Philo Vance
Warren William
Bernice Stamm
Margaret Lindsay
Monty Montague
George Meeker
Dr. Halliday
Robert Warwick
Greeff
William B. Davidson
Trainor - Stamm's Butler
Arthur Aylesworth
Det. Hennessey
Charles C. Wilson
Det. Burke (uncredited)
Cliff Saum
Service Station Attendant (uncredited)
Milton Kibbee
Police Sergeant (uncredited)
Wilfred Lucas
Currey - Vance's Butler (uncredited)
Eric Wilton
Commander (uncredited)
Bruce Mitchell
Gale Leland
Lyle Talbot
Detective (uncredited)
Eddie Shubert
Steam Room Attendant (uncredited)
Sam McDaniel
Sgt. Ernest Heath
Eugene Pallette
Mother Stamm
Helen Lowell
District Attorney Markham
Robert McWade
Rudolph Stamm
Robert Barrat
Ruby Steele
Dorothy Tree
Ken Tatum
George E. Stone
Dr. Doremus - Coroner
Etienne Girardot
Editor
Terry O. Morse
Costume Design
Orry-Kelly
Director
H. Bruce Humberstone
Cinematography
Tony Gaudio
Novel
S.S. Van Dine
Conductor
Leo F. Forbstein
Writer
Rian James
Music
Bernhard Kaun
Art Direction
Jack Okey
Hair Designer
Martha Ocher
Sound
Leslie G. Hewitt
Screenplay
F. Hugh Herbert
Robert N. Lee