Guest Stars Vincent Regan as Dominic Carter Derek Riddell as Paul Brightman Daniel Ezra as Dan Johnson Tamara Lawrance as Clem Johnson Shannon Hayes as Ella Johnson Alistair Petrie as Robert Greenlaw Leanne Best as Abigail Strickland Mark Bonnar as John Halliday Ṣọpẹ́ Dìrísù as Michael Antwi Sam Stockman as PC Rose Thomas Dominique as Big Ray Ian Peck as Peter Mackie Glyn Grimstead as Sgt. Douglas Trimble