Gary Cooper

Marco Polo

Sigrid Gurie

Princess Kukachin

Basil Rathbone

Ahmed

George Barbier

Kublai Khan

Binnie Barnes

Nazama

Ernest Truex

Binguccio

Alan Hale

Kaidu

H.B. Warner

Chen Tsu

Robert Greig

Chamberlain

Ferdinand Gottschalk

Persian Ambassador

Henry Kolker

Nicolo Polo

Stanley Fields

Bayan

Harold Huber

Toctai

Lana Turner

Maid

Ward Bond

Mongol Guard (uncredited)

Richard Farnsworth

Mongol Warrior (uncredited)

Hale Hamilton

Maffeo Polo (uncredited)

Theodore von Eltz

Venetian Business Man (uncredited)