Characters played by William Powell
Philo Vance
Characters played by Mary Astor
Hilda Lake
Characters played by Eugene Pallette
Detective Heath
Characters played by Ralph Morgan
Raymond Wrede - the Secretary
Characters played by Robert McWade
District Attorney Markham
Characters played by Robert Barrat
Archer Coe
Characters played by Frank Conroy
Brisbane Coe
Characters played by Etienne Girardot
Dr. Doremus
Characters played by James Lee
Liang - the Cook
Characters played by Paul Cavanagh
Sir Thomas MacDonald
Characters played by Arthur Hohl
Gamble - the Butler
Characters played by Helen Vinson
Doris Delafield
Characters played by Jack La Rue
Eduardo Grassi
