Gary Cooper

as Marco Polo

Sigrid Gurie

as Princess Kukachin

Basil Rathbone

as Ahmed

George Barbier

as Kublai Khan

Binnie Barnes

as Nazama

Ernest Truex

as Binguccio

Alan Hale

as Kaidu

H.B. Warner

as Chen Tsu

Robert Greig

as Chamberlain

Ferdinand Gottschalk

as Persian Ambassador

Henry Kolker

as Nicolo Polo

Lotus Liu

as Visakha

Stanley Fields

as Bayan

Harold Huber

as Toctai

Lana Turner

as Maid

Ward Bond

as Mongol Guard (uncredited)

Richard Farnsworth

as Mongol Warrior (uncredited)

Hale Hamilton

as Maffeo Polo (uncredited)

Theodore von Eltz

as Venetian Business Man (uncredited)