Cornelia Du Play
Inspector Vernon
Yvonne Balsac
John Sommerset
Schubin
Toinette - the Maid
Det. Sgt. Williams
Louis Mentone - Butler
Mr. Balsac - Yvonne's Father
Ivanov
Director
Production Manager
Script Supervisor
Sound
Assistant Camera
Art Direction
Original Story
Original Story
Editor
Dialogue
Cinematography
Producer
