Cast principale
Keith Barron
Commander Jack Bentham
Alun Armstrong
Det. Supt. Frank Burroughs
Tom Marshall
Det. Insp. Bill Senior
Dudley Sutton
Dep. Commissioner Sir Harry Streeter
Gillian Eaton
Maureen Fry
Keith Allen
Det. Supt. Alan Horsefell
Brinley Jenkins
Chief Constable Maurice Probert
Clyde Pollitt
Dep. Chief Constable Donald Preece