Guest Stars Alison O'Donnell as DS 'Tosh' MacIntosh Steven Robertson as DC Sandy Wilson Lewis Howden as Sgt Billy McCabe Mark Bonnar as Duncan Hunter Erin Armstrong as Cassie Perez Julie Graham as Rhona Kelly Marnie Baxter as Jenny Belshaw Archie Panjabi as Asha Israni Saskia Reeves as Freya Galdie Sara Vickers as Leanne Randall Colette O'Neil as Bella James Cosmo as Arthur McCall Anna Chancellor as Phyllis Brennan Jack Greenlees as Craig Cooper Struan Rodger as Alec Kate Donnelly as Grace Ace Bhatti as Calvin Sarwar Mark Cox as Tommy Monro Brandon Scott as Logan Kevin Mains as DS Iain Boyd Bryan Larkin as Gunman Georgina Simpson as Marnie Reanne Farley as Chrissie Gavin Jon Wright as Brian McDade Keith Williamson as Sheep Farmer Jamie McQueen as Magnus Farley Lachlan McQuen as Kyle Farley Iain Clark as Man at Airport Ria Moncrieff as Airline rep