- Writer:
- Ted Willis
- Designer:
- Stanley Morris
- Production:
- Douglas Moodie
- P.C. George Dixon:
- Jack Warner
- Sergeant Flint:
- Arthur Rigby
- P.C. Lauderdale:
- Geoffrey Adams
- Cadet Jamie MacPherson:
- David Webster
- Joe Sharpe:
- Frank Sieman
- Ellen Sharpe:
- Rose Power
- Harry Smith:
- Christopher Hodge
- P.C. Hughes:
- Graham Ashley
- Superintendent:
- Robert Raglan
- Sergeant Chivers:
- Brian Rawlinson
- Captain Whitby:
- Frank Hickey
- Lieutenant Burns:
- David Cole
- Duffy Clayton:
- Harold Scott
- Boxie:
- Violet Gould
- Hobbs:
- John Boxer
- Sergeant Grace Millard:
- Moira Mannion
- Mary:
- Jeannette Hutchinson
- Andy Crawford, C.I.D.:
- Peter Byrne
- Terry:
- Anthony Wilson
