Cast 15

1. 

   Stuart Erwin

   Dwight Wilson

2. 

   Dorothy Wilson

   Patricia Merrick, also known as Mlle. Mystera

3. 

   Warner Oland

   Dr. Paul Cornelius

4. 

   Dudley Digges

   Horace Merrick

5. 

   Gertrude Hoffmann

   Mattie (as Gertrude W. Hoffman)

6. 

   Oscar Apfel

   Chief of Detectives John F. O'Hara

7. 

   Frank Reicher

   Joe Valerie

8. 

   Jane Darwell

   Mrs. Marble

9. 

   Stanley Blystone

   Police Car Driver (uncredited)

10. 

    Ed Brady

    Paddywagon Cop (uncredited)

11. 

    Tom Brower

    Detective Schultz (uncredited)

12. 

    Pat O'Malley

    Detective Brady (uncredited)

13. Ted Oliver

    Police Desk Sergeant Hamilton (uncredited)

14. 

    Irving Pichel

    Police Radio Announcer (voice) (uncredited)

15. Max Wagner

    Policeman in Car (uncredited)

Crew 16