A young woman, traumatized by a tragic event in her past, seeks out vengeance against those who crossed her path.
| Cassandra | Carey Mulligan |
| Ryan | Bo Burnham |
| Madison | Alison Brie |
| Stanley | Clancy Brown |
| Susan | Jennifer Coolidge |
| Gail | Laverne Cox |
| Al Monroe | Chris Lowell |
| Mrs. Fisher | Molly Shannon |
| Dean Walker | Connie Britton |
| Jerry | Adam Brody |
| Joe | Max Greenfield |
| Neil | Christopher Mintz-Plasse |
| Lincoln | Steve Monroe |
| Paul | Sam Richardson |
| Jim | Ray Nicholson |
| Monty | Timothy E. Goodwin |
| Ruby | Alli Hart |
| Jeff | Loren Paul |
| Jeff's Friend | Scott Aschenbrenner |
| Alfred | Gabriel Oliva |
| Tony | Bryan Lillis |
| Amber | Francisca Estevez |
| Jean | Lorna Scott |
| George | Casey Adams |
| Simon | Vince Lozano |
| Chip | Mike Horton |
| Todd | Angela Zhou |
| Anastasia | Austin Talynn Carpenter |
| Woman in Makeup Tutorial (uncredited) | Emerald Fennell |
| Mr. Green (uncredited) | Alfred Molina |
| Gabby (Uncredited) | Scarlet Spencer |
Promising Young Woman on Wikipedia
Promising Young Woman on IMDb
