In darkest rural Ireland, ex-boxer Douglas 'Arm' Armstrong has become the feared enforcer for the drug-dealing Devers family, whilst also trying to be a good father to his autistic five-year-old son, Jack. Torn between these two families, Arm's loyalties are truly tested when he is asked to kill for the first time.
| Production | Theo Barrowclough | Associate Producer |
| Editing | Matthew Tabern | Editor |
| Art | Annalisa Andriani | Set Decoration |
| Production | Michael Fassbender | Executive Producer |
| Production | Shaheen Baig | Casting |
| Art | Tara O'Reilly | Art Direction |
| Writing | Joseph Murtagh | Writer |
| Production | Daniel Emmerson | Producer |
| Directing | Nick Rowland | Director |
| Editing | Nicolas Chaudeurge | Editor |
| Production | Kate Glover | Co-Producer |
| Costume & Make-Up | Sharon Long | Costume Design |
| Production | Mike Runagall | Executive Producer |
| Art | Damien Creagh | Production Design |
| Production | Conor McCaughan | Executive Producer |
| Camera | Piers McGrail | Director of Photography |
| Production | Will Clarke | Executive Producer |
| Editing | Andonis Trattos | Editor |
| Costume & Make-Up | Anna Bass | Makeup Artist |
| Sound | Matis Rei | Sound Re-Recording Mixer |
| Costume & Make-Up | Edwina Kelly | Makeup Artist |
| Sound | Morgan Muse | Supervising Dialogue Editor |
| Visual Effects | Brooke Lyndon-Stanford | Visual Effects Supervisor |
| Writing | Colin Barrett | Short Story |
| Production | Rory Gilmartin | Co-Producer |
| Costume & Make-Up | Emma Scott | Makeup Designer |
| Production | Gemma O'Shaughnessy | Line Producer |
| Directing | Benjamin Crowe | First Assistant Director |
| Directing | Mike Hayes | First Assistant Director |
| Directing | Conor Flannery | Third Assistant Director |
| Production | Seán Burke | Location Manager |
| Production | Emer O'Shea | Production Executive |
| Production | Ed Guiney | Producer |
| Production | Filiz-Theres Erel | Line Producer |
| Production | Iman Kiashemshaki | Producer |
| Sound | Benjamin John Power | Original Music Composer |
| Art | Fletcher Jarvis | Art Direction |
| Art | Sandra Szpytko | Set Decoration |
| Costume & Make-Up | Anna Bass | Hairstylist |
| Costume & Make-Up | Roisin Copeland | Assistant Hairstylist |
| Costume & Make-Up | Linda Gannon | Key Hair Stylist |
| Costume & Make-Up | Stephanie Kavanagh | Makeup Trainee |
| Costume & Make-Up | Clodagh McInerney | Prosthetic Makeup Artist |
| Production | Cecily Colahan | Production Manager |
| Crew | Tricia Perrott | Post Production Supervisor |
| Directing | Claire T. Cassidy | Assistant Director Trainee |
| Directing | David Kennedy | Second Assistant Director |
| Directing | Zoe Tough | Additional Second Assistant Director |
| Directing | Denis Fitzpatrick | Additional Second Assistant Director |
| Directing | Dani Wall | Assistant Director Trainee |
| Art | Charlotte Ball | Set Dresser |
| Art | Anthony Brannigan | Painter |
| Art | Barry Davenport | Props |
| Art | Damien Gordon | Art Department Trainee |
| Art | Jim Grindley | Property Master |
| Art | Sean Lyons | Set Dresser |
| Art | Ian McCaffrey | Storyboard Artist |
| Art | John McHale | Assistant Art Director |
| Art | Sarah McLoughlin | Standby Art Director |
| Sound | David Crane | ADR Recordist |
| Sound | David Giles | Production Sound Mixer |
| Sound | Mark Henry | ADR Recordist |
| Sound | Tapio Liukkonen | Foley Artist |
| Sound | Juan Montoto Ugarte | Production Sound Mixer |
| Sound | Matis Rei | Supervising Sound Editor |
| Sound | Adrian Sandu-Yota | ADR Mixer |
| Sound | Oscar Schlicht | Assistant Foley Artist |
| Sound | Nik Stojkov | Production Sound Mixer |
| Crew | Kevin Nolan | Special Effects Coordinator |
| Visual Effects | Dheeraj Chaudhary | Visual Effects Compositor |
| Visual Effects | Justin Cornish | Visual Effects Supervisor |
| Crew | Clwyd Edwards | Executive Visual Effects Producer |
| Visual Effects | Shane Jaeger-Collins | Visual Effects Coordinator |
| Visual Effects | Roshni Maranat | Visual Effects Producer |
| Production | Chandra Mouley Atray | Head of Production |
| Production | Swapnali Mumbarkar | Line Producer |
| Art | Oleg Loginov | Opening Title Sequence |
| Crew | Neil Chapelhow | Stunts |
| Crew | Norman Kelly | Stunt Driver |
| Crew | Branislav Martinak | Fight Choreographer |
| Crew | Branislav Martinak | Stunt Double |
| Crew | Lubomir Misak | Stunts |
| Crew | Donal O'Shea | Stunts |
| Crew | Peter Pedrero | Stunt Coordinator |
| Camera | Si Bell | Additional Director of Photography |
| Lighting | Jazz Bhalla | Gaffer |
| Camera | Rodrigo Bruzoni | First Assistant "B" Camera |
| Camera | John Connon | Key Grip |
| Lighting | John Creagh | Best Boy Electrician |
| Lighting | Addo Gallagher | Gaffer |
| Camera | Aidan Gault | "B" Camera Operator |
| Lighting | Eimear Ennis-Graham | Lighting Technician |
| Camera | Fiona Graham | Second Assistant Camera |
| Camera | Alfie Hollingsworth | Camera Trainee |
| Camera | Daniel Kelly | Assistant Camera |
| Camera | Dylan Knapp | Digital Imaging Technician |
| Lighting | Jack Madden | Electrician |
| Lighting | Howard Morton | Electrician |
| Camera | Mick O'Rourke | Steadicam Operator |
| Lighting | Leo Olesker | Electrician |
| Camera | Leighton Spence | First Assistant Camera |
| Lighting | Zik Udenze | Electrician |
| Lighting | Paul Wilcox | Electrician |
| Camera | Francesca Zucchini | Camera Trainee |
| Production | Mairéad Campbell | Extras Casting |
| Production | Michelle Giovanni | Casting Associate |
| Production | Gabby King | Casting Assistant |
| Costume & Make-Up | Mary Fox | Costume Supervisor |
| Costume & Make-Up | Paul Keady | Costume Standby |
| Costume & Make-Up | Anya Jane Magee | Daily Wardrobe |
| Costume & Make-Up | Mathew Stevenson Wright | Assistant Costume Designer |
| Crew | Joseph Mackenzie | Post Production Assistant |
| Production | Connie McCool Duncan | Post Production Coordinator |
| Production | Sabrina Salome | Post Production Coordinator |
| Editing | Matthew Troughton | Colorist |
| Production | Damon Crane | Location Manager |
| Production | Ruben Pereira | Assistant Location Manager |
| Sound | Phil Canning | Music Supervisor |
| Directing | Áine Máire Ní Tháibhís | Script Supervisor |
| Crew | Paul Cullen | Transportation Captain |
| Production | Nicky Earnshaw | Head of Production |
| Production | Emily Leach | Production Manager |
| Production | Katherine Pomfret | Production Executive |
| Crew | Boyd Rankin | Armorer |
| Crew | Jennifer Eriksson | Post-Production Manager |
