Martine Carol
— Lucrèce Borgia
Pedro Armendáriz
— César Borgia
Valentine Tessier
— Julie Farnese
Arnoldo Foà
— Michelotto
Piéral
— The jester
Christian Marquand
— Paolo
Tania Fédor
— The lady of finery
Louis Seigner
— The magician
Howard Vernon
— The chaplain
Massimo Serato
— Alphonse d'Aragon
Maurice Ronet
— Perotto
Raphaël Patorni
— Este's envoy
Olivier Mathot
— The sculptor
Jean d'Yd
— The doctor