Guest Stars Mark Bonnar as Piers Christie Adam James as Dr. Richard Fell Amanda Drew as DI Reid Lashana Lynch as Shona Benson Davood Ghadami as Ali Kolahi Bill Ward as Hearns Freya Parker as Mary Smith Bryan Dick as Lucas Ballinger Ashley Chin as Mark Benson Bryony Afferson as Petra Smith Wendy Albiston as Stacey Greggs Alexander Newland as Flynn Deshaun Strong as Darius Benson Sammy Kissin as Ellisabet Vrinska Sean Jackson as Roper Colin Tierney as Jeff Hart Hasan Dixon as Jake Winter Andy Capie as Reporter Danielle Lineker as Reporter