| Person | Type | Job | Role(s) |
|---|---|---|---|
 Eiji Tsuburaya | Crew | Crew | Special Effects, Visual Effects |
 Hugo Grimaldi | Crew | Directing | Director, Editor |
 Ib Melchior | Crew | Writing | Screenplay |
Masanobu Miyazaki | Crew | Sound | Sound Recordist |
 Masaru Satō | Crew | Sound | Original Music Composer |
 Motoyoshi Oda | Crew | Directing | Director |
Paul Sawtell | Crew | Sound | Original Music Composer |
Rex Lipton | Crew | Sound | Music Editor |
Seiichi Endo | Crew | Camera | Director of Photography |
Shigeaki Hidaka | Crew | Writing | Screenplay |
 Shigeru Kayama | Crew | Writing | Novel, Original Story |
Takeo Kita | Crew | Art | Production Design |
 Takeo Murata | Crew | Writing | Screenplay |
Teruaki Abe | Crew | Art | Production Design |
 Tomoyuki Tanaka | Crew | Production | Producer |
Kazuo Baba | Crew | Production | Production Manager |
Masaki Ônuma | Crew | Lighting | Lighting Technician |
 Paul Schreibman | Crew | Production | Producer |
Sadao Iizuka | Crew | Visual Effects | Visual Effects |
 George Takei | Cast | Actor | Commander of Landing Craft Ikeda (voice) |
 Haruo Nakajima | Cast | Actor | Gigantis |
 Hiroshi Koizumi | Cast | Actor | Shoichi Tsukioka |
 Katsumi Tezuka | Cast | Actor | Angurus |
 Keye Luke | Cast | Actor | Shoichi Tsukioka (voice) |
 Marvin Miller | Cast | Actor | Koji Kobayashi / Narrator (voices) |
 Masao Shimizu | Cast | Actor | Dr. Tadokoro |
 Mayuri Mokushô | Cast | Actress | Yasuko Inouye, Koji's girl |
 Minoru Chiaki | Cast | Actor | Kôji Kobayashi |
 Minosuke Yamada | Cast | Actor | Chief of Civil Defense |
 Paul Frees | Cast | Actor | Doctor Kyohei Yamane, Commander of Osaka's SDF Terasawa, President of Fishery Koehi Yamaji (voices) |
 Ren Yamamoto | Cast | Actor | Commander of Landing Craft Ikeda |
 Seijirô Onda | Cast | Actor | Commander of Osaka's SDF Terasawa |
 Senkichi Ōmura | Cast | Actor | Convict |
 Setsuko Wakayama | Cast | Actress | Hidemi Yamaji |
 Shin Ōtomo | Cast | Actor | Convict Leader |
 Shōichi Hirose | Cast | Actor | Convict |
 Sonosuke Sawamura | Cast | Actor | Foreman Shibeki |
 Takashi Shimura | Cast | Actor | Doctor Yamane |
Takeo Oikawa | Cast | Osaka Chief of Police | |
 Yoshio Tsuchiya | Cast | Actor | Member of Osaka's SDF Tajima |
Yukio Kasama | Cast | President of Fishery Koehi Yamaji | |
Aya Oyama | Cast | Hidemi Yamaji (voice) | |
| Person | Type | Job | Role(s) |
