Character Name : Dwight Wilson

Original Name : Stuart Erwin

Gender : Male

Character Name : Patricia Merrick, also known as Mlle. Mystera

Original Name : Dorothy Wilson

Gender : Female

Character Name : Dr. Paul Cornelius

Original Name : Warner Oland

Gender : Male

Character Name : Horace Merrick

Original Name : Dudley Digges

Gender : Male

Character Name : Mattie (as Gertrude W. Hoffman)

Original Name : Gertrude Hoffmann

Gender : Female

Character Name : Chief of Detectives John F. O'Hara

Original Name : Oscar Apfel

Gender : Male

Character Name : Joe Valerie

Original Name : Frank Reicher

Gender : Male

Character Name : Mrs. Marble

Original Name : Jane Darwell

Gender : Female

Character Name : Police Car Driver (uncredited)

Original Name : Stanley Blystone

Gender : Male

Character Name : Paddywagon Cop (uncredited)

Original Name : Ed Brady

Gender : Male

Character Name : Detective Schultz (uncredited)

Original Name : Tom Brower

Gender : Male

Character Name : Detective Brady (uncredited)

Original Name : Pat O'Malley

Gender : Male

Character Name : Police Desk Sergeant Hamilton (uncredited)

Original Name : Ted Oliver

Gender : Male

Character Name : Police Radio Announcer (voice) (uncredited)

Original Name : Irving Pichel

Gender : Male

Character Name : Policeman in Car (uncredited)

Original Name : Max Wagner

Gender : Male