Guest Stars Mark Bonnar as Piers Christie Adam James as Dr. Richard Fell Amanda Drew as DI Reid Lashana Lynch as Shona Benson Bill Ward as Hearns Freya Parker as Mary Smith Davood Ghadami as Ali Kolahi 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 Hasan Dixon as Jake Winter Andy Capie as Reporter Colin Tierney as Jeff Hart Danielle Lineker as Reporter