David Morrissey Stephen Collins Actor John Simm Cal McCaffrey Actor Kelly Macdonald Della Smith Actor Bill Nighy Cameron Foster Actor Polly Walker Anne Collins Actor James McAvoy Dan Foster Actor Philip Glenister DCI William Bell Actor Marc Warren Dominic Foy Actor James Laurenson George Fergus Actor Amelia Bullmore Helen Preger Actor Benedict Wong Pete Cheng Actor Sean Gilder Sergeant "Chewy" Cheweski Actor Deborah Findlay Greer Thornton Actor Rory McCann DI Stuart Brown Actor David Yates Director Paul Abbott Writer