David Wolstencroft Creator 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 Larry Lamb Guest Star Nicholas Jones Guest Star Joanna Horton Guest Star Hassani Shapi Guest Star John Castle Guest Star Derek Hutchinson Guest Star Roger Allam Guest Star Davood Ghadami Guest Star Steve Nicolson Guest Star Robert Glenister Guest Star Julian Simpson Director, Writer Andy Hay Director Omar Madha Director Kenny Glenaan Director Ben Richards Writer Raymond Khoury Writer Julian Holmes Director David Farr Writer Zinnie Harris Writer Simon Crawford-Collins Executive Producer Neil Cross Writer Jane Featherstone Executive Producer