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 Péter Kertész as Cardinal 1 Antal Leisen as Cardinal 2 Andrew Gower as Assassin 1 Mark Phelan as Morgue Worker Lukács Bicskey as Guard Tam Dean Burn as Dominican Prior Barna Ilyes as Dominican Monk Mackenzie Munro as Concetta William Ruane as Papal Physician Ákos Horváth as Vatican Guard
