When an underhanded pharmaceutical company goes to a remote tropical island to steal King Kong for advertising purposes, they get more than they bargained for when the gigantic ape attacks an unsuspecting village and an enormous octopus.

Michael Keithas Eric Carter
Harry Holcombeas Dr. Arnold Johnson
James Yagias Yutaka Omura
Tadao Takashimaas Osamu Sakurai
Kenji Saharaas Kazuo Fujita (as Keji Sahaka)
Ichirō Arishimaas Mr. Tako (as Ichiro Arishima)
George Takeias Osamu Sakurai (voice) (uncredited)
Les Tremayneas Mr. Tako / Dr. Shigesawa / Dr. Akira Makino / General Masami Shinzo / Commander Roberts / Narrator (voice) (uncredited)
Byron Morrowas Newscaster (uncredited)
Mie Hamaas Fumiko Sakurai (uncredited)
Hajime Koizumi