Buddy is a young boy on the cusp of adolescence, whose life is filled with familial love, childhood hijinks, and a blossoming romance. Yet, with his beloved hometown caught up in increasing turmoil, his family faces a momentous choice: hope the conflict will pass or leave everything they know behind for a new life.
| Buddy | Jude Hill |
| Pa | Jamie Dornan |
| Ma | Caitríona Balfe |
| Will | Lewis McAskie |
| Granny | Judi Dench |
| Pop | Ciarán Hinds |
| Moira | Lara McDonnell |
| Billy Clanton | Colin Morgan |
| Mackie | Gerard Horan |
| Auntie Violet | Josie Walker |
| Catherine | Olive Tennant |
| Frankie West | Michael Maloney |
| Minister | Turlough Convery |
| McLaury | Conor MacNeill |
| Mr Stewart | Chris McCurry |
| Mrs Kavanagh | Elly Condron |
| Paddy Kavanagh | Samuel Menhinick |
| Miss Lewis | Vanessa Ifediora |
| Bobby Frank | Gerard McCarthy |
| Mr Singh | Sid Sagar |
| George Malpass as Scrooge | Mark Hadfield |
| Joseph Tomelty as Marley | John Sessions |
| Auntie Eileen | Mairéad Tyers |
| Mr Kavanagh | Drew Dillon |
| Mickey Clanton | Leonard Buckley |
| Billy Clanton Jr | Kit Rakusen |
| Cousin Frances | Freya Yates |
| Cousin Vanessa | Nessa Eriksson |
| Cousin Charlie | Charlie Barnard |
| Auntie Mary | Frankie Hastings |
| Uncle Sammie | Caolan McCarthy |
| Uncle Tony | Ian Dunnett Jnr |
| Ronnie Boyd | Oliver Savell |
| Karen Lambert | Orla McDonagh |
| Walter (Policeman) | Ross O'Donnellan |
| Mary Kavanagh | Olivia Flanagan |
| Sharon Nicholas | Serrana Su-Ling Bliss |
| Mrs Ford | Rachel Feeney |
| Darlene Clanton | Estelle Cousins |
| Fancy Clanton | Scott Gutteridge |
| Young Bill | Bill Branagh |
| Supermarket Manager | Joyce Branagh |
| Rioter | James O'Donnell |
| Soldier | Victor Alli |
| Rent Man | Matthew Blaney |
| Moira's Friend | Scarlett Nunes |
