Guest Stars Jason Watkins as Simon Duke Sunetra Sarker as DCI Jane Burr Sacha Parkinson as Dani Delaney Stephen Lord as Luke Griffin Ashley Walters as John Channing Joel MacCormack as Liam Duke Gary Cargill as DI Olly Vedder Dervla Kirwan as Elizabeth Ellroy Phil Rowson as MacBride Charlie Kelly as Craig Lynsey McLaren as Julie Delaney Grahame Fox as Prisoner