| Dr. | Aston | A psychiatrist. |
| Margaret | Atwood | Canadian poet, novelist, essayist, environmental activist. |
| Sara | Brookes | A police detective. |
| Fern Elizabeth | Castle | A librarian. Rose's twin sister. |
| Rose Ingrid | Castle | An interior designer. |
| Agatha | Christie | An English mystery and detective writer. |
| Bradley | Cooper | An American actor and filmmaker. |
| Naomi | Davison | An adoption counselor. |
| Mrs. | Delahunty | One of the librarians. |
| Leonardo | DiCaprio | An American actor and film producer. |
| Andy | Griffith | An American actor. |
| John | Grisham | An American novelist, lawyer. |
| Mrs. | Hazelbury | Fern's neighbor. |
| Lisa | Ireland | An Australian writer of contemporary women's fiction. |
| Paul | Jennings | An American Author, First White House Memoirist. |
| Miss | Knight | The school principal. |
| Ian | McEwan | An English novelist and screenwriter. |
| Mr. | McIntosh | A science teacher. |
| Mrs. | Millard | Fern's acquaintance. |
| Claude | Monet | A French impressionist painter. |
| Michelle | Obama | Former First Lady of the United States. |
| Nadine | Riley | A hospital administrator. |
| Kelly | Rimmer | A reputed novelist from Australia. |
| Mr. | Robertson | A library patron. |
| Rocco | Ryan | Real name of Wally. |
| Dodie | Smith | An English children's novelist and playwright. |
| Mrs. | Stevens | Fern's acquaintance. |
| Linus | Torvalds | A Finnish-American software engineer. |
| Steve | Wozniak | American computer pioneer, computer engineer and programmer. |
| Albert | | A medical student. |
| Alfie | | A dog. |
| Bernadette | | One of Fern's colleagues. |
| Beverly | | A nurse. |
| Billy | | Daniel's son. |
| Carmel | | Fern's new boss. |
| Daniel | | A commercial pilot. |
| Gary | | Nina's boyfriend. |
| Gayle | | Fern's acquaintance. |
| Janet | | Fern's former supervisor. |
| Jessica | | A receptionist at Sun Meadows. |
| Kevin | | A therapist. |
| Linda | | A children's librarian. |
| Margaret | | Rose and Fern's great-aunt. |
| Nancy | | Rose's mother's friend. aka: Nance. |
| Nina | | Rose and Fern's mother. |
| Onnab | | A nurse. |
| Owen | | Rose's husband. |
| Teresa | | A speech pathologist. |
| Tom | | A maintenance man. |
| Trevor | | One of Fern's colleagues. |
| Trish | | Billy's mother. |
| Wally | | A computer programmer. |
| Willow | | Fern's baby. |
