Gary Oldman Jackson Lamb Actor Kristin Scott Thomas Diana Taverner Actor Jack Lowden River Cartwright Actor Saskia Reeves Catherine Standish Actor Rosalind Eleazar Louisa Guy Actor Christopher Chung Roddy Ho Actor Samuel West Peter Judd Actor Aimee-Ffion Edwards Shirley Dander Actor Jonathan Pryce David Cartwright Actor Graham Yost Executive Producer James Hawes Executive Producer Will Smith Executive Producer Douglas Urbanski Executive Producer Gail Mutrux Executive Producer Iain Canning Executive Producer Emile Sherman Executive Producer Jamie Laurenson Executive Producer Hakan Kousetta Executive Producer