Guest Stars James Clack as Young Martin Jake Curran as Padraig Pearse O'leary Izabella Urbanowicz as Rosie Demarczyk Françis Renaud as Paul Capoue Nathaniel Spender as Young Jean Maxime Lefrançois as Romain Sam Mackay as Denny Damien Taranto as Nico Andrew Havill as Andrew St. John-Payne Marcus Taylor as Cassidy