Guest Stars Ian Pirie as Captain Dragonetti Andrew Brooke as Grunwald Tim Faraday as Black Martin Ross O'Hennessy as Commander Quattone Nicholas Rowe as Cardinal Orsini Paul Westwood as Niccolo Ardinghelli Ted Allpress as Young Leonardo John Cording as Father Bagnone Simon Armstrong as Scarpa Joe Claflin as Scarpa's Assistant Iain Mitchell as Cicco Simon Gregor as Moses the Jew Jack Farthing as Botticelli David Blackwell as Teenaged Miner Jack Baggs as Young Miner Wyn Bowen Jones as Rotund Miner James Peake as Miner Gareth Milton as Servant
