Tyrone Power
Andrea Orsini
Orson Welles
Cesare Borgia
Wanda Hendrix
Camilla Verano
Marina Berti
Angela Borgia
Everett Sloane
Mario Belli
Felix Aylmer
Marc Antonio Verano
Eduardo Ciannelli
Art Dealer (uncredited)
Eugene Deckers
Borgia Henchman (uncredited)
Antonella Lualdi
(uncredited)