Dr. Hidaka

Eiji Funakoshi

Albert Dekker

Brian Donlevy

Aoyagi

Junichiro Yamashita

Kyoke Yamamoto

Harumi Kiritachi

Nobuyo Sakurai

Michiko Sugata

Maru Captain

Jun Osanai

Diane Findlay

Mr. Ueda

Ichigen Ohashi

Soviet Representative

Munehiko Takada

Mr. Sakurai

Yoshirô Kitahara

Toshio Sakurai

Yoshiro Uchida

Old Farmer

Bokuzen Hidari

News Announcer

Yûji Moriya

Atomic Energy Research Institute Staff A

Toshio Maki

Professor Murase

Jun Hamamura

Atomic Energy Research Institute Staff B

Kazuo Sumida

Self-Defense Force Commander

Jutarō Hōjō

Eskimo Chief

Yoshio Yoshida

Police Station Chief

Rin Sugimori

Minister of Defense

Kenji Oyama

Atomic Energy Research Institute Staff C

Tetsurô Takeuchi

US Arctic Base Commander

Kōji Fujiyama

Officer

Kenichi Tani

Toshio's Uncle

Tsutomu Nakata

Atomic Energy Research Institute Chief

Osamu Maruyama

Old Farmer's Wife

Fumiko Murata