Guest Stars Peter Sullivan as Cardinal Ascanio Sforza Vernon Dobtcheff as Cardinal Versucci Bosco Hogan as Cardinal Piccolomini Gina McKee as Caterina Sforza Thure Lindhardt as Rufio Sebastian De Souza as Alfonso of Aragon John Rado as Cardinal Colonna Peter Stebbings as Cardinal De Luca David Dencik as Cardinal Orsini Antal Leisen as Cardinal 2 Péter Kertész as Cardinal 1 Andrew Gower as Assassin 1 Tam Dean Burn as Dominican Prior Mark Phelan as Morgue Worker Lukács Bicskey as Guard Barna Ilyes as Dominican Monk Mackenzie Munro as Concetta William Ruane as Papal Physician Ákos Horváth as Vatican Guard
