Guest Stars Lloyd Owen as Det Supt Mitchell Shaun Parkes as Bennett Walker Kyle Soller as Marcus Chadwell Lyndsey Marshal as Sasha Blackburn Niamh Cusack as Sylvie Blake Karen Meagher as Diane Blackburn Richard Sutton as DI Jason Snow Stephen Kennedy as Ted Blake Tom Padley as Connor Blake Robert Whitelock as Oliver Bright Jane Leaney as Mandy Bright Harrison Stagg as Max Ben Adams as Charles Moore Bobby Pearse as Young Oliver