Charles Laughton

Dr. Moreau

Richard Arlen

Edward Parker

Leila Hyams

Ruth Thomas

Béla 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)

Jimmy 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)