Guest Stars Alun Armstrong as Det Supt Frank Burroughs Keith Allen as Det Supt Alan Horsefell Keith Barron as Cmdr Jack Bentham Guy Williams as Laurence Payne Robert Blythe as Chief Inspector Price Shirley King as Muriel Dumont (PCA) Richard Lynch as PC Peters Ian Rowlands as PC Pratley Jenny Downham as Jane Whitehouse Alan Devlin as Sir Rex Ferriday (MI6) Clyde Pollitt as Dep Chief Constable Donald Preece Brinley Jenkins as Chief Constable Maurice Probert Gillian Eaton as Maureen Fry Mike Hayward as Supt Williams Tom Marshall as Det Insp Bill Senior Dudley Sutton as Deputy Commissioner Sir Harry Streeter Derek Hutchinson as Sgt. Keeper Roger Brierley as Julian Brind David Ryall as Sir Cyril Llewellyn (DPP) Martin Troakes as Chief Superintendent Jones
