Kenji Nojima
Shō Fukamachi / Guyver I (voice) (26 eps)
Nana Mizuki
Mizuki Segawa (voice) (26 eps)
Kosuke Takaguchi
Tetsurō Segawa (voice) (26 eps)
Katsuyuki Konishi
Agito Makishima / Guyver III (voice) (26 eps)
Michiko Neya
Shizu Onuma / Griselda (voice) (26 eps)
Tetsu Inada
Aptom (voice) (26 eps)
Takeharu Oonishi
Toshiaki Hayami / Bio-Freezer (voice) (26 eps)
Mitsuaki Madono
Imakarum Mirabilis / Masaki Murakami (voice) (26 eps)
Unsho Ishizuka
Oswald A. Lisker / Guyver II (voice) (26 eps)
Yasunori Matsumoto
Archanfel (voice) (26 eps)
Dai Matsumoto
Sin Rubeo Amniculus (voice) (26 eps)
Kinryuu Arimoto
Richard Guyot (voice) (26 eps)
Hiroshi Tsuchida
Friedrich von Purgstall (voice) (26 eps)
Saburo Kamei
Hamilcar Barcas (voice) (26 eps)
Gou Shinomiya
Li Yan Tui / Rienzi (voice) (26 eps)