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)

Erle C. Kenton