Thirteen at Dinner is a 1985 American-British television film featuring the Belgian detective Hercule Poirot. Adapted from the Agatha Christie novel Lord Edgware Dies by Rod Browning it was directed by Lou Antonio and starred Peter Ustinov, Faye Dunaway, Jonathan Cecil, Diane Keen and Bill Nighy. David Suchet, later to play Poirot in the long-running television series entitled Agatha Christie's Poirot, played the role of Inspector Japp. Suchet considers his performance as Japp to be "possibly the worst performance of [his] career."
- Peter Ustinov as Hercule Poirot
- Faye Dunaway as Jane Wilkinson / Carlotta Adams
- Jonathan Cecil as Arthur Hastings
- Bill Nighy as Ronald Marsh
- Diane Keen as Jenny Driver
- John Stride as Film Director
- Benedict Taylor as Donald Ross
- Lee Horsley as Bryan Martin
- Allan Cuthbertson as Sir Montague Corner
- John Barron as Lord George Edgware
- Lesley Dunlop as Alice Bennett
- Avril Elgar as Miss Carroll
- Amanda Pays as Geraldine Marsh
- John Quarmby as Sir Montague's Butler
- Pamela Salem as Mrs. Wildburn
- Lou Antonio as Movie Producer
- David Frost as Himself
- David Suchet as Inspector James Japp
- During a break, one day, Ustinov told Suchet, "You could play Poirot, you know, and you would be very good at it".
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