Guest Stars Phoebe McKellar as Tilly Gardiner Alexander Walker as Joe Turner Michelle Langstone as Charlotte McCrae Nathalie Morris as Emma Ryder Phil Brown as Mark 'Haggis' McCrae Jared Turner as Rob Ryder Jim Moriarty as Maaka Richardson Arlo Green as Orlando Smythe Hester Ullyart as Rosa Burns Maëlys-Lily Foote as Lily Bennett Matthew Chamberlain as DI David Preston Susan Brady as Hannah Turner Simon Ferry as Jason Bennett Oban Hansen as David Bennett