Guest Stars Benedict Wong as Pete Cheng Philip Glenister as DCI William Bell Rebekah Staton as Liz Amelia Bullmore as Helen Preger Marc Warren as Dominic Foy James McAvoy as Dan Foster Johann Myers as Sonny Stagg Tom Burke as Syd Christopher Simpson as Adam Greene Sean Gilder as Sergeant 'Chewy' Cheweski Patrick Brennan as Neil Woods Shauna MacDonald as Sonia Baker Michael Pennington as Richard Siegler Ofo Uhiara as Security Guard