The Hope Diamond Mystery (1921) — Cast
Cast
| Harry Carter | Nang |
| Grace Darmond | Bibi |
| Carmen Phillips | Wanda |
| George Chesebro | Baptiste Debureau |
| Boris Karloff | Dakar |
| Arthur Clayton | Clayton Canfield |
| Harry Archer | Merle Johnson |
| Ethel Shannon | Lady Beltham |
| William Buckley | Putnam |
| Frank M. Seki | Saki |
| William Marion | Bagi |
| May Yohe | Lady Beltham |
Crew
| Charles W. Goddard | Writer |
| Stuart Paton | Director |
| John B. Clymer | Writer |