Cast principale
野島健児
Shō Fukamachi / Guyver I (voice)
Nana Mizuki
Mizuki Segawa (voice)
高口公介
Tetsurō Segawa (voice)
Katsuyuki Konishi
Agito Makishima / Guyver III (voice)
Michiko Neya
Shizu Onuma / Griselda (voice)
Tetsu Inada
Aptom (voice)
大西健晴
Toshiaki Hayami / Bio-Freezer (voice)
真殿光昭
Imakarum Mirabilis / Masaki Murakami (voice)