 |
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 |
 |
Lowell Drew as Chester Greene |
 |
Morgan Farley as Rex Greene |
 |
Brandon Hurst as Sproot |
|
Augusta Burmeister as Mrs. Mannheim |
 |
Marcia Harris as Hemming |
|
Veda Buckland as Nurse (uncredited) |
|
Shep Camp as Medical Examiner (uncredited) |
|
Charles E. Evans as Lawyer Canon (uncredited) |
|
Helena Phillips Evans as Miss O'Brien (uncredited) |
|
Mildred Golden as Barton (uncredited) |
 |
Harry Strang as Policeman (uncredited) |
| Directing | Frank Tuttle | Director |
| Writing | S.S. Van Dine | Novel |
| Writing | Louise Long | Screenplay |
| Camera | Henry W. Gerrard | Director of Photography |
| Editing | Verna Willis | Editor |
| Production | Fred A. Datig | Casting |
| Costume & Make-Up | Travis Banton | Costume Design |
| Production | Dick Stockton | Casting Assistant |
| Sound | Karl Hajos | Original Music Composer |
| Writing | Bartlett Cormack | Dialogue |
| Production | B.P. Schulberg | Producer |
| Crew | Adolph Zukor | Presenter |
| Crew | Jesse L. Lasky | Presenter |
| Writing | Bartlett Cormack | Adaptation |
| Crew | Richard H. Digges Jr. | Additional Writing |
