The Venetian traveler Marco Polo meets Kublai Khan and foils a plotter with fireworks in medieval China.
| Actor | Role |
|---|---|
 Gary CooperMarco Polo | Marco Polo |
 Sigrid GuriePrincess Kukachin | Princess Kukachin |
 Basil RathboneAhmed | Ahmed |
 George BarbierKublai Khan | Kublai Khan |
 Binnie BarnesNazama | Nazama |
 Ernest TruexBinguccio | Binguccio |
 Alan HaleKaidu | Kaidu |
 H.B. WarnerChen Tsu | Chen Tsu |
 Robert GreigChamberlain | Chamberlain |
 Ferdinand GottschalkPersian Ambassador | Persian Ambassador |
 Henry KolkerNicolo Polo | Nicolo Polo |
| LLotus LiuVisakha | Visakha |
 Stanley FieldsBayan | Bayan |
 Harold HuberToctai | Toctai |
 Lana TurnerMaid | Maid |
 Ward BondMongol Guard (uncredited) | Mongol Guard (uncredited) |
 Richard FarnsworthMongol Warrior (uncredited) | Mongol Warrior (uncredited) |
 Hale HamiltonMaffeo Polo (uncredited) | Maffeo Polo (uncredited) |
 Theodore von EltzVenetian Business Man (uncredited) | Venetian Business Man (uncredited) |