Guest Stars Peter Sullivan as Cardinal Ascanio Sforza Vernon Dobtcheff as Cardinal Versucci Bosco Hogan as Cardinal Piccolomini David Alpay as Calvino Laszlo Konter as Cardinal Colonna Jalaal Hartley as Pinturicchio Montserrat Lombard as Maria Olivér Tóth as Della Rovere's Cook Attila Árpa as Assassin 1