Guest Stars Jason Watkins as Simon Duke Sunetra Sarker as DCI Jane Burr Stephen Lord as Luke Griffin Ashley Walters as John Channing Sacha Parkinson as Dani Delaney Joel MacCormack as Liam Duke Gary Cargill as DI Olly Vedder Dervla Kirwan as Elizabeth Ellroy Andrew Tiernan as Roger Lane Phil Rowson as MacBride Charlie Kelly as Craig Kevin Harvey as Sgt Bill Rudd Lynsey McLaren as Julie Delaney