Philo Vance

William Powell

Acting

Sibella Greene

Florence Eldridge

Acting

Dr. Von Blon

Ullrich Haupt

Acting

Ada Greene

Jean Arthur

Acting

Sergeant Heath

Eugene Pallette

Acting

John F. X. Markham

E.H. Calvert

Acting

Mrs. Tobias Greene

Gertrude Norman

Acting

Chester Greene

Lowell Drew

Acting

Rex Greene

Morgan Farley

Acting

Sproot

Brandon Hurst

Acting

Mrs. Mannheim

Augusta Burmeister

Acting

Hemming

Marcia Harris

Acting

Nurse (uncredited)

Veda Buckland

Acting

Medical Examiner (uncredited)

Shep Camp

Acting

Lawyer Canon (uncredited)

Charles E. Evans

Acting

Miss O'Brien (uncredited)

Helena Phillips Evans

Acting

Barton (uncredited)

Mildred Golden

Acting

Policeman (uncredited)

Harry Strang

Acting