船越英二

Dr. Hidaka

姿美千子

Nobuyo Sakurai

霧立はるみ

Kyoke Yamamoto

北原義郎

Mr. Sakurai

左卜全

Old Farmer

村田扶実子

Old Farmer's Wife

浜村純

Professor Murase

Jutarō Hojo

Self-Defense Force Commander

吉田義夫

Eskimo Chief

大山健二

Minister of Defense

Jun Osanai

Maru Captain

藤山浩二

US Arctic Base Commander

Ichigen Ohashi

Mr. Ueda

Munehiko Takada

Soviet Representative

谷謙一

Officer

中田勉

Toshio's Uncle

Yūji Moriya

News Announcer

丸山修

Atomic Energy Research Institute Chief

内田喜郎

Toshio Sakurai

Toshio Maki

Atomic Energy Research Institute Staff A

Kazuo Sumida

Atomic Energy Research Institute Staff B

Rin Sugimori

Police Station Chief

Tetsurô Takeuchi

Atomic Energy Research Institute Staff C

山下洵一郎