Charles Laughton
Dr. Moreau
Richard Arlen
Edward Parker
Leila Hyams
Ruth Thomas
Bela Lugosi
The Sayer of the Law
Kathleen Burke
Lota the Panther Woman
Arthur Hohl
Montgomery
Stanley Fields
Capt. Davies
Paul Hurst
Capt. Donahue
Hans Steinke
Ouran
Tetsu Komai
M`ling
George Irving
Consul
Jack Bardette
Undetermined Role (uncredited)
Evangelus Berbas
Undetermined Role (uncredited)
Joe Bonomo
Beast (uncredited)
Buster Brodie
Pig Man - a Little Beast (uncredited)
Jacob Dance
Beast (uncredited)
James Dime
Seaman (uncredited)
Harry Ekezian
Gola (uncredited)
Charles Gemora
Gorilla on Pier (uncredited)
John George
Beast (uncredited)
Rosemary Grimes
Samoan Girl (uncredited)
Robert P. Kerr
Undetermined Role (uncredited)
Bob Kortman
Mr. Hogan (uncredited)
Robert Milasch
Beast (uncredited)
Constantine Romanoff
Beast (uncredited)
Schlitzie
Furry Manimal (uncredited)
Jack Walters
Undetermined Role (uncredited)
Duke York
Beast (uncredited)