- Writer:
- N. J. Crisp
- Series creator:
- Ted Willis
- Designer:
- Austen Spriggs
- Director:
- David Askey
- Production:
- Ronald Marsh
- George Dixon:
- Jack Warner
- Station Sgt. Flint:
- Arthur Rigby
- Lady in Station:
- Madge Brindley
- Mary Crawford:
- Anna Dawson
- Kay Lauderdale:
- Jocelyne Rhodes
- Det -Sgt. Andy Crawford:
- Peter Byrne
- P.C. Roberts:
- Geoffrey Kenion
- Plummer:
- Duncan Lamont
- P.C. Swain:
- Robert Arnold
- Dr. Hammond:
- Robert Bruce
- Det -Con. Lauderdale:
- Geoffrey Adams
- Marshall:
- John Rolfe
- Kilford:
- Louis Hasler
- Sgt. Watson:
- Edward Dentith
- Miss Lucas:
- Jeanne Mockford
- Mrs. Pike:
- Frieda Knorr
- Jim Pike:
- Glyn Edwards
- Charlie Dymott:
- Anthony Wager
- Davis:
- Peter Bayliss
- Kemp:
- Denis Cleary
- W.P.C. Shirley Palmer:
- Anne Carroll
- W.P.C. Liz Harris:
- Zeph Gladstone
