Katsuhiko Sasaki
Inventor Goro Ibuki
Katsuhiko Sasaki
Inventor Goro Ibuki
Yutaka Hayashi
Hiroshi Jinkawa
Hiroyuki Kawase
Rokuro 'Roku-chan' Ibuki
Kanta Mori
Japan Special Defense Forces Chief
Kotaro Tomita
Lead Seatopian Agent
Ulf Otsuki
Seatopian Agent
Sakyo Mikami
Truck Driver's Assistant
Fumiyo Ikeda
Man from Unit 1
Robert Dunham
Emperor Antonio of Seatopia
Gentaro Nakajima
Truck Driver
Ralph Jesser
Antonio's Aide (Radio Operator in White)
Shinji Takagi
Godzilla
Hideto Odachi
Megalon
Tsugutoshi Komada
Jet Jaguar
Masachika Mori
Jet Jaguar
Kenpachirō Satsuma
Gigan (as Kengo Nakayama)
Gorō Naya
Emperor Atonio of Seatopia (voice)
Eisuke Nakanishi
Narrator
Haruo Nakajima
Godzilla (archive footage) (uncredited)
Jun Fukuda
Director
Tomoyuki Tanaka
Producer
Yuzuru Aizawa
Director of Photography
Michiko Ikeda
Editor
Riichirō Manabe
Original Music Composer
Yoshifumi Honda
Production Design
Jun Fukuda
Screenplay
Eishiro Hayashi
Sound Recordist
Masakuni Morimoto
Lighting Technician
Shinichi Sekizawa
Lyricist
Masato Shimon
Vocals
Keisuke Shinoda
Production Manager
Teruyoshi Nakano
Special Effects
Teruyoshi Nakano
Visual Effects Director
Toshiro Aoki
Visual Effects Art Director
Takeshi Miyanishi
Visual Effects
Shoji Ogawa
Special Effects
Kazunobu Sanpei
Visual Effects Compositor
Shinichi Sekizawa
Story
Takeshi Kimura
Original Story
Tsunesaburo Nishikawa
First Assistant Director
Eiichi Asada
Assistant Director
Tadaaki Watanabe
Special Effects
Nobuyuki Yasumaru
Costume Design
Nobuyuki Yasumaru
Modeling
Tomoki Kobayashi
Assistant Costume Designer
Tomoki Kobayashi
Costume Design
Tomoki Kobayashi
Modeling
Motoyoshi Tomioka
VFX Director of Photography
Motoyoshi Tomioka
Special Effects
Kazunobu Sanpei
Visual Effects
Teruyoshi Nakano
Visual Effects
Shizuo Nakajima
Production Assistant