A mad doctor (Bela Lugosi) and his helpers (John Carradine, George Zucco) lure girls to his lab for brain work, to help his wife.
as Dr. Richard Marlowe
as Nicholas
as Ralph Dawson
as Betty Benton
as Stella Saunders
as Toby
as Grego
as Marie
as Evelyn Marlowe
as Sheriff
as Mrs. Benton
as Sam, gas station attendant
as Alice, first motorist-victim seen
as Zombie
as Zombie
as Zombie
as S.K. - the Producer (uncredited)
as Deputy
as (scenes deleted/never filmed) (uncredited)
as (scenes deleted/never filmed) (uncredited)