Donald Cook

Character: Dr. Truman Harwell

Jean Rouverol

Character: Eleanore Leavenworth

Erin O'Brien-Moore

Character: Gloria Leavenworth

Maude Eburne

Character: Phoebe Leavenworth

Warren Hymer

Character: O'Malley

Ian Wolfe

Character: Hudson

Norman Foster

Character: Detective Bob Grice

Frank Sheridan

Character: Silas Leavenworth

Gavin Gordon

Character: Henry Clavering

Clay Clement

Character: Inspector Holmes

Peggy Stratford

Character: Miss Owens

Archie Robbins

Character: Duke

Bess Stafford

Character: The Bulldog Woman

Lucille Ward

Character: The Pekingese Woman

Marie Rice

Character: Sarah - a servant

Carl Stockdale

Character: Leavenworth-Clavering Bookkeeper

Broderick O'Farrell

Character: Chemical Analysist

Dagmar Oakland

Character: Miss Hill

Lee Prather

Character: Fingerprint Expert

Belle Mitchell

Character: The Cat Woman