Five descendants of the people showered with Bio Particles by Bio Robots five centuries in the past have become Biomen. They transform with the Bio Brace and fight using their Super Electronic Brains on their masks. Their Bioswords are equipped with sword and gun modes.
Shirou Gou / Red One
Shingo Takasugi / Green Two
Ryuuta Nanbara / Blue Three
Jun Yabuki / Yellow Four II
Mika Koizumi / Yellow Four I
Hikaru Katsuragi / Pink Five
Peebo (voice)
Doctor Man
Mason
Monster
Farrah
Farrah Cat
Mettzler (voice)
Jyuoh (voice)
Psygorn (voice)
Aquaiger (voice)
Messarju (voice)
Bio Hunter Silva (voice)
Narration (voice)
