Reparto y equipo

Edgar G. Ulmer

Boris Karloff Hjalmar Poelzig

Lugosi Béla Dr. Vitus Werdegast

David Manners Peter Alison

Julie Bishop Joan Alison

Egon Brecher The Majordomo

Harry Cording Thamal

Lucille Lund Karen

Henry Armetta The Sergeant

Albert Conti The Lieutenant

John Carradine Cult Organist

John George Cultist (uncredited)

Albert Pollet Waiter (uncredited)

Carl Laemmle Jr.

John J. Mescall

Ray Curtiss