Tyrone Power

Andrea Orsini

Orson Welles

Cesare Borgia

Wanda Hendrix

Camilla Verano

Marina Berti

Angela Borgia

Katina Paxinou

Mona Zoppo

Everett Sloane

Mario Belli

Felix Aylmer

Marc Antonio Verano

Eduardo Ciannelli

Art Dealer (uncredited)

Eugene Deckers

Borgia Henchman (uncredited)