Simon Doyle is the secondary antagonist of Dame Agatha Christie's Death on the Nile and its adaptations, being the direct killer of Linnet Doyle, who is the first and primary victim of the case.


  • In the 1978 film adpatation, he was portrayed by the late Simon MacCorkindale.
  • In the 2004 adapation included in ITV's series, Agatha Christie's Poirot, he was portrayed by JJ Feild.
  • In the upcoming 2020 film adaptation, he will be portrayed by Armie Hammer, who also voiced Jackson Storm in Cars 3.



Simon Doyle was the ex-lover of Jacqueline de Bellefort and was later married to the latter's former best friend, Linnet Doyle, after she stole him from Jacqueline. Nevertheless, Simon was revealed to be still in love with Jacqueline and hated Linnet for parting them. As a result, Simon joined Jacqueline's vengeful scheme to kill off Linnet and steal her fortune, first through staging their break-up and then through murder attempts.


On the night of the murder, Jacqueline's shot deliberately missed Simon, who faked his injury with red ink. While everyone in the lounge was distracted by Jacqueline, he took her gun that she had deliberately discarded, went to Linnet's cabin, and shot her. He then returned to the lounge and shot his own leg, to give himself a genuine injury.

However, his action was witnessed by Louise Bourget, the maid of Linnet, who used it to blackmail Simon. Louise's action soon got herself killed by Jacqueline, an act witnessed by Mrs. Otterbourne who was murdered again by Jacqueline before she could warn Poirot.


At the climax of the story, Poirot stayed alone with Simon and revealed what led him to his theory: the ink was contained in a bottle of nail polish he noticed in Linnet's cabin. Simon reloaded the gun with two spare cartridges before he disposed of it, as Poirot realized that three shots were fired that night; the stole was used to silence the gun when Simon shot his own leg.

Poirot suspected premeditation for the murder, because he slept deeply through that night's events – he had been drugged through his wine that evening. After the revealtion, both Simon and Jacqueline admitted their deeds.

The next day, as the cruise reached Cairo, Jacqueline shoots Simon and herself dead with another gun she possessed, so they may escape the gallows. Poirot knew Jacqueline had a second gun all along, but allowed her to commit murder-suicide out of sympathy towards them.


Agatha Christie's Poirot (title card) Villains

Alfred Inglethorp | Evelyn Howard | Marthe Daubreuil | Jane Wilkinson | Claude Darrell | Lanfranco Cassetti | Sir Charles Cartwright | Norman Gale | Dr. Geoffrey Roberts | Franklin Clarke | Bella Tanios | Nurse Harris | Jacqueline de Bellefort | Simon Doyle | Lady Westholme | Superintendent Sugden | Jessie Hopkins | Martin Alistair Blunt | Patrick Redfern | Elsa Greer | Miss Gilchrist | Marrascaud | Nigel Chapman | Ann Shapland | Gerda Christow | Dr. James Sheppard | Rowena Drake | Nick Buckley | Michael Garfield | Stephen Norton

Villainous Victims
Grace Springer | Henry Reedburn | Harrington Pace | Lady Boynton | Lanfranco Cassetti | Leopold Reynolds | Leslie Ferrier | Linnet Doyle | Lord Edgware | Louise Bourget | Madame Giselle | Mary Gerard | Mrs. Clapperton | Paul Déroulard | Paul Renauld | Simeon Lee | Sir Reuben Astwell | Stephen Norton

Anne Meredith | Alice Cunningham | Big Four | Countess Vera Rosakoff | Miss Van Schuyler

TV Series Only
David Hunter | Dr. Gerard | Rohda Dawes

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