1 | Emily | Arundell | The last survivor of the Arundell Siblings / Writes to Poirot. |
| Mr. | Jones | The grocer. |
| Mrs. | Lamphrey | Woman who works at the post office. |
| Willhemina | Lawson | Emily's companion. aka: Minnie. |
| Theresa | Arundell | Emily's niece. |
| Charles | Arundell | Emily's nephew / Theresa's brother. |
| Bella | Biggs Tanios | Theresa and Charles's cousin. |
| Jacob | Tanios | Bella's husband. |
| Bob | | A fox terrier / Emily's dog. |
| Spot | | The butcher's dog. |
| Caroline | Peabody | Emily's friend. |
| Rex | Donalson | Theresa's fiance. |
| Charles L. | Arundell | Emily's father. |
| Thomas | Arundell | Emily's brother. |
| William | Purvis | Solicitor. |
| Mary | Tanios | Bella and Jacob's daughter. |
| Ellen | | Emily's long-time servant. |
2 | Edward | Tanios | Bella and Jacob's son. |
3 | Julia | Tripp | A spiritualist who lives in the Little Green House. |
| Isabel | Tripp | Julia's sister. |
| Dr. | Grainger | Emily's long-time doctor. |
| Arabella | Arundell | Emily's sister. Deceased. |
| Matilda | Arundell | Emily's sister. Deceased. |
| Agnes | Arundell | Emily's sister. Deceased. |
4 | Mary | Fox | The woman Emily met in Cheltenham. |