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
Script Supervisor
Assistant Camera
Sound
Production Manager
Assistant Production Manager
Art Direction
Production Designer
Editor
Cinematography
Producer
Associate Producer
