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Characters / Choudenshi Bioman

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    The Biomen 

Gou Shiro/Red One

Takasugi Shingo/Green Two

Nanbara Ryuuta/Blue Three

  • Delinquent: He used to be a delinquent in his teen years, but was inspired to change his ways. His first encounter with Prince reminded him of those times.
  • Punny Name: His Bioman codename is a pun on how the Japanese pronounce "Bruce Lee".
  • Shock and Awe: Elec Sword
  • The Sneaky Guy: His years of diving have made him very nimble and thus he is very skilled in stealth techniques.

Koizumi Mika/Yellow Four I

Yabuki Jun/Yellow Four II

  • Action Girl: Very much so, especially since her actress did her own stunts.
  • The Big Guy: Her actress was a professional stunt-woman, so the character participated in a number of stunts the others couldn't do including high jumps, rope swinging, and even riding on top of moving vehicles.
  • Legacy Character: Took over for Mika as Yellow Four.
  • Martial Arts Headband: You don't ever see Jun without wearing one (and it fits her role too). Even one episode had this weaponized by the villains by replacing it with a time bomb!
  • Shock and Awe: Thunder Sword

Katsuragi Hikaru/Pink Five


  • Expy Has a strong resemblance to C-3PO mixed with a Kamen Rider.
  • Gender Flip: Even though he's technically a sexless automaton, he addresses himself as a male in the Japanese original. In the English dub however, he was made female.
  • Robot Buddy: Was created to guard the Bio Particles and assists the Bioman in their missions.

Bio Robo

    Neo Gear Empire 

Doctor Man


  • The Dragon: The go-to henchman of the Big Three.
  • Hero Killer: Headed the mission the led to Mika's demise.
  • Mid-Season Upgrade: Is upgraded to included rockets and missiles in his body.
  • Sadist: Unlike Farrah and Monster, who favor stealth and power respectively, Mason seems to only want to cause as much suffering as possible.
  • The Starscream: Orchestrated a coup with the rest of the empire after learning Doctor Man's human didn't go well.


  • Evil Genius: Puts more emphasis on subtle plans than her teammates.
  • Femme Fatale: Has no issues with going from womanly to deadly.
  • Mad Scientist: Often the reason stealth was needed in her missions was so she could collect data and conduct experiments.
  • Master of Disguise: Many of her missions utilize this.


Farrah Cat

  • Dark Chick: Farrah's personal spy and assassin.
  • Dragon Their Feet: After Farrah is killed, Farrah Cat lasts until the final episode before being killed off.

    Anti-Bio Union 

Bio Hunter Silva

  • Big Bad: He reappears as one of the main antagonists of Kamen Rider × Super Sentai: Super Hero Taisen.
  • Blade Below the Shoulder: Both which can be fired like arrows.
  • Catchphrase: Hakai! Hakai! Hakai! (Destroy! Destroy! Destroy!)
  • The Dreaded: He possesses Anti-Bio Particles that are more powerful than those used to kill the first Yellow Four (Even though he doesn't manage to kill any Biomen with them). Peebo had a very good reason to fear him.
  • Evil Laugh: Prone to laughing as he's causing havoc.
  • Expy: Based on Kikaider's nemesis Hakaider.
  • Greater-Scope Villain: Silva proves to be a far more imposing threat than the Gear Empire and played a part in the destruction of the Bio Star in the series' backstory.
  • Hero Killer:
  • Humongous Mecha: Silva has Balzion, which was created to combat Bio Robo.
  • Nice Job Fixing It, Villain!: He killed off more members of the Neo Empire Gear than the Biomen did.
  • The Remnant: He's the last remaining member of the Anti-Bio Union, but that's not going to stop him from completing his mission.
  • Wild Card: Fights against both the Bioman and the Gear.

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