Dwight Wilson
Patricia Merrick, also known as Mlle. Mystera
Dr. Paul Cornelius
Horace Merrick
Mattie (as Gertrude W. Hoffman)
Chief of Detectives John F. O'Hara
Joe Valerie
Mrs. Marble
Police Car Driver (uncredited)
Paddywagon Cop (uncredited)
Detective Schultz (uncredited)
Detective Brady (uncredited)
Editor
Settings
Assistant Camera
Assistant Director
Music Director
Production Executive
Cinematography
Screenplay
Production Assistant
Settings
Sound Recordist
Camera Operator
