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