| 1 | | | Journal of Rose Ingrid Castle |
| | Owen | | Rose's husband. |
| | Fern Elizabeth | Castle | A librarian. Rose's twin sister. |
| | Daniel | | A commercial pilot. |
| | Billy | | Daniel's son. |
| 2 | | | Fern |
| | Linda | | A children's librarian. |
| | Claude | Monet | A French impressionist painter. |
| | Gayle | | Fern's acquaintance. |
| | Rose Ingrid | Castle | An interior designer. |
| | Janet | | Fern's former supervisor. |
| | Wally | | A computer programmer. |
| | Ian | McEwan | An English novelist and screenwriter. |
| | Mr. | Robertson | A library patron. |
| | Mrs. | Delahunty | One of the librarians. |
| 3 | | | Journal of Rose Ingrid Castle |
| | Nancy | | Rose's mother's friend. aka: Nance. |
| 4 | | | Fern |
| | Alfie | | A dog. |
| | Mrs. | Hazelbury | Fern's neighbor. |
| | Mrs. | Millard | Fern's acquaintance. |
| | Albert | | A medical student. |
| | Bernadette | | One of Fern's colleagues. |
| | Trevor | | One of Fern's colleagues. |
| | Carmel | | Fern's new boss. |
| | Bradley | Cooper | An American actor and filmmaker. |
| | Rocco | Ryan | Real name of Wally. |
| | Paul | Jennings | An American Author, First White House Memoirist. |
| | Andy | Griffith | An American actor. |
| 6 | | | Fern |
| | Mr. | McIntosh | A science teacher. |
| | Miss | Knight | The school principal. |
| | Margaret | | Rose and Fern's great-aunt. |
| 8 | | | Fern |
| | Dodie | Smith | An English children's novelist and playwright. |
| | Tom | | A maintenance man. |
| 9 | | | Journal of Rose Ingrid Castle |
| | Agatha | Christie | An English mystery and detective writer. |
| 10 | | | Fern |
| | Onnab | | A nurse. |
| | Teresa | | A speech pathologist. |
| | Nina | | Rose and Fern's mother. |
| 11 | | | Journal of Rose Ingrid Castle |
| | Gary | | Nina's boyfriend. |
| 12 | | | Fern |
| | Michelle | Obama | Former First Lady of the United States. |
| | Linus | Torvalds | A Finnish-American software engineer. |
| | Steve | Wozniak | American computer pioneer, computer engineer and programmer. |
| 16 | | | Fern |
| | Mrs. | Stevens | Fern's acquaintance. |
| | Margaret | Atwood | Canadian poet, novelist, essayist, environmental activist. |
| 17 | | | Journal of Rose Ingrid Castle |
| | Trish | | Billy's mother. |
| 24 | | | Fern |
| | Lisa | Ireland | An Australian writer of contemporary women's fiction. |
| 26 | | | Fern |
| | Kelly | Rimmer | A reputed novelist from Australia. |
| | Jessica | | A receptionist at Sun Meadows. |
| | Leonardo | DiCaprio | An American actor and film producer. |
| | Beverly | | A nurse. |
| 28 | | | Fern |
| | John | Grisham | An American novelist, lawyer. |
| | Naomi | Davison | An adoption counselor. |
| 30 | | | Fern |
| | Willow | | Fern's baby. |
| | Dr. | Aston | A psychiatrist. |
| | Sara | Brookes | A police detective. |
| | Nadine | Riley | A hospital administrator. |
| | Kevin | | A therapist. |
