Takeshi Kusao
Sho Fukamachi / Guyver
Seiz么 Kat么
Dr. Hamilcar Barcas (voice)
Hideyuki Tanaka
Agito Makishima / Guyver III (voice)
Jurota Kosugi
Elegen (voice)
Hirotaka Suzuoki
Masaki Murakami (voice)
Kozo Shioya
Tetsuro Segawa (voice)
Maria Kawamura
Shizu Onuma (voice)
Hideyuki Umezu
Takasato (voice)
Ikuya Sawaki
ZX-Tole (voice)
Yuko Mizutani
Mizuki Segawa (voice)
Banjo Ginga
Gaster (voice)
Hiroshi Naka
Cronos Combatant (voice)
Chieko Honda
Natsuki Taga/ Barcas's Aide (voice)
Katsumi Suzuki
Announcer / Cronos Combatant (voice)
Katsumi Suzuki
Scientist / Teacher (voice)
Issei Futamata
Aptom (voice)
Hidekatsu Shibata
Richard Guyot (voice)
Jun Hazumi
Genzo Makishima (voice)
Hirohiko Kakegawa
Cronos Combatant A / Enzyme II
Hiroyuki Oshida
Cronos Combatant (voice)