Bela Lugosi
Prof Leonide
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