When a young woman unexpectedly arrives at an older man's workplace, looking for answers, the secrets of the past threaten to unravel his new life.
| Actor | Role |
|---|---|
 Rooney MaraUna Spencer | Una Spencer |
 Ben MendelsohnRay Brooks | Ray Brooks |
 Riz AhmedScott | Scott |
 Ruby Stokesyoung Una Spencer | young Una Spencer |
 Tara FitzgeraldAndrea | Andrea |
 Natasha LittleYvonne | Yvonne |
 Tobias MenziesMark | Mark |
 Indira VarmaSonia | Sonia |
 Poppy Corby-TuechPoppy | Poppy |
 Isobelle MolloyHolly | Holly |
 Ciarán McMenaminJohn | John |
 David ShieldsJoe | Joe |
| SSophie StantonCarol | Carol |
 Sydney WadeAmy | Amy |
 Gráinne KeenanJenny | Jenny |
 Emilee RoscampEmma | Emma |
 Dan BallNick | Nick |
 Xanthe GibsonLeah | Leah |
 Jessica Jean Harland StubbsJade | Jade |
| KKatie MoneyGemma | Gemma |
| AAlexander BracqPacking Staff | Packing Staff |
 Richard CunninghamProsecutor | Prosecutor |
 Madeleine BrollyCourtroom Clerk | Courtroom Clerk |
 Barney WhitePoliceman 1 | Policeman 1 |
| BBrett AllenPoliceman 2 | Policeman 2 |
 Lucas JonesNightclub Guest (uncredited) | Nightclub Guest (uncredited) |