Eric Carter

Dr. Arnold Johnson

Yutaka Omura

Osamu Sakurai

Kazuo Fujita (as Keji Sahaka)

Mr. Tako (as Ichiro Arishima)

Osamu Sakurai (voice) (uncredited)

Mr. Tako / Dr. Shigesawa / Dr. Akira Makino / General Masami Shinzo / Commander Roberts / Narrator (voice) (uncredited)

Newscaster (uncredited)

Fumiko Sakurai (uncredited)

Tamiye (uncredited)

Chikiro's Mother (Dancing Girl) (uncredited)

Dr. Shigezawa (uncredited)

Kinzaburo Furue (uncredited)

General Masami Shinzo (uncredited)

Faro Island Chief (uncredited)

Witch Doctor (uncredited)

Dreary Newscaster (uncredited)

Dr. Akira Makino (uncredited)

Rodrigo Infanta (uncredited)

Commander Roberts (uncredited)