Guest Stars Ross McCall as Ron Clark Michelle Fairley as Margot Al-Harazi Stephen Fry as Prime Minister Alastair Davies Liam Garrigan as Ian Al-Harazi Emily Berrington as Simone Al-Harazi Adam Sinclair as Gavin Leonard Stanley Townsend as Anatol Stolnavich Alex Lanipekun as James Harman Shelley Conn as Helen McCarthy Amir Boutrous as Kareem Co Starring Branko Tomovic as Belcheck Aykut Hilmi as MI5 Agent Ben Dimmock as Bus Driver Daniel Hill as Hospital Surgeon