- Writer:
- Ted Willis
- Script associate:
- Fiona McConnell
- Designer:
- Austen Spriggs
- Producer:
- Douglas Moodie
- P.C. George Dixon:
- Jack Warner
- Sergeant Flint:
- Arthur Rigby
- Prob P.C. Jamie MacPherson:
- David Webster
- W.P. Sgt Scott (Scotty):
- Ruth Lodge
- W.P.C. Kay Shaw:
- Jocelyne Rhodes
- Det-Sgt Andy Crawford:
- Peter Byrne
- Peter Garrick:
- Peter Jesson
- Minnie:
- Ann Bassett
- Det -Con Jack Cotton:
- Michael Nightingale
- Mary:
- Jeannette Hutchinson
- P.C. Bush:
- Max Latimer
- P.C. Lauderdale:
- Geoffrey Adams
- P.C. Nash:
- Frank Peters
- P.C. Burton:
- Michael Lomax
- P.C. Watson:
- George Curtis
- Mrs Guard:
- Dandy Nichols
- Bert Ramsey:
- Will Stampe
- Mr Guard:
- Charles Lloyd Pack
- Dr Morgan:
- Michael Greenwood
- P.C. Joe Tufnell:
- Robert Russell
- Nick Woodward:
- Gordon Waine
- Geoff Bastin:
- James Beck
- Miss Lewis:
- Kathleen Saintsbury
