BBC Radio 4 did a full cast adaptation of the novel in 2006. Dramatist: Michael Bakewell. Music: Tom Small. Producer/Director: Enyd Williams.
Cast
- John Moffatt as Hercule Poirot
- Simon Williams as Arthur Hastings
- Joanna David as Miss Lawson
- Tracy Wiles as Theresa Arundell
- Ifan Meredith as Charles Arundell
- Elizabeth Proud as Ellen
- Rosalind Knight as Miss Peabody
- Sam Dale as Dr Grainger
- Richard Beadsmoore as Bob the dog