First broadcast 2nd January 2000.

Poirot reminisces about an older case in which Roger Ackroyd, the elderly, stingy millionaire disliked by many, was found murdered in cold blood – a second unnatural death in the village of King's Abbot in the past few months.

David Suchet as Hercule Poirot
Philip Jackson as Chief Inspector Japp
Oliver Ford Davies as Dr. Sheppard
Selina Cadell as Caroline Sheppard
Roger Frost as Parker
Malcolm Terris as Roger Ackroyd
Nigel Cooke as Geoffrey Raymond
Daisy Beaumont as Ursula Bourne
Flora Montgomery as Flora Ackroyd
Vivien Heilbron as Mrs. Ackroyd
Gregor Truter as Inspector Davis
Jamie Bamber as Ralph Paton
Charles Early as Constable Jones
Rosalind Bailey as Mrs. Ferrars
Charles Simon as Hammond
Graham Chinn as Landlord
Clive Brunt as Naval petty officer
Alice Hart as Mary
Philip Wrigley as Postman
Phil Atkinson as Ted
Elizabeth Kettle as Mrs. Folliott