- Writer:
- Duncan Ross
- Music composed by:
- Tristram Cary
- Film cameraman:
- Peter Sargent
- Film editor:
- Pam Bosworth
- Designer:
- Fanny Taylor
- Producer/Director:
- Christopher Barry
- Sergeant Rose:
- Manning Wilson
- Det Chief Supt Gage:
- Cyril Luckham
- Vallins:
- Rio Fanning
- Hawkins:
- Peter Thomas
- John:
- Richard Armour
- Patrick:
- John Kelly
- Trev:
- Patrick Troughton
- Ian Lambart:
- William Franklyn
- Pat Penmore:
- Caroline Blakiston
- Kitty:
- Freda Bamford
- Emma Cresswell:
- Lana Morris
- Shop assistant:
- Arthur R. Webb
- Mr Cook:
- Brian Badcoe
- Trelawney:
- Tommy Duggan
- Mary:
- Armine Sandford
- Police Sergeant:
- Norman Mitchell
- Policeman:
- Clifford Cox
- Chief Constable:
- Patrick Whyte
- Plain clothes man:
- Denis Cleary
