Callie and Minnie’s relationship is suddenly upended at the start of the summer before their senior year of high school. Left rudderless without her charismatic best friend, Minnie starts to form a complicated friendship with Callie’s mother.
| Actor | Role |
|---|---|
 Katherine Mallen KupfererMinnie Dunn | Minnie Dunn |
 Chloe ColemanCallie Bell | Callie Bell |
 Sophie OkonedoHelen Bell | Helen Bell |
 Tara MallenBarbara Dunn | Barbara Dunn |
 Iman VellaniKat | Kat |
 David Hyde PierceMr. Murdaugh | Mr. Murdaugh |
 Beck NolanBrad Hugg | Brad Hugg |
 Addisyn Grace CainBrandi Combs | Brandi Combs |
 Audrey Grace MarshallCara | Cara |
 Christopher R EllisMark Bell | Mark Bell |
 Mary Kathryn BryantDiane | Diane |
 Barry CliftonMichael | Michael |
 Raeden GreerBeth | Beth |
 Mary Hollis InbodenShayna | Shayna |
 Abigail Rose SolomonJoanne | Joanne |