| Kacey |
Andrew | Girl who asked Zack to dance |
| Oliver |
Burns | Jodi's theatre friend and neighbor |
| Mr. |
Burr | One of their teachers |
| Mrs. |
Calloway | Drama teacher |
| Jodi |
Dillon | Protagonist |
| Hank |
Dillon | Jodi's father |
| Ms. |
George | Jodi's new wellness counselor |
| Spencer |
Gordon | Boy who asked Jodi to dance |
| Gigi |
Hadid | Fashion model |
| Chelsea |
Harding | Lead detective on Emily's case |
| Nan |
Herrington | Bette's medium friend |
| Julian |
Hollister | Zack's best friend |
| Nina |
Hollister | Julian's mother |
| Ray |
Hollister | Julian's father |
| Mrs. |
Huberman | Teacher who found Jodi crying |
| Vanessa |
Jones | Girl who thought Jodi bullied her |
| Peter |
Kim | Zack's tutor |
| Reagan |
Matthews | One of their schoolmates |
| Emily |
Mills | Girl in love with Zack; took her own life |
| Maureen |
Mills | Emily's mother |
| Robert |
Mills | Emily's father |
| Hannah |
Mills | Emily's sister |
| Paige |
Montgomery | Jodi's friend |
| Cheryl |
Montgomery | Paige's mother |
| Mrs. |
Needlemeyer | Florence's previous counselor |
| Miranda |
Perez | Criminal defense lawyer |
| Lucy |
Reed | Jodi's friend |
| Principal |
Robbins | The school principal |
| Herminia Josephina |
Rodriguez | Jodi's mother |
| Charlie |
Shaw | Paige's boyfriend |
| Miss |
Tamblen | Receptionist |
| Zack |
Thrasher | Helvetia's new point guard; Jodi's best friend |
| Gregory |
Thrasher | Zack's father |
| Katherine |
Thrasher | Zack's older sister |
| Charity |
Thrasher | Gregory's wife; Zack's stepmother |
| Caroline |
Vallow | Girl having a party |
| Henry |
Yang | Buechler's colleague |
| Anna Maria |
| Jodi's grandmother |
| Bette |
| Paige's aunt |
| Buechler |
| Assistant district attorney |
| Doug |
| Production manager |
| Freeman |
| Algebra teacher |
| Kiera |
| Girl Zack was flirting with |
| Matt |
| The guy Jodi met at the party |
| Monica |
| Girl in red bikini |
| Nikita |
| Jodi's theatre friend |
| Patricia |
| Gregory's assistant |
| Rosa |
| Jodi's mother |