| Person | Type | Job | Role(s) |
|---|---|---|---|
 Jun Fukuda | Crew | Directing | Director, Writer, Screenplay |
 Michiko Ikeda | Crew | Editing | Editor |
 Riichirō Manabe | Crew | Sound | Original Music Composer |
 Shinichi Sekizawa | Crew | Writing | Original Story, Lyricist, Story |
 Takeshi Kimura | Crew | Writing | Original Story |
 Teruyoshi Nakano | Crew | Visual Effects | Special Effects Supervisor, Special Effects, Visual Effects Director, Visual Effects |
 Tomoyuki Tanaka | Crew | Production | Producer |
Yuzuru Aizawa | Crew | Camera | Director of Photography |
Yoshifumi Honda | Crew | Art | Production Design, Art Direction |
Keisuke Shinoda | Crew | Production | Production Manager |
Eiichi Asada | Crew | Directing | Assistant Director |
Masato Shimon | Crew | Sound | Vocals |
 Motoyoshi Tomioka | Crew | Visual Effects | VFX Director of Photography, Special Effects |
Eisuke Nakanishi | Cast | Actor | Narrator |
Fumiyo Ikeda | Cast | Man from Unit 1 | |
Gentaro Nakajima | Cast | Truck Driver | |
 Gorō Naya | Cast | Actor | Emperor Atonio of Seatopia (voice) |
 Haruo Nakajima | Cast | Actor | Godzilla (archive footage) (uncredited) |
Hideto Odachi | Cast | Megalon | |
 Hiroyuki Kawase | Cast | Actor | Rokuro 'Roku-chan' Ibuki |
Kanta Mori | Cast | Actor | Japan Special Defense Forces Chief |
 Katsuhiko Sasaki | Cast | Actor | Inventor Goro Ibuki |
 Kenpachirō Satsuma | Cast | Actor | Gigan |
 Kotaro Tomita | Cast | Actor | Lead Seatopian Agent |
 Robert Dunham | Cast | Actor | Emperor Antonio of Seatopia |
Sakyo Mikami | Cast | Truck Driver's Assistant | |
Shinji Takagi | Cast | Godzilla | |
Tsugutoshi Komada | Cast | Jet Jaguar | |
Rolf Jessup | Cast | Antonio's Aide (Radio Operator in White) | |
 Yutaka Hayashi | Cast | Actor | Hiroshi Jinkawa |
 Ulf Otsuki | Cast | Actor | Seatopian Agent |
| Person | Type | Job | Role(s) |
