Boris Karloff
Edmond Bateman
Bela Lugosi
Dr. Richard Vollin
Lester Matthews
Dr. Jerry Holden
Samuel S. Hinds
Judge Thatcher
Spencer Charters
Col. Bertram Grant
Ian Wolfe
Geoffrey 'Pinky' Burns
Raine Bennett
Poe (uncredited)
Al Ferguson
The Crook (uncredited)
Nina Golden
Dancer (uncredited)
Jonathan Hale
Bedside Dr. at Jerry's Right (uncredited)
Arthur Hoyt
Chapman - Buyer of Poe Memorabilia (uncredited)
Walter Miller
Bedside Dr. at Judge's Right (uncredited)
Bud Osborne
Policeman (uncredited)
Madeline Talcott
Bedside Nurse (uncredited)
Cyril Thornton
Dr. Vollin's Butler (uncredited)
Anne Darling
Autograph Hound