When a prominent official is murdered at a banquet honoring Charle Chan, the detective and son Lee team up to expose an opium-smuggling ring.
Charlie Chan
Lee Chan
Philip Nash
Diana Woodland
James Andrews
Ivan Marloff
Colonel Watkins, police commissioner
Dakin - Colonel Watkins' Aide
Taxi Driver Henchman
Reporter
French Diplomat
Dancer in Versailles Cafe (uncredited)
Chauffeur