Guest Stars Claudie Blakley as Louise Sutton Stephen Wight as DC Clive Grace Katie Lyons as DS Jo Brunt Steffan Rhodri as DC Neil Jones Nicholas Burns as DI Richard Ambrose Philip McGinley as DS Norman Griffths Cornelius Booth as DCI Dave Cobb Jay Taylor as DI Chris Saunders Steve Furst as DC Gary Cunningham James Puddephatt as DC Gary Fuller Peter Forbes as DCS Andy Murphy Celyn Jones as Levi Bellfield Co Starring Anna Burnett as Kat Sutton Russ Bain as Senior Surveillance Officer Christopher Fulford as DI Brian Marjoram Tracy Wiles as Monica Temi Wilkey as PC Olivia Evanson James Thorne as Surveillance Officer #1 Hannah Rae as Sarah Knight Jemima Woolnough as Tina Paul Casar as Geoff Barton Polly Dartford as Surveillance Officer #2 Lloyd Hutchinson as Bob Cox James Corrigan as Steve Uncredited Ty Hurley as CID