| Cast list | | Peter Ustinov | as | Hercule Poirot | | Jane Birkin | as | Louise Bourget | | Lois Chiles | as | Linnet Ridgeway Doyle | | Bette Davis | as | Marie Van Schuyler | | Mia Farrow | as | Jacqueline De Bellefort | | Jon Finch | as | James Ferguson | | Olivia Hussey | as | Rosalie Otterbourne | | George Kennedy | as | Andrew Pennington | | Angela Lansbury | as | Salome Otterbourne | | Simon MacCorkindale | as | Simon Doyle | | David Niven | as | Colonel Johnny Race | | Maggie Smith | as | Miss Bowers | | Jack Warden | as | Doctor Ludwig Bessner | | Harry Andrews | as | Barnstable | | I.S. Johar | as | Manager of The Karnak |
| | Crew list: | | John Guillermin (Director) | | Agatha Christie (Writer) | | Anthony Shaffer (Writer) |
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