Diretor/a
Christy Cabanne
DIRETOR/A
Elenco (na ordem dos créditos)
Bela Lugosi
Prof. Leonide
George Zucco
Dr. Joseph Van Ee
Molly Lamont
Laura Van Ee
Nat Pendleton
Bill Raymond
Joyce Compton
Jane Cornell
Gladys Blake
Lilybeth
Roland Varno
Ward Van Ee
Douglas Fowley
Terry Lee
Stanley Andrews
Pathologist
Angelo Rossitto
Indigo
Lee Bennett
Rene the Killer
Stanley Price
Autopsy Surgeon
Dorothy Christy
Mrs. Williamsuncredited