Sotiris Nikias Creator, Co-Executive Producer Sophie Turner Zara Actor Jacob Fortune-Lloyd DCI Rhys Actor Archie Madekwe Luke Actor Andrew Howard Sniper Actor Ellie James DI Ellie Lloyd Actor Jonathan Slinger London Actor Harry Michell Milo Carter-Walsh Actor Thomas Larkin Wayne Actor Tara Summers Sophia Actor Sarah Belcher Kate Shaw Actor Hettie MacDonald Director Sam Miller Director, Executive Producer Greg Brenmane Executive Producer Rebecca De Souza Executive Producer Nuala O'Leary Producer Vivien Kenny Producer David Wade Line Producer Martin Phipps Original Music