| Mrs. | Allerton | Tim's mother. |
| Tim | Allerton | Joanna's 2nd cousin. Mrs. Allerton's son. |
| Carl | Bessner | A German doctor. Cornelia's
fiancé. |
| Gaston | Blondin | The proprietor of a restaurant called Chez Ma Tante. |
| Louise | Bourget | Linnet's maid. |
| Miss | Bowers | Marie's social companion. |
| Toby | Bryce | Melhuish's companion. |
| Mr. | Burnaby | The landlord of the Three Clowns. |
| William | Carmichael | Linnet's close friend. |
| Jacqueline | De Bellefort | Linnet's best friend. Aka: Jackie. |
| Devonshire | Doyle | Simon's ancestor. |
| Simon | Doyle | Jacqueline's fiancé. Linnet's husband. |
| Jim | Fanthorp | Carmichael's nephew. A lawyer. Aka: James Lechdale. |
| Mr. | Ferguson | A former lord. The man who loves Cornelia. |
| Leopard | Hartz | Linnet's rich grandfather. |
| Anna | Hartz-Ridgeway | Linnet's mother. |
| Mrs. | Leech | Mrs. Allerton's friend. |
| Rosalie | Otterbourne | Salome's daughter. |
| Salome | Otterbourne | A writer. |
| Andrew | Pennington | Linnet's trustee. |
| Hercule | Poirot | The famous Belgian detective. |
| Colonel | Race | The police detective who handled Linnet's case. Poirot's close friend. |
| Mr. | Richetti | An Italian Archaeologist. |
| Melhuish | Ridgeway | Linnet's father. |
| Linnet | Ridgeway-Doyle | A rich heiress. Simon's wife. |
| Cornelia Ruth | Robson | Marie's cousin. |
| Mrs. | Robson | Cornelia's mother. |
| Ned | Robson | Cornelia's father. |
| Stemdale | Rockford | Pennington's partner. |
| Joanna | Southwood | Linnet's close friend. Tim's cousin. |
| Marie | Van Schuyler | Engaged to
Fleetwood. |
| Charles | Windlesham | Lord of Charltonbury. Linnet's
fiancé. |
| George | Wode | Owner of Wode Hall. |
| Fleetwood | | Marie's ex-fiancé. |
| Hastings | | Poirot's police friend. |
| Japp | | A Police Chief Inspector. Tim's friend. |
| Jules | | Blondin's cook. |
