Guest Stars Peter Sullivan as Cardinal Ascanio Sforza Vernon Dobtcheff as Cardinal Versucci Bosco Hogan as Cardinal Piccolomini Sebastian De Souza as Alfonso of Aragon Thure Lindhardt as Rufio John Rado as Cardinal Colonna Pilou Asbæk as Paolo Orsini Abraham Belaga as Vitelezzo Vitelli Prometheus Aleifer as Roberto Orsini Joseph Macnab as Prospero Colonna Peter Stebbings as Cardinal De Luca David Dencik as Cardinal Orsini Péter Kertész as Cardinal 1 Antal Leisen as Cardinal 2 Attila Árpa as Bodyguard #1 László Keszég as Bodyguard #2 Oliver Doherty as Young Juan