A struggling primary school teacher is forced to take drastic action because of a foul-mouthed, violent student, and uncovers how her community will turn a blind eye to the most outrageous events to preserve harmony and their sense of safety.
| Actor | Role |
|---|---|
 Saoirse RonanMaria | Maria |
 Eddie WallerDanny | Danny |
 Nia BrownPauline | Pauline |
 Jacob AndersonSam | Sam |
 Rakie AyolaSylvia | Sylvia |
 Robert EmmsJosh | Josh |
 Sean GilderFrank | Frank |
 Kerry HowardPC Williams | PC Williams |
 Jaye JacobsKhaliya's Mum | Khaliya's Mum |
| JJoanna van KampenCarys's Mum | Carys's Mum |
 Kirris RiviereJamal's Dad | Jamal's Dad |
 Dorian SimpsonZayn's Dad | Zayn's Dad |
 Jack AshtonEddy's Dad | Eddy's Dad |
| MMartin CarrollNeighbor #1 | Neighbor #1 |
 Reena DusilaHaleema's Mum | Haleema's Mum |
| PPontus LiedbergOfsted Inspector | Ofsted Inspector |
| MMylee SoverallKhaliya | Khaliya |
| JJohn JosephScout's Dad | Scout's Dad |
| SSerena RamOlivia | Olivia |
| HHarvey IpGus | Gus |
| LLakhan KonsalLakhan | Lakhan |
| DDanny IqbalJaden | Jaden |
| MMohamed Mohammed AhmedJamal | Jamal |
| EEva TennearEleanor | Eleanor |
| MMax NorrisMax | Max |
| RRhys DorganRhys | Rhys |
| AAryana WatsonAryana | Aryana |
| JJessica BartonJessica | Jessica |
| EEva MitchellEva | Eva |
| MMaci MorganLily | Lily |