- Writer:
- James Warren
- Producer:
- Campbell Logan
- Settings:
- Richard Wilmot
- Police Sergeant Price:
- John Baker
- Detective-Sergeant Jimmy Blake, C.I.D.:
- Ewan Roberts
- John Marten:
- Thomas Moore
- Sonia Marten:
- Margaret McCourt
- Charley Delaney:
- Hugh Griffith
- Doris Delaney:
- Olga Lindo
- Margaret Bell:
- Jessie Evans
- Dr. Harold Scott:
- Sidney Monckton
- Other parts played by:
- Jennifer Beech
- Other parts played by:
- Patricia Belcher
- Other parts played by:
- Pamela Cross
- Other parts played by:
- Norma Dale
- Other parts played by:
- Larry Dann
- Other parts played by:
- Barry Davey
- Other parts played by:
- Raymond Edmonds
- Other parts played by:
- John Ireland
- Other parts played by:
- Janet Lee
- Other parts played by:
- Marcia Manolescue