Philo Vance
Grant Richards
Sergeant Heath
Roscoe Karns
Lister
Leonard Carey
Nora Cecil
Harvey Stephens
Ivan F. Simpson
Greta Meyer
Myra Marsh
Barlowe Borland
Ada Greene
Helen Burgess
Sibella Greene
Ruth Coleman
Mrs. Tobias Greene
Elizabeth Patterson
Barton
June Martel
Secretary
Ellen Drew
John F. X. Markham
Purnell Pratt
Chester Greene
Colin Tapley
Rex Greene
James Bush
Director
E.A. Dupont
Novel
S.S. Van Dine
Writer
Gladys Unger
Frank Partos
Editor
James Smith
Producer
Robert North
Director of Photography
Harry Fischbeck
Executive Producer
William LeBaron
Art Direction
Hans Dreier
A. Earl Hedrick