Dr. Yuzo Majida

Kenji Sahara

Dr. Paul Stewart

Russ Tamblyn

Akemi

Kumi Mizuno

Singer

Kipp Hamilton

General (uncredited)

Jun Tazaki

Dr.Kita

Nobuo Nakamura

Army Commander

Yu Fujiki

Sanda

Hiroshi Sekita

Police Chief

Hisaya Itô

Police Officer (uncredited)

Yoshibumi Tajima

Gaira

Haruo Nakajima

Sailor (uncredited)

Ren Yamamoto

Lt. Col. Kazama

Nadao Kirino

General's Aide (uncredited)

Kōzō Nomura

Fisherman

Ikio Sawamura

Soldier

Shōichi Hirose

Defiant Reporter (uncredited)

Tadashi Okabe

Skeptical Reporter (uncredited)

Hideo Shibuya

Fisherman #2 (uncredited)

Seishirô Kuno

Official (uncredited)

Someshō Matsumoto

Dr. Paul Stewart (voice) (uncredited)

Goro Mutsumi

Sanda (uncredited)

Yû Sekita