Charles Laughton (Dr. Moreau)
Bela Lugosi (Sayer of the Law)
Richard Arlen (Edward Parker)
Leila Hyams (Ruth Thomas)
Kathleen Burke (Lota, the Panther Woman)
Constantine Romanoff (Actor/Actress)
Jack Walters (Actor/Actress)
Duke York (Ape Man)
Randolph Scott (Bit Part)
Robert Kerr (Actor/Actress)
Bob Milasch (Actor/Actress)
Alan Ladd (Ape Man)
Joe Bonomo (Actor/Actress)
Tetsu Komai (M'ling)
Larry "Buster" Crabbe (Actor/Actress)
John George (Actor/Actress)
Harry Ekezian (Gola)
Rosemary Grimes (Samoan Girl)
Paul Hurst (Capt. Donahue)
George Irving (American Consul)
Arthur Hohl (Montgomery)
Stanley Fields (Capt. of the Covena)
Bob Kortman (Hogan)
Hans Steinke (Ouran)