Peter Firth Harry Pearce Actor Hugh Simon Actor Nicola Walker Ruth Evershed Actor Rupert Penry-Jones Adam Carter Actor Rory MacGregor Actor Olga Sosnovska Fiona Carter Actor Raza Jaffrey Zafar Younis Actor Anna Chancellor Juliet Shaw Actor Miranda Raison Jo Portman Actor James Dicker Actor Debra Gillett Debra Langham Guest Star Margot Leicester Auntie May Guest Star William Armstrong Guest Star Gerald Lepkowski Guest Star Darrell D'Silva Farook Sukkarieh Guest Star Jimi Mistry Nazim Malik Guest Star Jo McInnes Sally Curtis Guest Star David Threlfall Keith Moran Guest Star Rupert Graves William Sampson Guest Star Ben Daniels Oleg Korsakov Guest Star Julian Simpson Director Omar Madha Director Jeremy Lovering Director Antonia Bird Director Alrick Riley Director Howard Brenton Writer Ben Richards Writer Raymond Khoury Writer Rupert Walters Writer David Farr Writer Simon Crawford-Collins Executive Producer Jane Featherstone Executive Producer Lucy Richer Executive Producer Julie Scott Executive Producer David Wolstencroft Director