Before Dawn

Stuart Erwin Dwight Wilson Dorothy Wilson Patricia Merrick, also known as Mlle. Mystera Warner Oland Dr. Paul Cornelius Dudley Digges Horace Merrick Gertrude Hoffmann Mattie (as Gertrude W. Hoffman) Oscar Apfel Chief of Detectives John F. O'Hara Frank Reicher Joe Valerie Jane Darwell Mrs. Marble 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)