Cast and Crew Of - Before
Cast Members
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)
Max Wagner Policeman in Car (uncredited)
Crew Members
Ralph Block Screenplay
Lucien N. Andriot Cinematography
Van Nest Polglase Settings
William Hamilton Editor
Carroll Clark Settings
Philip Faulkner Jr. Sound Recordist
Joseph F. Biroc Camera Operator
Max Steiner Music Director
Walter Mayo Assistant Director
Shirley C. Burden Production Assistant
Charles Bohny Assistant Camera
Merian C. Cooper Production Executive
Marion Dix Screenplay
Irving Pichel Director
Edgar Wallace Story
Garrett Fort Screenplay
