- Writer:
- Ted Willis
- Designer:
- Norman James
- Production:
- Douglas Moodie
- P.C. George Dixon:
- Jack Warner
- Sergeant Flint:
- Arthur Rigby
- P.C. Lauderdale:
- Geoffrey Adams
- W.P.C. Kay Shaw:
- Jocelyne Rhodes
- Nancy:
- Dorothy Casey
- Gertie Griffin:
- Madge Brindley
- Cadet Jamie MacPherson:
- David Webster
- Charles Wigram:
- Jack Allen
- Paul Wigram:
- Wensley Pithey
- Sergeant Grace Millard:
- Moira Mannion
- Jennie Wren:
- Hilda Fenemore
- Det-Sgt Andy Crawford:
- Peter Byrne
- Det-Con Tommy Hughes:
- Graham Ashley
- Mollie:
- Barbara Keogh
- Will Bingham:
- George Betton
- Dr Glenn:
- Richard Burrell
