Gary Oldman Jackson Lamb Actor Jack Lowden River Cartwright Actor Kristin Scott Thomas Diana Taverner Actor Graham Yost Executive Producer James Hawes Executive Producer, Director 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 Mark Denton Writer Jonny Stockwood Writer