Cast
- Boris Karloff - Edmond Bateman
- Bela Lugosi - Dr. Richard Vollin
- Lester Matthews - Dr. Jerry Holden
- Irene Ware - Jean Thatcher
- Samuel S. Hinds - Judge Thatcher
- Spencer Charters - Col. Bertram Grant
- Inez Courtney - Mary Burns
- Ian Wolfe - Geoffrey 'Pinky'
- Maidel Turner - Colonel's obese wife