Detective Charlie Chan springs into action when top officials of a New Orleans chemical company begin dropping like flies.
| Actor | Role |
|---|---|
 Roland WintersCharlie Chan | Charlie Chan |
 Virginia DaleRene Blanchette | Rene Blanchette |
 Mantan MorelandBirmingham Brown | Birmingham Brown |
 John GallaudetPete McNalley | Pete McNalley |
 Victor Sen YungTommy Chan | Tommy Chan |
 Carol FormanNita Aguirre | Nita Aguirre |
 Douglas FowleyGrock | Grock |
 Harry HaydenOscar Swenstrom | Oscar Swenstrom |
 Emmett VoganHenri Castanaro | Henri Castanaro |
 Howard NegleyAndre Pereaux | Andre Pereaux |
 Stanley AndrewsTheodore Von Scherbe | Theodore Von Scherbe |
 Boyd IrwinSimon LaFontanne | Simon LaFontanne |
 Rory MallinsonThompson | Thompson |
 George J. LewisSergeant Dansiger | Sergeant Dansiger |
| HHaywood JonesMobile Jones | Mobile Jones |
 Ferris TaylorPolice Medical Examiner | Police Medical Examiner |
| EEric WiltonWatkins | Watkins |