Peter Firth Harry Pearce Actor Hugh Simon Actor Nicola Walker Ruth Evershed Actor Rupert Penry-Jones Adam Carter Actor Miranda Raison Jo Portman Actor Hermione Norris Ros Myers Actor Raza Jaffrey Zafar Younis Actor Anna Chancellor Juliet Shaw Actor Gugu Mbatha-Raw Actor Rory MacGregor Guest Star James Dicker Actor Nicholas Jones Guest Star Lindsay Duncan Guest Star John Castle Guest Star Roger Allam Guest Star Alan McKenna Guest Star Steve Nicolson Guest Star Roger Ringrose Guest Star Robert Glenister Guest Star Omar Madha Director Ben Richards Writer Simon Crawford-Collins Executive Producer Jane Featherstone Executive Producer