"Part One: Their Finest Hour", Closing Theme by Matt Fitton , John Dorney , Paul McGann , Nicola Walker , Sarah Lambie , Beth Chalmers , Pippa Bennett-Warner , Tracy Wiles , Mark Bonnar , Judith Roddy , Gyuri Sarossy , Beth Goddard , Ian McNeice , Charlie Condou , Nicholas Rowe , Jane Booker , Roger May , Hattie Morahan , Amerjit Deu , Laurence Dobiesz & Christopher Ryan