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 James Dicker Actor Tim McInnerny Guest Star Jonathan Barlow Guest Star Kenny Glenaan Director Zinnie Harris Writer Simon Crawford-Collins Executive Producer Jane Featherstone Executive Producer