The plot is motivated by a pearl necklace, which has caused the death and/or ruination of all its owners. The second screen appearance of detective Charlie Chan.
| Actor | Role |
|---|---|
 Marian NixonSally Phillmore | Sally Phillmore |
 Hobart BosworthP.J. Madden | P.J. Madden |
 Florence TurnerMrs. Phillmore | Mrs. Phillmore |
 Sôjin KamiyamaCharlie Chan | Charlie Chan |
 Slim SummervilleProspector | Prospector |
 Edmund BurnsRobert Eden | Robert Eden |
 Anna May WongNautch Dancer | Nautch Dancer |
 Albert ContiMartin Thorne | Martin Thorne |
 Fred EsmeltonAlexander Eden | Alexander Eden |
 Edgar KennedyMaydorf | Maydorf |
 George KuwaLouis Wong | Louis Wong |
 Dan MasonProspector | Prospector |
 Etta LeeGirl in Gambling Den | Girl in Gambling Den |
| JJack TrentJordan | Jordan |