- Unknown:
- Agatha Christie
- Dramatised By:
- Tr Bowen
- Producer:
- George Gallaccio
- Director:
- Julian Arnyes
- Miss Marple:
- Joan Hickson
- Rev Leonard Clement:
- Paul Eddington
- Griselda Clement:
- Cheryl Campbell
- Col Lucius Protheroe:
- Robert Lang
- Ann Protheroe:
- Polly Adams
- Lettice Protheroe:
- Tara MacGowran
- Lawrence Redding:
- James Hazeldine
- Christopher Hawes:
- Christopher Good
- Mrs Lestrange:
- Norma West
- Dr Haydock:
- Michael Browning
- Det Insp Slack:
- David Horovitcn
- Det Sergeant Lake:
- Ian Brimble
- Bill Archer:
- Jack Galloway
- Mary Wright:
- Rachel Weaver
- Mrs Price-Ridley:
- Rosalie Crutchley
- Miss Hartnell:
- Barbara Hick-J
- Miss Wetherby:
- Kathleen Bidmead
- Mrs Salisbury:
- Debbie Davies
- Fred Abbot:
- Tony Brandon
