Directed by
| René Clair | ... | (as Rene Clair) |
Writing Credits
| Agatha Christie | ... | (novel) |
| Dudley Nichols | ... | (screenplay) |
Cast (in credits order) verified as complete
| Barry Fitzgerald | ... | Judge Francis J. Quincannon | |
| Walter Huston | ... | Dr. Edward G. Armstrong | |
| Louis Hayward | ... | Philip Lombard | |
| Roland Young | ... | Detective William Henry Blore | |
| June Duprez | ... | Vera Claythorne | |
| Mischa Auer | ... | Prince Nikita Starloff | |
| C. Aubrey Smith | ... | Gen. Sir John Mandrake (as Sir C. Aubrey Smith) | |
| Judith Anderson | ... | Emily Brent | |
| Richard Haydn | ... | Thomas Rogers | |
| Queenie Leonard | ... | Ethel Rogers | |
 |
Harry Thurston | ... | Fred Narracott |
Produced by
| René Clair | ... | producer (as Rene Clair) |
| Harry M. Popkin | ... | executive producer (uncredited) |
| Leo C. Popkin | ... | associate producer |
Music by
| Mario Castelnuovo-Tedesco | ... | (as M. Castelnuovo-Tedesco) |
Cinematography by
| Lucien N. Andriot | ... | director of photography (as Lucien Andriot) |
Editing by
| Harvey Manger | ||
Art Direction by
| Ernst Fegté | ... | (as Ernst Fegte) |
Set Decoration by
| Edward G. Boyle | ... | (as Edward Boyle) |
Costume Design by
| René Hubert | ... | (uncredited) |
Production Management
| Ben Berk | ... | unit manager |
| Joseph H. Nadel | ... | production manager |
Second Unit Director or Assistant Director
| Sam Nelson | ... | assistant director |
Sound Department
| Arthur Johns | ... | sound recordist |
| Corson Jowett | ... | sound recordist |
Costume and Wardrobe Department
| Eugene Joseff | ... | costume jeweller (uncredited) |
Music Department
| Charles Previn | ... | musical director |
Additional Crew
| Harry M. Popkin | ... | presenter |
