Dr. Charles Kessler
Bela Lugosi
Virginia Kessler
Polly Ann Young
Jim, a detective
Jack Mulhall
Guard at Ralph's Execution (uncredited)
Fred Aldrich
Psychiatrist (uncredited)
Lloyd Ingraham
Kirby--Coroner (uncredited)
Robert Strange
Kessler's Cook (uncredited)
Dorothy Vernon
Trial Judge (uncredited)
Robert F. Hill
Ralph Dickson / Paul Dickson
John McGuire
Evans the Butler
Clarence Muse
Lt. Williams
George Pembroke
Mrs. Kessler
Betty Compson
Jules Mason, caretaker
Ernie Adams
Mrs. Mason
Ottola Nesmith
Cecile Mannix, maid
Terry Walker
Detective Ryan
Fred Kelsey
Director
Joseph H. Lewis
Screenplay
Helen Martin
Story
Producer
Sam Katzman
Al Martin
Cinematography
Marcel Le Picard
Harvey Gould
Set Designer
Fred Preble
Music
Heinz Roemheld
Associate Producer
Pete Mayer
Sound Recordist
Glen Glenn
Editor
Robert Golden
Charles Dunworth
Lew Porter