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 Hugo Weaving Frank Harkness Actor Joanna Scanlan Moira Tregorian Guest Star Lucian Msamati Oliver Nash Guest Star Kyle Soller Jim Guest Star MyAnna Buring Jane Guest Star Ruth Bradley Emma Flyte Guest Star Harry Lloyd Damien Cantor Guest Star Paul Higgins Struan Loy Guest Star Hamish Riddle Agent 2 Guest Star Bally Gill Agent Singh Guest Star Melissa Parker Agent Cassie Guest Star Racheal Ofori Agent Ofili Guest Star Harry Greenwood Bruno Guest Star Richard Freeman Vicar Guest Star Tom Brooke JK Coe, Agent 1 Guest Star, Guest Star 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