Guest Stars Jack Shepherd as Jim Thorne John Warman as Police Officer Sandra Oh as DS Sarah Chen Stephen Wight as Bardsley Joe Absolom as Stuart Nicklin Tom Brooke as Martin Palmer Lolita Chakrabarti as Seema Khera Estella Daniels as Karal Turay Tim Chipping as Surveillance Officer James Helder as Drug Dealing Bar Manager Elisha Willett as Detective Javed Khan as DC Dev Khan Dominik Golding as Delivery Guy Glyn Grimstead as Police Clerk Richard Upton as Scene of Crime Officer Dan Twine as Jonathan Harris Natalie Tapper as Marjorie Knight Brian Shaw as Detective Eliza Newman as Karen McMahon Richard Trinder as Financial Advisor Neil Kelly as Vic Perks Loula Kazantzi as Hotel Guest Harry Jarvis as Young Nicklin Leo Gregory as Sean Bracher William Wright-Neblett as Charlie Turay Helen Elizabeth as Receptionist Malcolm Davies as Surveillance Officer David Charles as Berger Mark Barrows as Officer Mitch Jaleh Alp as Jana Lovik Steph Bramwell as Jocelyn Evans Claire Benedict as Maeve Reynolds Freddie Annobil-Dodoo as Uniformed Copper Velibor Topic as Pavel Uncredited Ed Pearce as Bracher's Solicitor