Yoshino Takamori as Nadia

Noriko Hidaka as Jean

Kumiko Takizawa as Grandis

Kenyu Horiuchi as Sanson

Toshiharu Sakurai as Hanson / King (voice)

Tsukasa Itou as Fuzzy

Chikao Ohtsuka as Giger

Tamio Ohki as Doctor Woolar

Shuichi Ikeda as Fly

Tessyo Genda as Chief newspaper editor

Kenichi Ogata as Newspaper agency president

Masashi Ebara as Science Pressman (voice)

Nobuyuki Furuta as Pressman

Masayuki Katô as German Admiral (voice)

Ryuji Nakagi as Geiger's Underling (voice)

Yukari Hishizu as Geiger's Henchman (voice)

Chafurin as Geiger's Underling (voice)

Shinya Ôtaki as General (voice)

Yuko Mizutani as Marie (voice)

Akio Otsuka as Captain Nemo (voice)

Kikuko Inoue as Electra (voice)

Motomu Kiyokawa as Gargoyle (voice)

Koji Tsujitani as Ayerton (voice)

Yasunori Matsumoto as Eiko Villan (voice)

Yu Shimaka as Chief Engineer (voice)

Teiji Ōmiya as Captain Mevil (voice)

Hiroshi Masuoka as Jean's Uncle (voice)

Toshihiko Seki as Falt (voice)