Ashley Jensen DI Ruth Calder Actor Alison O'Donnell DI 'Tosh' McIntosh Actor Steven Robertson DC Sandy Wilson Actor Lewis Howden Sgt Billy McCabe Actor Anne Kidd Cora McLean Actor Steven Miller Rev. Alan Calder Actor Samuel Anderson Matt Blake Actor Conor McCarry PC Alex Grant Actor Eubha Akilade PC Lorna Burns Actor Greg McHugh Colin Waite Actor Stuart Townsend Ed Tulloch Actor Louise Brealey Isobel Jameson Actor Niall Macgregor Tom Jameson Actor Saskia Ashdown Hayley Burnett Actor Gabriel Akuwudike Chris Burnett Actor Adam McNamara Lewis Mitchell Actor Joanne Thomson Amy Shannon Actor Lewis MacDougall Ethan Stone Actor Rory Adam Keith Sinclair Actor Leigh Biagi Morag McCabe Actor Colin MacDougall Paramedic Freddie Actor Phil Mulryne Writer Paul Logue Writer, Executive Producer Louise V Say Producer Ruth Paxton Director Kate Bartlett Executive Producer Gaynor Holmes Executive Producer Denise Paul Executive Producer