Guest Stars Benedict Wong as Pete Cheng Philip Glenister as DCI William Bell Amelia Bullmore as Helen Preger Rebekah Staton as Liz Marc Warren as Dominic Foy James McAvoy as Dan Foster Johann Myers as Sonny Stagg Michael Feast as Andrew Wilson Deborah Findlay as Greer Thornton Tom Burke as Syd James Laurenson as George Fergus Maureen Hibbert as Olicia Stagg Christopher Simpson as Adam Greene Sean Gilder as Sergeant 'Chewy' Cheweski Rebecca Ryan as Karen Collins Shauna MacDonald as Sonia Baker Charlie Ryan as Louis Collins Stuart Goodwin as Robert Bingham Pui Fan Lee as Joy Cipriani Natasha Wightman as Sheena Gough Nick Brimble as Dept. Chief Constable Janson Peter Sullivan as Stephen's Lawyer Cara Kelly as Della's Double Simon Hoggart as Journalist Andy Linden as Hotel Receptionist Matt Hickey as Arty Neighbour