Warren William
Philo Vance
Margaret Lindsay
Bernice Stamm
Eugene Pallette
Sgt. Ernest Heath
Robert McWade
District Attorney Markham
Robert Barrat
Rudolph Stamm
Etienne Girardot
Dr. Doremus - Coroner
George Meeker
Monty Montague
Robert Warwick
Dr. Halliday
William B. Davidson
Greeff
Arthur Aylesworth
Trainor - Stamm's Butler
Charles C. Wilson
Det. Hennessey
Cliff Saum
Det. Burke (uncredited)
Milton Kibbee
Service Station Attendant (uncredited)
Wilfred Lucas
Police Sergeant (uncredited)
Eric Wilton
Currey - Vance's Butler (uncredited)
Bruce Mitchell
Commander (uncredited)
Eddie Shubert
Detective (uncredited)
Sam McDaniel
Steam Room Attendant (uncredited)
