The Leavenworth Case
Dr. Truman Harwell
Eleanore Leavenworth
Gloria Leavenworth
Phoebe Leavenworth
O'Malley
Hudson
Detective Bob Grice
Silas Leavenworth
Henry Clavering
Inspector Holmes
Miss Owens
Duke
The Bulldog Woman
The Pekingese Woman
Sarah - a servant
Leavenworth-Clavering Bookkeeper
Chemical Analysist
Miss Hill
Fingerprint Expert
The Cat Woman
