Guest Stars Steven Robertson as DC Sandy Wilson Alison O'Donnell as DS 'Tosh' MacIntosh Lewis Howden as Sgt Billy McCabe Erin Armstrong as Cassie Perez Anne Kidd as Cora McLean Julie Graham as Rhona Kelly Marnie Baxter as Jenny Belshaw Archie Panjabi as Asha Israni Sara Vickers as Leanne Randall Saskia Reeves as Freya Galdie Colette O'Neil as Bella James Cosmo as Arthur McCall Anna Chancellor as Phyllis Brennan Jack Greenlees as Craig Cooper Ciarán Hinds as Michael Maguire Brandon Scott as Logan Mark Cox as Tommy Monro Edward M Corrie as Ben Brennan Benjamin Cawley as Edison John Stahl as Eric the Boatman Barbara Rafferty as Alice Crispin Letts as Headmaster Caroline Guthrie as Mrs. Whelan Paul Donnelly as Arthur's Heavy Finlay Welsh as George Liam Brennan as Mike Brennan Fletcher Mathers as Bridal Shop Owner