Directed by
| David Burton | ... | (stage direction by) |
| Nick Grinde | ... | (as Nick Grindé) (screen direction by) |
Writing Credits
| S.S. Van Dine | ... | (from the book by) |
| Lenore J. Coffee | ... | (adaptation) |
Cast (in credits order) verified as complete
| Basil Rathbone | ... | Philo Vance | |
| Leila Hyams | ... | Belle Dillard | |
| Roland Young | ... | Sigurd Arnesson | |
| Alec B. Francis | ... | Professor Bertrand Dillard | |
| George F. Marion | ... | Adolph Drukker | |
| Zelda Sears | ... | Mrs. Otto Drukker | |
| Bodil Rosing | ... | Grete Menzel | |
| Carroll Nye | ... | John E. Sprigg | |
|
|
Charles Quatermaine | ... | John Pardee (as Charles Quartermaine) |
| James Donlan | ... | Police Sgt. Ernest Heath | |
| Sidney Bracey | ... | Pyne (as Sydney Bracey) | |
| Clarence Geldert | ... | John F.-X. Markham | |
| Delmer Daves | ... | Raymond Sperling | |
|
|
Nellie Bly Baker | ... | Beedle |
| Rest of cast listed alphabetically: | |||
| Richard Cramer | ... | Detective in Park (uncredited) | |
| Frank Fanning | ... | Officer Manning (uncredited) | |
| Marcia Mae Jones | ... | Hungry Child in Park (uncredited) | |
| Broderick O'Farrell | ... | Dr. Van Pelt (uncredited) | |
| Douglas Scott | ... | Child with Book in Park (uncredited) | |
Music by
| William Axt | ... | (uncredited) |
Cinematography by
| Roy F. Overbaugh | ... | (as Roy Overbaugh) (photographed by) |
Editing by
| William LeVanway | ... | film editor |
Art Direction by
| Cedric Gibbons | ||
Art Department
| Glenn Cravath | ... | poster artist (uncredited) |
Sound Department
| Donald MacKenzie | ... | recording director (as Dr. Donald Mac Kenzie) |
| G.A. Burns | ... | sound mixer (uncredited) |
| Frank McKenzie | ... | sound (uncredited) |
Costume and Wardrobe Department
| Henrietta Frazer | ... | wardrobe by |