| Carolyn |
Bean | Jesse's girlfriend |
| Lindsay |
Bean | Carolyn's sister |
| Olive |
Berman | Emma's friend |
| Ashley |
Blair | Emma's mother |
| Colin |
Blair | Emma's father |
| Emma |
Blair | Narrator and protagonist |
| Graham |
Hughes | Captain of the swim team, Marie's boyfriend |
| Elizabeth |
Ivan | The girl from "Beacon" |
| Sam |
Kemper | Emma's fiancé |
| Samuel Marcus |
Kemper | School principal |
| Chris |
Lerner | Jesse's older brother |
| Danny |
Lerner | Jesse's brother |
| Francine |
Lerner | Jesse's mother |
| Jesse |
Lerner | Emma's husband |
| Joe |
Lerner | Jesse's father |
| Tricia |
Lerner | Chris's wife |
| Charles |
Mingus | American Jazz
Bassist |
| Keanu |
Reeves | Famous American
actor |
| Shel |
Silverstein | The author that Marie likes |
| Robby |
Timmer | Emma's ex-boyfriend |
| Billy |
Yen | Olive and Emma's mutual friend |
| Ava |
| Marie and Mike's daughter |
| Debbie |
| Marie's friend they stayed with |
| Eli |
| Olive's cousin, member of a swim team |
| Emily |
| Character in Marie's story |
| Ginnie |
| Jesse's niece |
| Joelle |
| Marie's friend |
| Margaret |
| Assistant manager |
| Marie |
| Emma's sister |
| Marlene |
| Danny's partner |
| Mike |
| Marie's husband |
| Mike |
| Marie's new boyfriend |
| Mozart |
| Sam and Emma's cat |
| Olive |
| Emma's friend |
| Sophie |
| Marie and Mike's daughter |
| Tina |
| One of Emma's employees |
