Besetzung
Irving Pichel
Police Radio Announcer (voice) (uncredited)
Dorothy Wilson
Patricia Merrick, also known as Mlle. Mystera
Warner Oland
Dr. Paul Cornelius
Gertrude Hoffmann
Mattie (as Gertrude W. Hoffman)
Tom Brower
Detective Schultz (uncredited)
Dudley Digges
Horace Merrick
Stuart Erwin
Dwight Wilson
Frank Reicher
Joe Valerie
Jane Darwell
Mrs. Marble
Stanley Blystone
Police Car Driver (uncredited)
Max Wagner
Policeman in Car (uncredited)
Oscar Apfel
Chief of Detectives John F. O'Hara
Ed Brady
Paddywagon Cop (uncredited)
Pat O'Malley
Detective Brady (uncredited)