Casts
William Powell
as Philo Vance
Florence Eldridge
as Sibella Greene
Ullrich Haupt
as Dr. Von Blon
Jean Arthur
as Ada Greene
Eugene Pallette
as Sergeant Heath
E.H. Calvert
as John F. X. Markham
Gertrude Norman
as Mrs. Tobias Greene
Morgan Farley
as Rex Greene
Brandon Hurst
as Sproot
Marcia Harris
as Hemming
