Cast
- Grant Richards as Philo Vance
- Roscoe Karns as Sgt. Heath
- Helen Burgess as Ada Greene
- Ruth Coleman as Sibella Greene
- Elizabeth Patterson as Mrs. Tobias Greene
- Harvey Stephens as Dr. Von Blon
- June Martel as Barton
- Ellen Drew as Secretary
- Purnell Pratt as John F. X. Markham
- Colin Tapley as Chester Greene
Crew
- Ewald André Dupont · Director
- Frank Partos · Writer
- Gladys Unger · Writer
- S.S. Van Dine · Writer
- Harry Fischbeck · Cinematographer
- James Smith · Editor