Peter Firth Harry Pearce Actor Hugh Simon Malcolm Wynn-Jones Actor Nicola Walker Ruth Evershed Actor Rupert Penry-Jones Adam Carter Actor Rory MacGregor Colin Wells Actor Olga Sosnovska Fiona Carter Actor Raza Jaffrey Zafar Younis Actor Anna Chancellor Juliet Shaw Actor Miranda Raison Jo Portman Actor James Dicker Wesley Carter Actor William Oxborrow Freddy Frost Guest Star George Baker Hugo Ross Guest Star Phyllis Logan Diana Jewell Guest Star Jo McInnes Sally Curtis Guest Star Ben Daniels Oleg Korsakov Guest Star David Fleeshman Oleg Korsakov Guest Star Omar Madha Director Howard Brenton Writer Simon Crawford-Collins Executive Producer Jane Featherstone Executive Producer Lucy Richer Executive Producer Julie Scott Executive Producer