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