REGRETTING YOU
Characters - Alphabetical
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| FIRST NAME | LAST NAME | DESCRIPTION |
| Hank | Adams | Morgan's friend; Miller's father |
| Miller | Adams | Clara's crush; Hank's son |
| Wes | Anderson | Real-life filmmaker, creator of Fantastic Mr. Fox |
| Charlie | Banks | Student whose locker Miller switches with |
| Efren | Beltran | Miller's Filipino friend |
| Esther | Bloombilingtington | Chromophobia expert |
| Jenny | Davidson | Morgan's younger sister; Chris's lover |
| Adam | Driver | Clara's favorite actor |
| Morgan | Grant | Protagonist; wife of Chris and mother of Clara |
| Chris | Grant | Morgan's husband; father of Clara; has an affair with Jenny |
| Clara | Grant | Morgan and Chris's teenage daughter; narrates alternating chapters |
| Sidney | Lumet | Real-life film director; referenced in conversation |
| Mrs. | Nettle | Morgan's next-door neighbor |
| Shelby | Phillips | Miller's girlfriend at the start of the story |
| Emma | Stone | Clara's favorite actress |
| Jonah | Sullivan | Chris's best friend and Jenny's boyfriend |
| Elijah | Sullivan | Jenny and Jonah's infant son |
| Mr. | Sullivan | Clara's teacher |
| Aaron | Clara's ex-boyfriend | |
| Emily | Lexie's friend | |
| Lexie | Clara's best friend | |
| Nora | Miller's beloved pickup truck | |
| Sierra | Nurse who works with Morgan | |
| Steven | Miller's co-worker |
