Before Dawn

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