Charles Laughton

Dr. Moreau

Richard Arlen

Edward Parker

Leila Hyams

Ruth Thomas

Lugosi Béla

The Sayer of the Law

Kathleen Burke

Lota the Panther Woman

Arthur Hohl

Montgomery

Stanley Fields

Capt. Davies

Paul Hurst

Capt. Donahue

Tetsu Komai

M`ling

George Irving

Consul

Joe Bonomo

Beast (uncredited)

Buster Brodie

Pig Man - a Little Beast (uncredited)

James Dime

Seaman (uncredited)

Charles Gemora

Gorilla on Pier (uncredited)

John George

Beast (uncredited)

Robert P. Kerr

Undetermined Role (uncredited)

Bob Kortman

Mr. Hogan (uncredited)

Robert Milasch

Beast (uncredited)

Constantine Romanoff

Beast (uncredited)

Duke York

Beast (uncredited)