Dorothy Wilson
Patricia Merrick, also known as Mlle. Mystera
Gertrude Hoffmann
Mattie (as Gertrude W. Hoffman)
Oscar Apfel
Chief of Detectives John F. O'Hara
Stanley Blystone
Police Car Driver (uncredited)
Ed Brady
Paddywagon Cop (uncredited)
Tom Brower
Detective Schultz (uncredited)
Pat O'Malley
Detective Brady (uncredited)
Ted Oliver
Police Desk Sergeant Hamilton (uncredited)
Irving Pichel
Police Radio Announcer (voice) (uncredited)
Max Wagner
Policeman in Car (uncredited)
