Guest Stars Alison O'Donnell as DI Alison "Tosh" McIntosh Steven Robertson as DC Sandy Wilson Lewis Howden as Sgt Billy McCabe Anne Kidd as Cora McLean Mark Bonnar as Duncan Hunter Erin Armstrong as Cassie Perez Julie Graham as Rhona Kelly Marnie Baxter as Jenny Belshaw Saskia Reeves as Freya Galdie Sara Vickers as Leanne Randall Colette O'Neil as Bella Jack Greenlees as Craig Cooper Struan Rodger as Alec Jamie Michie as Lowrie Kate Donnelly as Grace Ciarán Hinds as Michael Maguire Bryan Larkin as Gunman Lewis Russell as Callum Peerie Benjamin Cawley as Edison Andrew Rothney as Robbie Morton Victoria Balnaves as Callum's Mother John-Paul Hurley as Davy Neville Michael Dylan as Martin the Hospital Porter Siu Hun Li as Ferry Chef
