 | Maggie Smith als Lily Fox |
 | Laura Linney als Chrissie Ahearn |
 | Kathy Bates als Eileen Dunne |
 | Agnes O'Casey als Dolly Hennessy |
 | Stephen Rea als Frank Dunne |
 | Mark O'Halloran als Father Dermot Byrne |
 | Eric D. Smith als Daniel Hennessy |
 | Mark McKenna als George Hennessy |
 | Niall Buggy als Tommy Fox |
 | Hazel Doupe als Cathy Dunne |
 | Brenda Fricker als Maureen (voice) |
| Luke Jackson Smith als Patrick Dunne |
| Noel Gaskin als Taxi Driver |
| Sean O’Callaghan als Peter (Singer) |
 | Shauna Higgins als Ruth (Peter’s Mother) |
 | Lesley Conroy als Nun 2 |
| Rose Henderson als Nun 1 |
 | Fionnuala Murphy als Mrs. Connolly |
| Amélie Kiki McCormack als Pilgrim Girl in Grotto |
| Alice Heneghan als Rosie Hennessy |
| Janet Grene als Nun at Talent Show (uncredited) |
| Martin McDonagh als Bus Pilgrame (uncredited) |
| Thaddeus O'Sullivan | Director |
| Joshua Maurer | Writer |
| Timothy Prager | Writer |
| Jimmy Smallhorne | Writer |
| Larry Bass | Producer |
| Christelle Conan | Executive Producer |
| Chris Curling | Producer |
| Aaron Farrell | Producer |
| John P Gleeson | Producer |
| Hugo Grumbar | Executive Producer |
| Tim Haslam | Executive Producer |
| Kathryn Kennedy | Line Producer |
| Jessie Mangum | Associate Producer |
| Joshua Maurer | Producer |
| Louise Nathanson | Executive Producer |
| Oisín O'Neill | Producer |
| Anya Ryzhenkova | Associate Producer |
| Andrea Scarso | Executive Producer |
| Peter Touche | Executive Producer |
| Anna Vincent | Executive Producer |
| Alixandre Witlin | Producer |
| Edmund Butt | Original Music Composer |
| Alex Mackie | Editor |
| John Hand | Production Designer |
| Owen Power | Art Direction |
| Judith Williams | Costume Designer |
| Brid Broadberry | Assistant Hairstylist |
| Eileen Buggy | Hair Designer |
| Cliona Campbell | Assistant Makeup Artist |
| Sonia Dolan | Key Makeup Artist |
| Bernie Dooley | Hairstylist |
| Sharon Doyle | Makeup Designer |
| Niamh Glynn | Key Hair Stylist |
| Tara Gorman | Assistant Makeup Artist |
| Kirsty-Cyane McGill | Assistant Hairstylist |
| Aisling Nairn | Makeup Artist |
| Tina Phelan | Makeup Artist |
| Dee Collier | Post Production Supervisor |
| Billie Craven | Post-Production Manager |
| Lyndzi Doyle | Production Manager |
| Eamonn Cawley | Third Assistant Director |
| Christopher Ellis | Assistant Director Trainee |
| Jack Eustace | Assistant Director Trainee |
| Roisin Harrington | Assistant Director Trainee |
| Andrew Hegarty | First Assistant Director |
| Olivia Lloyd | Second Assistant Director |
| Ian Dunne | Construction Manager |
| Georgiana Finn | Props |
| Dave Flynn | Sculptor |
| Francesco Fusco | Graphic Designer |
| Katarzyna Horzela | Props |
| Anna McCarthy | Assistant Art Director |
| Caoimhe McGuane | Draughtsman |
| Ger McLaughlin | Property Buyer |
| Aoife Morris | Assistant Art Director |
| Douglas O'Connor | Property Buyer |
| Brian 'Joker' Mulvey | Special Effects Technician |
| Peter Redmond | Special Effects Supervisor |
| Jennifer Eriksson | Post-Production Manager |
| John Conroy | Director of Photography |
| Stu Laurie | Script Supervisor |
| Zoë Ellen Bryant | Music Supervisor |
| Peter Saville | Music Supervisor |
| Alex Outhwaite | Sound Designer |
| Richard Kondal | Sound Re-Recording Mixer |
| Ed Trousseau | Supervising Sound Editor |
| Ed Trousseau | Sound Re-Recording Mixer |
| Robert Flanagan | Production Sound Mixer |
| Igor Iskra | Boom Operator |
| Adrian Sandu-Yota | Dialogue Editor |
| Milos Stojanovic | Dialogue Editor |
| Maureen Hughes | Casting |
| John Hand | Production Design |
| Emma Moffat | Makeup Supervisor |
