Joseph Cotten
Capt. Craig McKenzie / Cmdr. Glenn McKenzie
Acting
Cesar Romero
Dr. Malic / Lt. Hastings
Acting
Akira Takarada
Dr. Ken Tashiro
Acting
Masumi Okada
Dr. Jules Masson
Acting
Richard Jaeckel
Perry Lawton
Acting
Patricia Medina
Lucretia
Acting
Mari Nakayama
Tsuruko Okada
Acting
Akihiko Hirata
Dr. Sugata
Acting
Tetsu Nakamura
Dr. Okada
Acting
Hikaru Kuroki
Capt. Kroiga
Acting
Hitoshi Ōmae
Kobo
Acting
Linda Haynes
Dr. Anne Barton
Acting
Susumu Kurobe
Chin
Acting
Haruo Nakajima
Griffon / Giant Rat / Bat Man
Acting
Hiroshi Sekita
Warren / Bat Man
Acting
Teruo Aragaki
Giant Rat (uncredited)
Acting
Haruyoshi Nakamura
Giant Rat (uncredited)
Acting
Susumu Utsumi
Bat Man (uncredited)
Acting
Seiji Onaka
Sailor on escort ship (uncredited)
Acting
Osman Yusuf
Subordinate with gun (uncredited)
Acting
Wataru Ōmae
Advisor (uncredited)
Acting
Burr Middleton
Additional Voices (voice) (uncredited)
Acting