Jean Sorel
— Angelo Bello / Astorre Manfredi
Lisa Gastoni
— Lucrezia Borgia
Ilaria Occhini
— Dea
Edmund Purdom
— Cesare Borgia
Gino Pernice
— Galeazzo
Ferdinando Poggi
— Umberto
Linda Sini
— Margherita
Gianni Musy
— Paolo Orsini
Nino Vingelli
— Ursus
Livia Contardi
Pierre Clémenti
— Orsini's Partisan
Adriano Cornelli
— Archimedes the Dwarf
John Bartha
— Giovanni