- Writer:
- Gerald Kelsey
- Series created by:
- Ted Willis
- Film cameraman:
- Tony Leggo
- Film editor:
- Jim Latham
- Designer:
- Stewart Marshall
- Director:
- Robin Nash
- Production:
- Ronald Marsh
- P.C. George Dixon:
- Jack Warner
- Mary Crawford:
- Jeannette Hutchinson
- Det-Sgt Andy Crawford:
- Peter Byrne
- Det-Constable Lauderdale:
- Geoffrey Adams
- Sergeant Flint:
- Arthur Rigby
- Cadet Michael Bonnet:
- Paul Elliott
- Mrs Porter:
- Anna Wing
- Lennie Porter:
- David Rosen
- W.P. Sgt Freeman:
- Anne Ridler
- Spokey Wheeler:
- Paul Curran
- Cliff Firth:
- Harry Walker
- P.C. Jones:
- John Hughes
- Police Mechanic:
- Nigel Sharpe
- Mrs Firth:
- Miriam Raymond
- Frank Hunter:
- David Lander
- Nobby Clark:
- Kenneth Watson
- Joe:
- Michael Earl
- W.P.C. Alex Johns:
- Jan Miller
