Bela Lugosi

Prof Leonide

George Zucco

Dr. Josef Van Ee

Nat Pendleton

Bill 'Bull' Raymond

Molly Lamont

Laura Van Ee

Joyce Compton

Jane Cornell

Gladys Blake

Lilly Beth

Roland Varno

Ward Van Ee

Angelo Rossitto

Indigo

Douglas Fowley

Terry Lee

Stanley Andrews

Pathologist

Lee Bennett

Rene the Killer

Stanley Price

Autopsy Surgeon

Dorothy Christy

Mrs. Williams (uncredited)

Walter Abbott

Screenplay

Christy Cabanne

Director

William B. David

Producer

Walt Maddox

Production Manager

Albert Deano

Wardrobe Designer

Carl Hoefle

Original Music Composer

Harry Reif

Art Direction

George McGuire

Editor

Marcel Le Picard

Director of Photography

Evelyn Bennett

Hairdresser

Walter Abbott

Original Story

Roland Ray

Makeup Artist