- Writer:
- Ted Willis
- Designer:
- Richard Wilmot
- Production:
- Douglas Moodie
- P.C. George Dixon:
- Jack Warner
- P.C. Lauderdale:
- Geoffrey Adams
- Solly Pike:
- Sydney Keith
- Ellie Martin:
- Diane Clare
- Andy Crawford, C.I.D.:
- Peter Byrne
- Mary:
- Jeannette Hutchinson
- Sergeant Grace Millard:
- Moira Mannion
- Sister McKerchar:
- Betty Cardno
- Sergeant Flint:
- Arthur Rigby
- Cadet Jamie MacPherson:
- David Webster
- P.C. Hughes:
- Graham Ashley
- Janice Wilson:
- Marion Collins
- Mrs. Allard:
- Joyce Donaldson
- Mr. Martin:
- Jack Holloway
