Trailer
 | Tadao Takashima as Tasumo Hatanaka |
 | Yōko Fujiyama as Makoto Jinguji |
 | Yū Fujiki as Yoshito Nishibe |
 | Kenji Sahara as Uto Omino |
 | Ken Uehara as Admiral Kosumi |
 | Hiroshi Koizumi as Inspector |
 | Jun Tazaki as Captain Hachiro Jinguji |
 | Yoshibumi Tajima as Tome 'Amano' Amanoshome |
 | Akihiko Hirata as Mu Agent #23 |
 | Hideyo Amamoto as High Priest of Mu |
 | Susumu Fujita as Defense Commander |
 | Minoru Takada as Government Official |
 | Hisaya Ito as Shindo |
 | Ikio Sawamura as Taxi Driver |
 | Tetsuko Kobayashi as Empress of Mu |
 | Akemi Kita as Rimako - Sneezing Model |
 | Hiroshi Hasegawa as Liuetenant Fuji |
 | Nadao Kirino as Kidnapped Scientist |
 | Shin Ōtomo as Government Official |
| Haruya Sakamoto as Sergeant Yamada |
 | Tetsu Nakamura as Warship Captain |
 | Yutaka Nakayama as Sailor |
| Mitsuo Tsuda as Defense Agency Executive B |
| Kôji Uno as Police Officer |
| Sadako Amemiya as Memoko - Girl in Susumu's studio |
 | Rinsaku Ogata |
| Hideo Ôtsuka |
| Yutaka Oka as Man of Bus |
| Yukihiko Gondō as Military Henchman |
 | Shōichi Hirose as Mu Henchman |
 | Katsumi Tezuka as Mu Henchman |
 | Takuzō Kumagai as (as Jirô Kumagai) |
| Yasuzō Ogawa as Mu Henchman Beside High Priest of Mu |
| Shirō Tsuchiya as Senior Officer |
 | Wataru Ōmae as Police Officer |
 | Osman Yusuf as Mu Submarine Crewman |
| Toshio Miura |
| Masayoshi Kawabe |
| Hiroshi Akitsu |
 | Hideo Shibuya |
| Keisuke Yamada |
| Shinjirô Hirota |
| Keisuke Yamaji |
| Kuniyoshi Kashima |
| Hal Archer as Detective Ito (voice) |
| Sanjay Mamohan Berry as One of Mu Imperials |
 | Bin Furuya as JSDF member |
| Kazuo Hinata as Defense Agency Executive |
| Eisaburo Komatsu as Sergeant Goten Kenbutai |
 | Akio Kusama as Todoroki Takashi, Ken Taketai officersI |
 | Keiji Sakakida as Mt. Mihara Climber |
| Kamayuki Tsubono |
| Enver Altenbay as Minor Role (uncredited) |
| Ralph Jesser as One of Mu Imperials (uncredited) |
 | Haruo Nakajima as Mu Empire man / Self Defense Forces exec |
| Production | |
| Tomoyuki Tanaka | Producer |
Writing | |
| Shinichi Sekizawa | Screenplay |
| Shunro Oshikawa | Novel |
Crew | |
| Eiji Tsuburaya | Special Effects Coordinator |
Directing | |
| Ishirō Honda | Director |
Writing | |
| Shigeru Komatsuzaki | Novel |
Art | |
| Takeo Kita | Production Design |
Sound | |
| Akira Ifukube | Original Music Composer |
Editing | |
| Ryôhei Fujii | Editor |
Camera | |
| Hajime Koizumi | Director of Photography |
Writing | |
| Shigeru Komatsuzaki | Characters |
Art | |
| Shigeru Komatsuzaki | Storyboard Artist |
Visual Effects | |
| Shigeru Komatsuzaki | Mechanical Designer |
