- Writer:
- N.J. Crisp
- Series created by:
- Ted Willis
- Design:
- Austen Spriggs
- Director:
- Vere Lorrimer
- Production:
- Ronald Marsh
- George Dixon:
- Jack Warner
- Det.-Sgt. Andy Crawford:
- Peter Byrne
- Gower:
- Richard Owens
- Boy:
- Gareth Robinson
- Ania:
- Ania Marson
- Boyd:
- Denis Cleary
- Sgt. Wills:
- Nicholas Donnelly
- Benny:
- Graham Weston
- W.D.C. Ann Foster:
- Pamela Buchner
- Det.-Con. Lauderdale:
- Geoffrey Adams
- Mrs. Green:
- Nadja Regin
- Wally Green:
- Sam Kydd
- Major Powell:
- Tony Steedman
- Miss Bray:
- Philippa Urquhart
- P.C. Swain:
- Robert Arnold
- P.C. Turner:
- Andrew Bradford
- Det.-Con. Pearson:
- Joe Dunlop
- Man in car:
- Michael Beint
- Patrolman:
- Clifford Earl
- Garage attendant:
- Philip Ross