Guest Stars Gina McKee as Caterina Sforza Thure Lindhardt as Rufio Sebastian De Souza as Alfonso of Aragon Pilou Asbæk as Paolo Orsini Abraham Belaga as Vitelezzo Vitelli Prometheus Aleifer as Roberto Orsini Joseph Macnab as Prospero Colonna Björn Hlynur Haraldsson as Gian Paolo Baglioni Brendan Cowell as Mattai the Hebrew Charlie Carrick as Pascal Linda Marlowe as Old Lady Luke Allen-Gale as Fredirigo Tom Keller as Gamaliel Kata Sarbó as Nurse 2 Bálint Adorjáni as Guard 1 Eric MacLennan as Gatekeeper Declan Hannigan as Servant Edit Balázsovits as Nurse Ferenc Hujber as Guard 2 Liam McMahon as General Tom Stuart as Sulphur Mine Overseer