Guest Stars Rachael Stirling as Zoë Kenneth Ian McNeice as Reverend King Deborah Findlay as Lady Hugh Matthew Marsh as Henry McEwen Chiké Okonkwo as Jonjo Read Gillian Bevan as Sadie McEwen Bruce MacKinnon as Conan Jones Kate Miles as Nova Rose David Ryall as Mr. Cooper Oliver Milburn as Charlie Newton Michael Pennington as Dr. Melville Philip Battley as Will McEwen Uncredited Colin Dexter as Man at Merton College Entrance