Guest Stars Jack Deam as DC Ken Blackstone Danny Rahim as DC Tariq Lang Nicholas Sidi as CS Ron McLaughlin Lily Loveless as Tracy Banks Ray Panthaki as Jaff Kitson Kate Bracken as Constable Alice Craig Philip Jackson as Al Jenkins Chris Webster as Richard Martin Robert Cavanah as Supt Mike Trethowan Paul Brightwell as Chief Supt Reg Chambers Syrus Lowe as Constable Mark Warburton Andy Barnes as Constable Gemmill Tom Padley as Mitchell Channing Rebecca Ryan as Erin Doyle Melanie Kilburn as Juliet Doyle William Ilkley as Peter Doyle Graham Cheadle as Businessman Guy Hepworth as Ballistic Expert