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