Choudenshi Bioman

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

Hirohisa Nakata

Mason

Strong Kongo

Monster

Yûko Asuka

Farrah

Yukari Ôshima

Farrah Cat

Hiroshi Izawa

Mettzler (voice)

Masahiro Anzai

Jyuoh (voice)

Keisuke Yamashita

Psygorn (voice)

Kankou Nagai

Aquaiger (voice)

Shun Yashiro

Messarju (voice)

Kazuo Hayashi

Bio Hunter Silva (voice)

Ichirô Murakoshi

Narration (voice)