Cast
Henry O'Neill
Dubois (uncredited)
Renee Whitney
Telephone Operator (uncredited)
William Powell
Philo Vance
Mary Astor
Hilda Lake
Jack La Rue
Eduardo Grassi
Arthur Hohl
Gamble the Butler
Helen Vinson
Doris Delafield
Spencer Charters
Sergeant Snitkin (uncredited)
Eugene Pallette
Detective Heath
Robert McWade
District Attorney Markham
Harry Allen
Sandy (uncredited)
Wade Boteler
Desk Sergeant Mellish (uncredited)
James Burke
Policeman Who Lets Dog Out (uncredited)
George Chandler
Reporter at Police Station (uncredited)
Paul Panzer
Baggage Clerk (uncredited)
Leo White
Chicago Hotel Clerk (uncredited)
Ralph Morgan
Raymond Wrede
Frank Conroy
Brisbane Coe
Paul Cavanagh
Thomas MacDonald
Don Brodie
Police Photographer (uncredited)
Etienne Girardot
Dr. Doremus
Virginia Dabney
Girl (uncredited)
Charles Cahill Wilson
Detective Hennessy (uncredited)
Robert Barrat
Archer Coe
Milton Kibbee
Reporter (uncredited)