Mitsuaki Gamou, otherwise known as "the Red-Eyed Man" due to his eyes occasionally glowing red before his name was officially revealed, is the main antagonist of Kamen Rider Fourze. He is a scientist who is also the founder/school board director of Amanogawa High School and the mastermind of the Zodiarts attacks.
He is also the Sagittarius Zodiarts, the leader and the most powerful member of the Horoscopes. During the summer of 1969, in conjunction with Apollo 11 beginning its exploration, Gamou heard the Presenters calling out to him and promised to meet them someday. With that drive, Gamou became an astronaut, forging connections to both NASA and the Russian Federal Space Agency before joining the OSTO, becoming "friends" with Rokuro Utahoshi and Kuniteru Emoto as they researched the powers of Cosmic Energy. However, receiving the Core Switch twenty years prior to the series, Rokuro and Gamou's friendship faltered as they take different routes of reverse engineering the Core Switch.
Publication Information
- Zodiarts : Mitsuaki Gamou
- Japanese : 我望 光明
- Type : Zodiarts Leader
- Known As :
- Related : Horoscopes
- Gender : Male
- HomeWorld : Earth (Main Timeline Continuity)
- Season : Kamen Rider Fourze
- First Appeareance : Kamen Rider Fourze Episode 1 : Youthful Transformation
- Last Appeareance : Kamen Rider Ghost : Legendary! Riders' Souls!
- Number of Appeareance :
- Potrayer : Shingo Tsurumi
- Main View : Full Episod
In Gamou's mind, using the Cosmic Switch as the basis for a system that forcefully evolves the human body within mere seconds was the more ideal choice over Rokuro's idea for a safe transwarp system that would take years after he is dead. Three years after finishing them, Gamou has Emoto steals the Zodiarts Switches from Utahoshi before the OSTO Space Station exploded.
Ten years prior to the series, with funding by Foundation X, Gamou built Amanogawa High School directly under an atmospheric vortex known as The Hole under the notion that it is ostensibly foster space exploration in future generations. But in reality, Gamou is masterminding the conditions to create the twelve Horoscopes switches so he can execute the Day of Awakening to reach the Presenters at the cost of the Earth's destruction.
Kamen Rider Fourze
Gamou usually remained on the sidelines while Kouhei Hayami or Sarina Sonoda distributed Switches in their Horoscopes forms, observing the events that unfold during the course of the year at AGHS, doing his best to keep prying eyes away from his schemes. That is, unless, one of his Horoscopes members was disappointing him. If it was their first offense, he would confiscate their Switch, then grant a second chance in which the failure results with the user banished into what Emoto claimed to be the Dark Nebula, as was the case with Ms. Sonoda. In his final moments alone, after using the Aquarius Switch to recreate the Core Switch and revive Kengo, Gamou apologizes to the Presenters that he would not keep his promise but assured them that his students will come to them in his stead, and disappears from existence in a plume of red Cosmic Energy.
Kamen Rider Fourze The Movie : Everyone, Space Is Here!
Gamou sends 12 Dummy Horoscope Switches to Foundation X, like they had arranged, for backing his project, but they're stolen by a third party. A Dummy Sagittarius Zodiarts, composed by pure Cosmic Energy, also appears alongside other 11 Dummy Horoscopes. They attack Fourze and Meteor when the Kamen Rider Club attempts to go to space. Alongside the dummy Gemini Zodiarts, Sagittarius defeats Fourze Cosmic States. However, Kamen Rider Wizard arrives and rescues both Riders, allowing them to go to space while Wizard destroyed the Dummy Gemini, Virgo, Pisces and Sagittarius. Later on, Gamou receives the Drill Switch from Yuki, and helps recharging Fourze's Switches and materialize the Fusion Switch alongside Amanogawa's students.
Kamen Rider × Super Sentai × Space Sheriff : Super Hero Taisen Z
The Sagittarius Zodiarts (only in its normal state, like the Dummy version) was one of the revived monsters in the Space Shocker army which fought a combined force of Kamen Riders, Super Sentai teamsIcon-crosswiki and Space SheriffsIcon-crosswiki as they approached the Genmu CastleIcon-crosswiki. It was seen fighting Gokai RedIcon-crosswiki. The Space Shocker force was soon destroyed.
Super Hero Taisen GP : Kamen Rider 3
Through an alteration to history rewritten by Shocker's History Modifying Machine, Sagittarius Nova is among the many monsters that serve the evil organization that rules the world in this alternate timeline created by Kamen Rider 3's assassination of the Double Riders in 1973. During the final battle against the Kamen Riders, Sagittarius Nova initially faces Fourze. However, after he's erased by the Rider Robo, Zeronos becomes his opponent. Sagittarius Nova is destroyed by Zeronos Zero form's Full Charge.
Kamen Rider Ghost : Legendary! Riders' Souls!
Gamou is resurrected as Sagittarius Nova and summoned by Frey alongside Lord Baron. After Lord Baron is defeated having left, he appears before Makoto Fukami and Onari who are out on patrol after Freya told the Mysterious Phenomenon Institute to gather the Kamen Riders' Ghost Eyecons. Overwhelming Makoto who transforms into Kamen Rider Specter, Gamou tells him that they are alike in that they have both faced despair and now live a solitary existence as they pursue their goals by any means necessary. Specter concedes to Gamou that he was like that once but now he has Takeru, who arrives to back up Specter as Kamen Rider Ghost, recollecting that Takeru still called him his friend as he was willing to forsake everything for his sister Kanon.
Game Appeareances The Sagittarius Zodiarts appears as a boss in the video game Kamen Rider: Battride War.
Form
Gamou is described by Emoto to be like the sun, a radiant figure of great intellect whose stubbornness can harm those closest to him. He is very reserved and metaphorical. Though friends with Rokuro and Emoto, Gamou never truly was a friend of anyone as the concept was of no true importance to him. He seems to take pride in his role as an astronaut, using space metaphors in his speech and stating to the Kamen Rider Club that his desire to see the Presenters for the sake of exploring the unknown and evolving beyond humanity is a justified reason for his actions.
Even since hearing from the Presenters when he was a child, he made meeting the Presenters as soon as possible his lifelong goal, fully willing to use and sacrifice just about anything and anyone to see his goal fulfilled. As such, while he appears to be benign most of the time, he is certainly amoral.
Sagittarius Zodiarts
- Main Article : Sagittarius Zodiarts
- Height : 237 cm
- Weight : 210 kg
- As the unnaturally durable Sagittarius Zodiarts, Gamou has a form of telekinesis that he uses to paralyze people should they try to get in the way. He is armed with a powerful bow on the left forearm called Gilgamesh, which can unleash a barrage of fiery Cosmic Energy-made arrows called Apostolos.
- While normallly closed, it will open if it absorbs large amounts of energy, like fire for example. Gamou can then release exponential amounts of energy arrows by drawing back a string made from the same energy and letting it loose an absurd amount of arrows all at once. These arrows are always accurate, and seem to be able to home in on their targets, such as Meteor's Storm Topper.
Sagittarius Nova
- Main Article : Sagittarius Nova
- Height : 237 cm
- Weight : 168 kg
- Once he goes Supernova, he obtains the form known as Sagittarius Nova, where he trades his huge bow and heavy armor for a much lighter body. In this state, Gamou can perform a flying kick attack, similar to a Rider Kick, with his leg surrounded by an aura of Cosmic Energy resembling an arrow.
- He can also throw a Rider Punch-like attack. He can still shoot arrows in this form, however, so he still remains a threat at all distances.
Aquarius Zodiarts
- Main Article : Aquarius Zodiarts
- Height : 231 cm
- Weight : 187 kg
- By using the Aquarius Switch, Mitsuaki can transform into the Aquarius Zodiarts.
- Mitsuaki used this form to restore the Core Switch and revive Kengo Utahoshi in Finale: Youthful Galaxy.
Power and Abilities:
- Gamou himself is shown to possess supernatural powers such as giving a member of the Horoscopes the ability to assume Supernova form, and the ability to conduct hypnotic suggestion that he uses on outsiders to drive them away, thus keeping his true agenda a secret from prying eyes. Like Tatsugami, he also sports an unique physique which allows him to use any manifested Zodiarts Switch.
- Once obtaining all twelve Horoscopes Switches, Gamou can evoke the Dark Nebula on command and use it to travel the cosmos. However, the power of the Dark Nebula would have caused the destruction of Japan in the process.

















