Boris Karloff Hjalmar Poelzig Bela Lugosi 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) Edgar G. Ulmer Director John J. Mescall Director William J. Reiter Director Sam Weisenthal Director