Eiko Yamada
Shotaro Kaneda (voice) (51 eps)
Ikuko Tani
Utako Shikishima (voice) (51 eps)
Kosei Tomita
Inspector Ohtsuka (voice) (51 eps)
Kumiko Takizawa
Makiko Shikishima (voice) (51 eps)
Yoshio Kaneuchi
Dr. Shikishima (voice) (51 eps)
Aiko Konoshima
Gina Hayakawa (voice) (51 eps)
Ikuo Nishikawa
Robi (voice) (51 eps)
Keiko Toda
Gura King Jr. (voice) (51 eps)
Kenji Utsumi
Space Demon King (voice) (51 eps)
Osamu Kobayashi
Branch (voice) (51 eps)
Tamio Ohki
Dr. Franken (voice) (51 eps)