip to Kyoto, Yukina overzealously does everything to become Gentaro's girlfriend to ensure Gentaro is having a good time, while holding Yuki's Hayabusa plush doll hostage to force her to cooperate. After Gentaro reveals his identity as Kamen Rider Fourze to her, she reveals that she had known the fact that he is a Kamen Rider all along and attempts to convince him to quit by stealing the Fourze Driver, but she is persuaded afterwards by both Gentaro and Yuki to return the Driver, when the Libra Zodiarts attacks the last altar keeping The Hole above Kyoto from collapsing. She comes to understand that to Gentaro, going lengths to help any friend in trouble is completely normal, with or without Kamen Rider Fourze's powers. In exchange for returning the Fourze Driver, she asks that they take a picture with their most beautiful smiles together before they go back to school.

Yukina Takamura is portrayed by Mika Akizuki (秋月 三佳, Akizuki Mika).

Sayaka Mibu

Sayaka Mibu (壬生 彩加, Mibu Sayaka) is a third year student and AGHS's student council president. She and Sugiura never saw eye to eye and have always been butting heads over a variety of matters concerning the student body, chief among them a quartet of reckless students abusing the school's policies of allowing freedom. She insists on implementing measures to keep students in check while Sugiura insists on allowing students maximum freedom. Confronting Kamou, Kiyama, Kito, and Umezawa about it when they went too far, Sayaka fell down the stairs and is hospitalized as Sugiura assumes her duties. Though she thinks Sugiura has finally come to his senses and accepts her views, Sayaka learns that Sugiura actually has feelings for her and instead of adopting her views, Sugiura is only doing it for her sake. She agrees to help Gentaro reach Sugiura to stop the madness in school. Though she assures him that she will resume her duties in a matter of weeks, Sayaka is horrified to find Sugiura sucked into the Dark Nebula.

Sayaka Mibu is portrayed by Yuka Eda (江田 結香, Eda Yuka).

Shoko Oki

Shoko Oki (沖 荘子, Oki Shōko) is the head of the student council's decency committee. She has feelings for Sugiura and though knowing that Sugiura has feelings for Sayaka, she follows his lead faithfully and dutifully carries out Sugiura's orders despite the bizarreness, thinking that Sugiura will notice her feelings for him if she keeps doing what he tells her to. She eventually breaks down when Sugiura disregards her loyalty all these while altogether and chooses to punish her for her inability to capture Tomoko instead. She indirectly help to bring an end to all the madness happening in the school by telling Gentaro all she knows about Sugiura and Sayaka.

Shoko Oki is portrayed by Seira Maeda (前田 聖来, Maeda Seira).

Keisuke Yanami

Keisuke Yanami (矢波 敬介, Yanami Keisuke) is a member of the student council.

Keisuke Yanami is portrayed by Ryotaro Sakaguchi (坂口 涼太郎, Sakaguchi Ryōtaro).

Others

Takato Daimonji

Takato Daimonji (大文字 高人, Daimonji Takato) is Shun's father who made his son's decisions so Shun could meet his father's expectations. He presents a statue in honor of the AGHS football team's win at the regional tournament.

Takato Daimonji is portrayed by Ryo Kamon (加門 良, Kamon Ryō).

Nadeshiko Misaki

Nadeshiko Misaki (美咲 撫子, Misaki Nadeshiko) is a transfer student at AGHS whom Gentaro falls in love with. However Nadeshiko was actually the SOLU, short for "Seeds Of Life from the Universe", from the meteorites which copied a human form. By seeing Gentaro transform into Kamen Rider Fourze, she copies it to make a Nadeshiko Driver (なでしこドライバー, Nadeshiko Doraibā) which enables her to transform into Kamen Rider Nadeshiko (仮面ライダーなでしこ, Kamen Raidā Nadeshiko). Her belt is also compatible with the Astro Switches, but can only use Astroswitches for the arms and lacks the use of Limit Break. It contains copies of the Rocket Switch and Radar Switch. She also creates the Mega Burgermeal Foodroid and a copy of the Camera Switch. She is later taken by Suddendath and turned into the SOLU Switch for Kannagi to transform into the Super Gingaoh. She creates the S-Rocket Switch for Kamen Rider Fourze to use, which she leaves Gentaro before being captured. Kamen Rider Nadeshiko's Rider Kick is the Nadeshiko Rocket Kick (なでしこロケットキック, Nadeshiko Roketto Kikku), which is based on the heel kick performed by Homare Sawa during the 2011 FIFA Women's World Cup. She can also perform the Double Rider Rocket Punch (ダブルライダーロケットパンチ, Daburu Raidā Roketto Panchi) with Kamen Rider Fourze.

During the events of Kamen Rider × Kamen Rider Wizard & Fourze: Movie War Ultimatum, Nadeshiko was reunited with Gentaro through the help of XVⅡ as she participate, along with other Kamen Riders, in the final battle against the Akumaizer before she gave the Nadeshiko Switch to Gentaro in order to become Fourze Meteor Nadeshiko Fusion States.

Nadeshiko was originally meant to be named after Electro-Wave Human Tackle, also known as Yuriko Misaki (岬 ユリコ, Misaki Yuriko), Kamen Rider Stronger's partner, with Nadeshiko's surname written in different kanji.

Nadeshiko Misaki is portrayed by Erina Mano (真野 恵里菜, Mano Erina) of Hello! Project.^[7]

Jiro Iseki

Jiro Iseki (井石 二郎, Iseki Jirō) is one of Ryusei's friends from Subaruboshi High School who somehow acquired a Zodiarts Switch because he wanted to be stronger than Ryusei. However, the Switch is incompatible with him and thus backfired, which caused a massive explosion that severely injured Jiro, rendering him in a coma ever since. The Zodiarts Switch stayed in a turned-on state since then and as only he himself can turn the switch off, the lingering effects in him rendering him unable to helped by modern medicine. This event would lead to Ryusei becoming Kamen Rider Meteor to find Aries Zodiarts under Tachibana's orders. Though he is not sure what the Horoscopes can do, but he knows that the said Zodiarts can save Jiro. When the Aries Zodiarts finally makes its appearance, Ryusei betrays both Tachibana and the Kamen Rider Club in order to fulfill his wish to save Jiro. The Aries Zodiarts honors his deal with Ryusei and awakens Jiro, with Ryusei finally being able to get him to turn the Zodiarts Switch off. The joy is short-lived however, as Jiro is still critically injured despite being awakened and relapses, due to losing the will to live after Ryusei tells him the lengths he went to save him. After being inspired by Kengo's method in reviving Gentaro, Ryusei visits and talks to Jiro to helps him out of his physical coma, and Ryusei is finally able to help into a speedy recovery.

Jiro Iseki is portrayed by Ryusei Yokohama (横浜 流星, Yokohama Ryūsei).

Goro Kisaragi

Goro Kisaragi (如月 吾郎, Kisaragi Gorō) is Gentaro's grandfather who looks after Gentaro since his parents died in an accident several years ago. He owns a local motorcycle shop called Kisaragi Motorcycle Engineering (如月モータース, Kisaragi Mōtāsu).

Goro Kisaragi is portrayed by Nobuo Yana (八名 信夫, Yana Nobuo).

Mei Shirakawa

Mei Shirakawa (白川 芽以, Shirakawa Mei) is a student at Subaruboshi High School who is friends with Ryusei before he transfers to Amanogawa High School, though she wants to be his girlfriend.

Mei Shirakawa is portrayed by Runa Natsui (夏居 瑠奈, Natsui Runa).

Azusa Seta

Azusa Seta (瀬田 あずさ, Seta Azusa) is the physical education teacher at Subaruboshi High, forced into Yamada's play by becoming the English teacher. However, her inability to speak the English language fairly well has her be constantly threatened by Yamada for failing his expectations.

Azusa Seta is portrayed by Mitsumi Hiromura (広村 美つ美, Hiromura Mitsumi).

Rokuro Utahoshi

Rokuro Utahoshi (歌星 緑郎, Utahoshi Rokurō) is Kengo's father who worked for the OSTO on the lunar base that would later become the Rabbit Hatch. Studying Cosmic Energy together with Gamou and Emoto, he managed to develop both the Fourze Driver and the Astroswitches from the Core Switch yet expected the finalized versions would be made by future generations after his death. Seventeen years prior to the beginning of the series, Emoto's actions in taking the Zodiarts Switches to Earth for Gamou led to the destruction of most of the base with Rokuro stranded on the moon to die. However, he left an inscription on the outer wall of the Rabbit Hatch, explaining the legacy he meant to leave behind with the Astroswitches and Fourze Driver, which is also the belief that he upholds steadfastly.

Rokuro Utahoshi is portrayed by Toru Kazama (風間 トオル, Kazama Tōru).

Keizo Jingu

Keizo Jingu (神宮 敬蔵, Jingū Keizō) is JK's father who currently works as a fisherman, but he was once a popular musician and inspired JK to want to be a rock singer despite his own lack of talent. His leaving of this life behind prompted JK and Goto to follow their dreams of forming a rock band together, referring to him as a loser who gave up on his dreams (夢をあきらめた負け犬, yume o akirameta makeinu). He teaches Gentaro how to play the song he used to play to his son, which enables Gentaro to not only regain JK's friendship and snap him out of his delusions, but also indirectly leading Gentaro to beat the Capricorn Zodiarts. At the end of the episode, he and JK talk to each other through their cellphones, having a heart to heart chat.

Keizo Jingu is portrayed by Seigi Shimizu (志水 正義, Shimizu Seigi). As a young musician, Keizo is portrayed by Ryo of defspiral.

Yuki's parents

Yuki's father and mother are two eccentric people. As much as Yuki is in love with space travel, they are in love with different cultures as they like to dress up in the fashion matching the meals they make. For example, if they prepare French food, they dress up in French-style clothing.

Yuki's father is portrayed by Yuu Kamio (神尾 佑, Kamio Yū). Yuki's mother is portrayed by Mari Takahashi (高橋 麻理, Takahashi Mari).

Other AGHS faculty

The teachers of Amanogawa High School. Several members of the faculty are actually members of the Horoscopes.

Takashi Satake

Takashi Satake (佐竹 剛, Satake Takashi) is the teacher in charge of the Sunday remedial class/detention session, where allegedly only the most troublesome students in the school get forced into, and labeled by many students as "Study Hell" (地獄補習, Jigoku Hoshū) as he is a cruel and unforgiving man who makes his purpose to teach those in his class to become productive members of society. Mr. Satake also has an extreme intolerance towards delinquents, likening them to spots of dirt in a clean campus. He went so far to even call Gentaro a "bad boy" (バッドボーイ, baddo bōi), as well as giving him more severe punishments than all others in his class. However, after Gentaro saves his son from himself, Mr. Satake has a change of heart and gives Gentaro a passing grade in the test suggested by Shun just to give Gentaro a hard time. In the series epilogue, with Hayami gone, Mr. Satake takes over the role of principal.

Takashi Satake is portrayed by Satoshi Jinbo (神保 悟志, Jinbo Satoshi).

Haruka Utsugi

Haruka Utsugi (宇津木 遥, Utsugi Haruka) replaces Sarina Sonoda as the homeroom teacher for class 2-B, though she is rather uninterested with the job and always muses about quiting her job as a teacher, even in front of the students. She is a well-trained kickboxer and quite wary of her surroundings. Unlike the sour face she puts on at school, she is shown to be truly happy when she is training. She takes up a teaching job only because she is unsure if she can make a living out of kickboxing. Due to her fighting style, she is set up to look like as if she is the Switcher of the Pegasus Zodiarts. Gentaro eventually learns the truth while counseling Ms. Haruka, revealing his identity as Kamen Rider Fourze to her. He tells her that she has to stay true to her path in life, suggesting that she should try to balance her life both as a kickboxer and a teacher instead, just like how he is balancing his life both as a student and a Kamen Rider. Eventually she opts to stay at AGHS, forming a kickboxing club and, to Gentaro's chagrin, insists that he take some lessons from her, as his form is rather sloppy and inefficient.

Haruka makes a brief appearance in Kamen Rider × Kamen Rider Wizard & Fourze: Movie War Ultimatum, where it is stated that in addition to teaching, she has now become a champion kick boxer.

Haruka Utsugi is portrayed by Nao Nagasawa (長澤 奈央, Nagasawa Nao).^[8]

Mr. Morota

Mr. Morota (諸田先生, Morota-sensei) is an effeminate math teacher at AGHS who has romantic feelings for Hayami. In the Net Movies, during his search for the final Horoscopes member, Hayami has a horrible nightmare where Morota is the Pisces Zodiarts.

Mr. Morota is portrayed by Satoshi Morota (諸田 敏, Morota Satoshi), who is also the show's director.

Horoscopes

The Horoscopes (ホロスコープス, Horosukōpusu), alternatively called the Twelve Constellations of the Zodiac (黄道十二星座, Kōdō Jū-Ni Seiza), are the series' main recurring antagonists. Originally normal Zodiarts, they undergo an evolution of their human selves, keeping their human bodies unlike less advanced Last One Zodiarts. They answer directly to Mituaki Gamou and serve as members of his inner circle, sharing his ideals while believing themselves and those they select to be chosen by the Universe, to become superior beings. Gamou is among those who are reached by the Presenters (プレゼンター, Purezentā), a mysterious alien race that sends Core Switches to various worlds to enable the dominant race of that planet to reverse engineer a means to contact them. In humanity's case, their Core Switch becomes the basis for the Fourze Driver and the Zodiarts Switches.

Foundation X

Foundation X (財団X, Zaidan Ekkusu) is a mysterious research foundation that originally funded and researched Gaia Memories. However, after the death of a member of the foundation, they decide to cancel their researching on the Gaia Memories to begin researching the O Medals in Kamen Rider OOO, before deciding to research and fund Gamou's work in the Zodiarts Switches. Their goals and intentions in conducting and funding such researches are left to be seen.

Lem Kannagi

Lem Kannagi (レム・カンナギ, Remu Kannagi) is the mysterious agent of Foundation X who is the main antagonist of Kamen Rider × Kamen Rider Fourze & OOO: Movie War Mega Max. He searches for a mysterious substance called SOLU which is found in two meteorites that collided with the Earth. Kannagi is also responsible for the creation of the Super Evolved Lifeform Mutamits (超進化生命ミュータミット, Chō Shinka Seimei Myūtamitto), humans he induced mutation on, and the Dummy Inhumanoids (ダミー怪人, Damī Kaijin), composed of Museum Dopants and the four Greeed. He operates in a lab in the Exodus (エクソダス, Ekusodasu) spaceship. Kannagi also demonstrates the ability to utilize his breath as a repelling or attracting force, or to dissolve unprotected humans. Upon gathering the items needed for his master plan, Kannagi betrays Foundation X to carry out his scheme to rule the world.

He eventually gains the ability to transform into Super Gingaoh (超銀河王, Chō Ginga Ō) by using the Gingaoh Driver (ギンガオードライバー, Gingaō Doraibā), also known as the Medal Switch Driver (メダルスイッチドライバー, Medaru Suitchi Doraibā) due to utilizing both Kamen Rider Poseidon's Core Medals and the SOLU Switch (SOLUスイッチ, Soru Suitchi). In this form he becomes able to stop time with the powers of the Core Medals from the future, though this ability is ineffective against Kamen Rider OOO Super TaToBa Combo, whose Medals also come from the future. He also demonstrates a hover pack like that of Kamen Rider Fourze and the ability to remove his cape in order to turn it into a large boomerang-shaped sword. Super Gingaoh is defeated by Kamen Rider OOO Super TaToBa Combo and Kamen Rider Fourze Rocket States, sent flying in front of the Exodus and exploding when the shuttle goes through him. Super Gingaoh is based on Gingaoh (銀河王, Ginga Ō), the villain from the Skyrider movie.

Lem Kannagi is portrayed by Toru Masuoka (益岡 徹, Masuoka Tōru).

Katal

Katal (カタル, Kataru) is one of Lem Kannagi's subordinates. Foundation X experiments have turned him into a Mutamit known as Suddendath (サドンダス, Sadondasu), who resembles a dragon with a breath weapon of bright blue energy. Katal fight Kamen Rider Fourze and the Kamen Rider Club before meeting his end at the hands of Kamen Rider Fourze Rocket States's Rider Tailspin Crusher. Katal's Mutamit form Suddendath is based on the design of Suddendass of the Skyrider movie.

Katal is portrayed by Dante Carver (ダンテ・カーヴァー, Dante Kāvā).

Solaris

Solaris (ソラリス, Sorarisu) is one of Lem Kannagi's subordinates. She has also been transformed into a Mutamit by Foundation X who demonstrates catlike abilities without transforming, but never transforms into full Mutamit form. Instead she utilizes a Zodiarts Switch to become a copy of the Unicorn Zodiarts. She is defeated by Kamen Rider Double CycloneJokerXtreme.

Solaris is portrayed by Sanae Hitomi (人見 早苗, Hitomi Sanae).

Kiima

Chancellor Kiima (キイマ総統官, Kiima Sōtōkan) is Lem Kannagi's superior in Foundation X. She is killed by Kannagi after his agenda to take over the world is exposed.

Chancellor Kiima is portrayed by Azusa Watanabe (渡辺 梓, Watanabe Azusa).

Space Ironmen

The Space Ironmen (宇宙鉄人, Uchū Tetsujin) are fictional characters that appear in Kamen Rider Fourze the Movie: Space, Here We Come!. They are three Machine Organisms (機械生命体, Kikai Seimeitai) infused with Cosmic Energy created by Professor Blink to be used for good. However, becoming self-aware, the Kyodyne had other plans and fatally injured Blink. The Space Ironmen are an homage to the characters from Space Ironmen Kyodyne, which was created by Shotaro Ishinomori.

Kyodyne

The Space Ironmen Kyodyne (宇宙鉄人キョーダイン, Uchū Tetsujin Kyōdain) are the first two evil Space Ironmen who suddenly became activated and gained their own personalities, seeing themselves as superior to humans. Before dying from his injuries, Professor Blink has XVⅡ remove the Kyodynes' functions and send them to Earth as humans. However, creating the organization OSTO Legacy (オスト・レガシー, Osuto Regashī) as a front, the Kyodyne employ the Kamen Rider Club to restore their full abilities and use XVⅡ to launch an attack on Earth. Though destroyed, the Kyodyne resurface as members of Space Shocker during the events of Kamen Rider × Super Sentai × Space Sheriff: Super Hero Taisen Z. However, due to their sense of honor and desire to fight Gavan, the two are destroyed by Space Ika-Devil for acting against their cause.

Groundyne

Groundyne (グランダイン, Gurandain) is the blue car-like older brother of the Kyodyne who was forced to assume the identity of Harumi Saeba (冴葉 晴海, Saeba Harumi), the general manager of OSTO Legacy. He tricks the Kamen Rider Club into disabling XVⅡ so he and Skydyne can regain their abilities. As Groundyne, he is armed with a powerful cannon built into his chest called the Grounbuster X (グランバスターX, Guranbasutā Ekkusu) and has the ability to use his Cosmic Energy to summon Dustards like the Horoscopes. Groundyne is able to transform into a car-like form known as the Grouncar (グランカー, Gurankā).

Groundyne and his ability to transform into a car is a homage to Grounzel from Space Ironmen Kyodyne.

Groundyne and Harumi Saeba is voiced and portrayed by Kohki Okada (岡田 浩暉, Okada Kōki).

Skydyne

Skydyne (スカイダイン, Sukaidain) is the red jet-like younger sister of the Kyodyne, who acts in her human form as Shizuka Shirayama (白山 静, Shirayama Shizuka), Saeba's personal secretary. Like her brother, she gains her own personality and wants to rebel against humanity. She is armed with built-in blades in her arms. Skydyne is able to transform into a jet-like form called the Skyjet (スカイジェット, Sukaijetto).

Skydyne and her ability to transform into a jet is a homage to Skyzel from Space Ironmen Kyodyne.

Skydyne and Shizuka Shirayama is voiced and portrayed by Ayumi Kinoshita (木下 あゆ美, Kinoshita Ayumi).

Black Knight

Black Knight (ブラックナイト, Burakku Naito) is the third Space Ironman created by the Alicia Federation who works alongside an agent from the Alicia Federation named Inga Blink. Unlike the Kyodyne, Black Knight had not developed at the same mental capacity and is loyal to his human partner. His strong armor making him more defense than offensive, Black Knight is armed with a rapier called the Blackest Leaver (ブラッケスト・リーバー, Burakkesuto Rībā) and a machine gun built into his chest. Black Knight sacrificed himself in order to protect Inga and the Kamen Rider Club from the Kyodyne.

Black Knight is an homage to Black Knight of the Robot Army Corps, the main antagonist from Space Ironmen Kyodyne.

XVⅡ

Satellite Weapon XVⅡ (衛星兵器XVⅡ（エックスブイツー）, Eisei Heiki Ekkusu Bui Tsū) is a large satellite that has its own will. XVⅡ can communicate with humans through a globular computer terminal known as Brain (ブレイン, Burein) and has the personality of Professor Blink. It is the one responsible for keeping the Kyodyne in their human forms until it was attacked by them. XVⅡ is able to change from its satellite form to a large humanoid robot with a large "17" over its chest called One Seven Formation (ワンセブンフォーメーション, Wan Sebun Fōmēshon), known as the Space Ironman's "ultimate form". The Gunbase (ガンベース, Ganbēsu) drones act as a defense mechanism for when the Kyodyne return to attack. XVⅡ provides Kengo the blueprints for the Fusion Switch, allowing Kamen Rider Fourze to defeat the Kyodyne. XVⅡ expresses its gratitude to Gentaro and become friends before leaving on its journey through space in its satellite form. XVⅡ reappears in Kamen Rider × Kamen Rider Wizard & Fourze: Movie War Ultimatum, bringing Nadeshiko back to Earth.

XVⅡ is an homage to Daitetsujin 17, which was also created by Shotaro Ishinomori.^[9] The Gunbase are a homage to the support robot character Gonbesu from Space Ironmen Kyodyne.

XVⅡ is voiced by Tsutomu Isobe (磯部 勉, Isobe Tsutomu).

Alicia Federation

The Alicia Federation (アリシア連邦, Arishia Renpō) is an mysterious organization who created the Space Ironmen which appear in Kamen Rider Fourze the Movie: Space, Here We Come!.

Professor Blink

Professor Blink (ブリンク博士, Burinku-hakase) is a scientist of the Alicia Federation who created the Space Ironmen. However, after the Kyodyne were awakened with evil intentions, he commands XVⅡ to banish the Kyodyne to Earth and trap them in human forms.

Professor Blink is portrayed by Ken Nishida (西田 健, Nishida Ken).

Inga Blink

Inga Blink (インガ・ブリンク, Inga Burinku) is a female agent of the Alicia Federation and the daughter of Professor Blink dressed all in black who works alongside Black Knight. She tries to prevent the Kamen Rider Club from going into space who were deceived by the Kyodyne in their human forms. Her fighting style is the same as Ryusei's.

Inga's name is an anagram for Gaburin Queen (ガブリンクィーン, Gaburin Kwīn), one of Planet Dada's Earth Invading Robot Army members from Space Ironmen Kyodyne.

Inga Blink is portrayed by Mikie Hara (原 幹恵, Hara Mikie).

Monster League

The Monster League (怪人同盟, Kaijin Dōmei) is a club composed of psychic students who wish to create a new Earth with a superior breed of humans. After the defeat of the Hercules Zodiarts, the club was renamed the Youth League (少年同盟, Shōnen Dōmei). The Monster League/Youth League appears in Kamen Rider × Kamen Rider Wizard & Fourze: Movie War Ultimatum and is a homage to the Youth League from Inazuman, which was created by Shotaro Ishinomori. Five years ago, all of the Monster League members along with Yu Kamimura, became Gate tests for the Akumaizer.

Saburo Kazeta

Saburo Kazeta (風田 三郎, Kazeta Saburō) young man who possesses psychic power that is the leader of the Monster League. Due to his immense psychic power, he has the ability to become an armored larva-like mutant known as Sanagiman (サナギマン). He and the Monster League was supported by a mysterious figure known as Kageto Banba who was actually manipulating him by giving him a device called the Zeber (ゼーバー, Zēbā), which is thought to enhance psychic powers but is actually a device that stores his psychic energy. After realizing his mistake and learning to trust Gentaro, he eventually finds the will to fight for justice and became an even more powerful blue moth-like mutant known as Inazuman (イナズマン). He defeats the Hercules Zodiarts once and for all and decides to protect the students of Amanogawa High, going as far as renaming the Monster League to the Youth League.

Saburo transforms into Sanagiman by shouting "Gōriki Shōrai" (剛力招来, "Summon Mighty Power"), becoming wrapped in a blue cocoon that explodes to reveal his transformed state. As Sanagiman, he is shown to be extremely durable and have superhuman strength as he is able to repel Kamen Rider Fourze's Rider Rocket Punch. He transforms into Inazuman by shouting "Chōriki Shōrai" (超力招来, "Summon Super Power") and says "the Warrior of Freedom, Inazuman!" (自由の戦士、イナズマン!, Jiyū no Senshi, Inazuman!) before battle. His attacks include the Psychokinesis Chop (念力チョップ, Nenriki Choppu) and the Lightning Typhoon (稲妻タイフーン, Inazuma Taifūn). His finisher is the Super Inazuma Drop (超力イナズマ落とし, Chōriki Inazuma Otoshi), where he stores lightning in his right hand and chops the enemy then drops a lightning bolt from the sky. Saburo tends to scream "Chest!" (チェスト!, Chesuto!) before performing a finishing attack.

Saburo later reappears in Kamen Rider × Super Sentai × Space Sheriff: Super Hero Taisen Z as Sanagiman first then Inazuman, arriving from the future due to an mysterious anomaly caused by Space Shocker and fighting alongside Kamen Rider Fourze.

Saburo is a homage to Inazuman as he appeared in the original manga, based on the hero's human identity as Saburo Kazeta (風田 サブロウ, Kazeta Saburō). While Inazuman's design is based on the manga, the Zeber is a homage to the device that the TV version of Inazuman uses in Inazuman Flash.

Saburo Kazeta is portrayed by Kenta Suga (須賀 健太, Suga Kenta). As a child, Saburo is portrayed by Itsuki Shibuya (渋谷 樹生, Shibuya Itsuki).

Rumi Komaki

Rumi Komaki (小牧 瑠美, Komaki Rumi) is a member of the Monster League and is nicknamed "Ruby" (ルビー, Rubī).

Rumi Komaki is portrayed by Kasumi Yamaya (山谷 花純, Yamaya Kasumi). As a child, Rumi is portrayed by Shiori Haga (芳賀 栞, Haga Shiori).

Daita Kondo

Daita Kondo (近藤 大太, Kondō Daita) is a member of the Monster League and is nicknamed "Kong" (コング, Kongu).

Daita Kondo is portrayed by Kazuyoshi Nagazawa (中澤 兼利, Nagazawa Kazuyoshi). As a child, Daita is portrayed by Taiga Sakamoto (坂本 大河, Sakamoto Taiga).

Chikao Nezu

Chikao Nezu (根津 誓夫, Nezu Chikao) is a member of the Monster League and is nicknamed "Nezumi" (ネズミ).

Chikao Nezu is portrayed by Yuya Hara (原 勇弥, Hara Yūya). As a child, Chikao is portrayed by Hidetoshi Akutsu (阿久津 秀寿, Akutsu Hidetoshi).

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