Guest Stars Gregory Piper as Ryan Pilkington Aiysha Hart as DS Sam Railston Polly Walker as Gill Biggeloe Tomi May as Miroslav Minkowicz Tony Pitts as DCS Lester Hargreaves Andrea Irvine as Roisin Hastings Taj Atwal as PC Tatleen Sohota Rochenda Sandall as Lisa McQueen Patrick Fitzsymons as DCI Mark Moffatt Richard Pepple as PS Kyle Ferringham Orla Mullan as Detective Natalia Kostrzewa as Interpreter Lena Kowalska Richard Sutton as PC Kieran Bloom Caroline Lumiere Koziol as Mariana Niemec