- Writer:
- Ted Willis
- Designer:
- Richard Wilmot
- Production:
- Douglas Moodie
- P.C. George Dixon:
- Jack Warner
- Sergeant Flint:
- Arthur Rigby
- P.C. Lauderdale:
- Geoffrey Adams
- Miss Elrick:
- Dorothy Turner
- Sgt. Grace Millard:
- Moira Mannion
- Mrs. Soames:
- Irene Richmond
- Andy Crawford, C.I.D.:
- Peter Byrne
- Mary:
- Jeannette Hutchinson
- P.C. Hughes:
- Graham Ashley
- Cadet Jamie MacPherson:
- David Webster
- W.P.C. Jean Bond:
- Jill Hyem
- W.P.C. Vera Croxley:
- Ganith Billington
- Mr. Bodley:
- Noel Howlett
- Superintendent:
- Robert Raglan
