Cast
Michael Keith
Eric Carter
Harry Holcombe
Dr. Arnold Johnson
James Yagi
Yutaka Omura
Tadao Takashima
Osamu Sakurai
Kenji Sahara
Kazuo Fujita (as Keji Sahaka)
Ichirō Arishima
Mr. Tako (as Ichiro Arishima)
George Takei
Osamu Sakurai (voice) (uncredited)
Les Tremayne
Mr. Tako / Dr. Shigesawa / Dr. Akira Makino / General Masami Shinzo / Commander Roberts / Narrator (voice) (uncredited)
Byron Morrow
Newscaster (uncredited)
Mie Hama
Fumiko Sakurai (uncredited)
Crew
William L. Stevenson
Sound Effects
Peter Zinner
Music Supervisor
George Worthing Yates
Original Story
Takeo Kita
Production Design
Toshio Takashima
Lighting Technician
Hiroshi Mukoyama
Visual Effects
Eiji Tsuburaya
Special Effects
Hajime Koizumi
Director of Photography
Sadamasa Arikawa
Special Effects
Kenji Aoki
Choreographer
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