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.
Ryōsuke Sakamoto
Shirou Gou / Red One
Naoto Ôta
Shingo Takasugi / Green Two
Akito Osuga
Ryuuta Nanbara / Blue Three
Sumiko Tanaka
Jun Yabuki / Yellow Four II
Yuki Yajima
Mika Koizumi / Yellow Four I
Michiko Makino
Hikaru Katsuragi / Pink Five
Yoshiko Ohta
Peebo (voice)
Munemaru Kôda
Doctor Man
