Guest Stars Alison O'Donnell as DI Alison "Tosh" McIntosh Steven Robertson as DC Sandy Wilson Mark Bonnar as Duncan Hunter Anne Kidd as Cora McLean Erin Armstrong as Cassie Perez Julie Graham as Rhona Kelly Stewart Porter as Sgt Billy McBride Finn Den Hertog as Drew Anthony Flanagan as Ewan Frances Grey as Jess Collins Brian Cox as Magnus Bain Tunji Kasim as Hugo Scott Chris Reilly as Alan Isbister Rebecca Benson as Sally Henry Cara Kelly as Margaret Henry Sophia Carr-Gomm as Catherine Ross Gowan Calder as Solicitor Freya Monk as Kitty Collins Jana Reinermann as Gret Matthew Zajac as Alex Henry
