- Writer:
- Gerald Kelsey
- Series created by:
- Ted Willis
- Film cameraman:
- Peter Hamilton
- Film editor:
- Jim Latham
- Designer:
- Geoff Kirkland
- Director:
- Robin Nash
- Production:
- Ronald Marsh
- P.C. George Dixon:
- Jack Warner
- Frank Reed:
- Barry Halliday
- Ray Striker:
- Anthony Colby
- Mary Crawford:
- Jeannette Hutchinson
- Det-Sgt Andy Crawford:
- Peter Byrne
- Mrs Carter:
- Dandy Nichols
- Station Sgt Flint:
- Arthur Rigby
- Mr Woods:
- Roy Purcell
- Cadet Michael Bonnet:
- Paul Elliott
- Jill Holland:
- Sandra Blank
- Det-Con Lauderdale:
- Geoffrey Adams
- Norman Carter:
- Leonard Cracknell
- Marjorie Hillyer:
- Elizabeth Proud
- W.P. Sgt Freeman:
- Anne Ridler
- Jigger Leas:
- Reg Lye
- Geoff Withers:
- Mike Savage
- Pat Layton:
- Anne Brooks
- P.C. Wills:
- Nicholas Donnelly
- P.C. Jones:
- John Hughes
- Mrs Walcott:
- Gretchen Franklin
- W.P.C. Alex Johns:
- John Miller
- Mrs Phillips:
- Barbara Leake
- Superintendent:
- Robert Raglan
- Hospital porter:
- Dennis Handby
