 | Olivia Cooke als Pixie |
 | Ben Hardy als Frank McCullen |
 | Daryl McCormack als Harland McKenna |
 | Colm Meaney als Dermot O'Brien |
 | Alec Baldwin als Father Hector McGrath |
 | Rory Fleck-Byrne als Colin |
 | Fra Fee als Fergus |
 | Turlough Convery als Mickey O'Brien |
 | Chris Walley als Daniel Donnelly |
 | Pat Shortt als Father Daly |
 | Frankie McCafferty als Father McGinley |
 | Ned Dennehy als Seamus |
 | Dylan Moran als Raymond Donnelly |
 | Sebastian de Souza als Gareth |
 | Esme Thompson als Shannon, the Barmaid |
 | Packy Lee als Tommy |
 | Olivia Byrne als Summer O'Brien |
| Brenda McNeill als TV Reporter |
 | Barbara Adair als Maeve Smith |
| Donal O'Farrell als Businessman |
 | David Rawle als Altar Boy |
 | Eoin Duffy als Gas Station Attendant |
| Endang Ward als Marilou |
| Stephen Walsh als Father Armstrong |
| Karen Smithson als Sister Geraghty |
| Levi O'Sullivan als Dick |
 | Charlie Kranz als American Dad (uncredited) |
 | David Pearse als Reece Kearney |
| Barnaby Thompson | Director |
| James Clayton | Producer |
| Katrina McBriarty | Line Producer |
| Barnaby Thompson | Producer |
| Peter Touche | Executive Producer |
| Stephen Darragh | Second Assistant Director |
| Darren Fee | First Assistant Director |
| Hussain Yasin | Third Assistant Director |
| Sam Conway | Special Effects Supervisor |
| Preston Thompson | Writer |
| Samantha Allwinton | Executive Producer |
| John de Borman | Director of Photography |
| Nicola Moroney | Production Design |
| Robbie Morrison | Editor |
| Hazel Webb-Crozier | Costume Design |
| Robyn Wheeler | Hair Designer |
| Robyn Wheeler | Makeup Designer |
| David Holmes | Original Music Composer |
| Gerry Diver | Original Music Composer |
| Matt Biffa | Music Supervisor |
| Ciara Elwis | Music Supervisor |
| Reg Poerscout-Edgerton | Casting Director |
| Carla Stronge | Casting Director |
| Martin Harrison | Sound Mixer |
| Matt Fisher | Camera Operator |
| Matt Fisher | Steadicam Operator |
| David Cooke | Location Manager |
| Shuna Frood | Post Production Supervisor |
| Andy Shelley | Supervising Sound Editor |
| Stephen Griffiths | Supervising Sound Editor |
| Steve Single | Sound Re-Recording Mixer |
| Gary Curran | Colorist |
| Donal O'Farrell | Stunt Coordinator |
| David Anders | Stunts |
| William Willoughby | Stunts |
| Alan Walsh | Stunts |
| Paul Ginns | Stunts |
| Peter Syckelmoore | Stunts |
| Ryan Douglas | Focus Puller |
| David Doherty | Focus Puller |
| Ivan Meagher | Focus Puller |
| Alan Butler | Focus Puller |
| Malachy Sturgeon | Clapper Loader |
| Erin O'Rawe | Clapper Loader |
| Cel Bothwell-Fitzpatrick | Digital Imaging Technician |
| Keelan Whyte | Video Assist Operator |
| Matthew MacAuley | Camera Trainee |
| Emma Noble | Camera Trainee |
| Helen McCullough | Script Supervisor |
| Lucy McCutcheon | Production Coordinator |
| Rebecca Hogg | Assistant Production Coordinator |
| Ayrton McGurgan | Production Trainee |
| Anna Callan | Floor Runner |
| Paul Moran | Floor Runner |
| Joanne Noone | Production Accountant |
| Kirsty McBriar | Assistant Accountant |
| Riley Garrett | Key Grip |
| Jamie Mooney | Grip |
| Danny Tarr | Grip Production Assistant |
| Ger O'Hagan | Gaffer |
| Nigel Holland | Best Boy Electrician |
| Stavros Kyriacou | Electrician |
| Gino Lynch | Electrician |
| Gareth Hetherington | Generator Operator |
| Francis Taaffe | Art Direction |
| Johnny Mulvany | Standby Art Director |
| Stephen McGlue | Graphic Designer |
| Kevin McCabe | Set Decoration |
| Claire Fox | Set Buyer |
| Eamon Beagon | Dressing Prop |
| Stevie Collins | Dressing Prop |
| Anna Gillespie | Art Department Assistant |
| David Carson | Property Master |
| Paul Toman | Standby Rigger |
| Harriet Webb-Crozier | Costume Supervisor |
| Malachy Casement | Costume Standby |
| Fiona Goggin | Costume Standby |
| Laura Allen | Hairstylist |
| Laura Allen | Makeup Artist |
| Sharon Watson | Makeup Artist |
| Sarah McGuicken | Makeup Trainee |
| Gareth Hogan | Assistant Location Manager |
| Anthony Quinn | Unit Manager |
| John Vaughan | Location Scout |
| Phil Crothers | Location Scout |
| Sam Murdock | Special Effects Coordinator |
| Eden Ralph | Special Effects Technician |
| Tom Stroud | Special Effects Technician |
| Mark McGuinness | Special Effects Technician |
| Danny Martin | Special Effects Assistant |
| Soleil Zuanich | Unit Publicist |
| Kate Lee | Unit Publicist |
| Aidan Monaghan | Still Photographer |
| Michael Hooley | Casting Associate |
| Hayley Russell | Casting Assistant |
| Nick Trumble | Dialect Coach |
| Brendan Gunn | Dialect Coach |
| Gary Campbell | Armorer |
| Jonny Anderson | Transportation Captain |
| Liam Fullerton | Specialized Driver |
| Gerry McCabe | Specialized Driver |
| David Orr | Specialized Driver |
| Johnny Crawford | Specialized Driver |
| William Thompson | Specialized Driver |
| Stephen Cooke | Specialized Driver |
| Ronnie Davidson | Specialized Driver |
| Frazer Crawford | Specialized Driver |
| John Morrison | Specialized Driver |
| Kieron Feeney | Specialized Driver |
| Tim Lee | Specialized Driver |
| Johnny Lee | Specialized Driver |
| Sean Bailey | Health and Safety |
| Roy McAllister | Health and Safety |
| Ivan Doherty | Set Medic |
| Victoria Bate | Assistant Editor |
| Eleanor Cotton | Assistant Editor |
| Stephanie McCutcheon | Assistant Editor |
| Rachel Proudlove | Post Production Accountant |
| Frances Patterson | ADR Coordinator |
| Sophia McKeever | Post Production Coordinator |
| Rob Wright | Dailies Manager |
| Scott Ferguson | Additional Colorist |
| Jonathan Fetherston | Online Editor |
| Darren Nash | Visual Effects Supervisor |
| Ryan Patrick Yates | Visual Effects Compositor |
| David McCabe | Visual Effects Compositor |
| Aaron Hegarty | Visual Effects Compositor |
| Connor Cain | Visual Effects Compositor |
| Justin Dolby | Dialogue Editor |
| Matis Rei | Sound Effects Editor |
| Ian Wilkinson | Foley Recordist |
| Pietro Dalmasso | Foley Editor |
| Rowena Wilkinson | Foley Artist |
| Johnathan Rush | Sound Mix Technician |
| Matt Curtis | Title Designer |
| Gerry Diver | Musician |
| Woody Jackson | Musician |
| Tim Harries | Musician |
| Keefus Ciancia | Musician |
| Sam Dixon | Musician |
| Emre Ramazanoglu | Musician |
| David Holmes | Musician |
| David Holmes | Score Engineer |
| Michael Patterson | Scoring Mixer |
