| | | | Amsterdam |
| | Isabel | | Protagonist. AKA: Belly. |
| | L. | Bertram | To whom the postcard was addressed to. |
| | M | | The sender of the postcard. |
| | | | Glaciers |
| | Agnes (1) | | Isabel's older sister. AKA: Aggie. |
| | Little | John | A blind Labrador Retriever. |
| | | | Calving - When part of a glacier breaks free and becomes an Iceberg. |
| | Agnes (2) | | Isabel's deceased grandmother. Aggie's namesake. |
| | | | The Wounded |
| | Leo | | Isabel's best friend. AKA: Loon. |
| | Spoke | | Isabel's colleague and love interest. From the Tech Support department. AKA: Thomas. |
| | Molly | | Isabel's colleague. Works across the hall from her. |
| | | | Bones |
| | Derek | | A scrawny boy from 4th grade. |
| | | | Choir Girl |
| | Joan | Crawford | Actress. |
| | | | Architecture |
| | Astrologer | | Isabel and Agnes's aunt. |
| | Carpenter | | The astrologer's husband. |
| | Gigi | | The astrologer's great-great-grandmother. |
| | Nell | | Gigi's sister. |
| | Vern | | Gigi's third husband. |
| | | | Life in a Northern Town |
| | Steve | | The new man of Isabel's mother. |
| | Debbie | Gibson | Singer. |
| | | | Fortunes |
| | Peter | | Isabel's colleague. |
| | | | Back Pocket |
| | Ahmed | | Isabel's colleague. |
| | Nate | | Isabel's colleague. |
| | | | Exit, Glacier |
| | Matt | Jones | The guy Isabel would be married to according to the game MASH. |
| | | | Other People's Stories |
| | Harvey | Fierstein | Playwright. |
| | Michael | | The party host. |
| | Hedi | Slimane | Image director of Celine. |
| | Adam | | A boy from the party. |
| | | | Rhubarb - The first harvest from the garden every spring. |
| | Paige | | A girl from the party. |
| | Jacob | | A boy from the party. A painter. |
| | Theda | Bara | Actress. |
