- Writer:
- Eric Paice
- Series created by:
- Ted Willis
- Film cameraman:
- Tony Leggo
- Film Cameraman:
- Peter Sargent
- Film Editor:
- Jim Latham
- Designer:
- Austen Spriggs
- Producer:
- Ronald Marsh
- P.C. George Dixon:
- Jack Warner
- Mrs. Rogers:
- Kathleen St John
- Det.-Sgt Andy Crawford:
- Peter Byrne
- Det.-Insp Cherry:
- Robert Cawdron
- Det.-Con Lauderdale:
- Geoffrey Adams
- W.P.C. Alex Johns:
- Jan Miller
- W.P. Sgt Chris Freeman:
- Anne Ridler
- Station Sgt Flint:
- Arthur Rigby
- Benny Smith:
- Peter Glaze
- P.C. Jones:
- John Hughes
- Cadet Bonnet:
- Paul Elliott
- Mary Crawford:
- Jeannette Hutchinson
- Kay Lauderdale:
- Jocelyne Rhodes
- P.C. Wills:
- Nicholas Donnelly
- Jack Mullen:
- Patrick Magee
- Mr. Arkwright:
- Ray Mort
- Shirley:
- Gloria Salvador
- Jean:
- Veronica Page
- Harry Pegg:
- Sam Kydd
- Gus Kingshott:
- Michael Barrington
- Bill Henderson:
- Hal Galili
- P.C. Smith:
- Terence Rigby
