 | Colin Farrell als David |
 | Rachel Weisz als Short Sighted Woman |
 | Olivia Colman als Hotel Manager |
 | Léa Seydoux als Loner Leader |
 | Michael Smiley als Loner Swimmer |
 | Ariane Labed als The Maid |
 | John C. Reilly als Lisping Man |
 | Ben Whishaw als Limping Man |
 | Angeliki Papoulia als Heartless Woman |
 | Jessica Barden als Nosebleed Woman |
 | Emma O'Shea als Nosebleed Woman's Best Friend |
 | Ashley Jensen als Biscuit Woman |
 | Roger Ashton-Griffiths als Doctor |
 | Anthony Dougall als 70 Year Old Waiter |
 | Anthony Moriarty als 30 Year Old Waiter |
 | Sean Duggan als Guard Waiter |
 | Imelda Nagle Ryan als Loner Leader's Mother |
| Roland Ferrandi als Loner Leader's Father |
| James Finnegan als Bald Man |
 | Rosanna Hoult als David's Wife |
| Kathy Kelly als Police Officer 1 |
| Kevin McCormack als Police Officer 2 |
 | Jacqueline Abrahams als Donkey Shooter |
 | Garry Mountaine als Hotel Manager's Partner |
 | Ewen MacIntosh als Trainer Waiter (Shooting Range) |
| Patrick Malone als Campari Man |
 | Sandra Hayden Mason als Arrested Town Woman |
| Judi King Murphy als Guest Room 104 |
 | Laoise Murphy als New Daughter |
 | Nancy Onu als Hotel Receptionist |
| Chris Threader als Coach Driver Waiter |
| Ishmael Moalosi als Bandaged Loner |
 | Matthew O'Brien als Trapped Loner |
| Robert Heaney als Restaurant Waiter |
| Cian Boylan als Piano Player (uncredited) |
| Clive Dev als Hotel Guest (uncredited) |
 | Degnan Geraghty als Waiter (uncredited) |
| Heidi Ellen Love als Waitress (uncredited) |
| Dolores Marren als Waitress (uncredited) |
| Mark McCormack als Waiter (uncredited) |
| Stephen Ryan als Hotel Guest (uncredited) |
| Yorgos Lanthimos | Screenplay |
| Yorgos Lanthimos | Director |
| Ceci Dempsey | Producer |
| Lee Magiday | Producer |
| Thimios Bakatakis | Director of Photography |
| Efthymis Filippou | Screenplay |
| Sarah Blenkinsop | Costume Design |
| Jina Jay | Casting |
| Yorgos Mavropsaridis | Editor |
| Jacqueline Abrahams | Production Design |
| Cait Collins | Line Producer |
| Derk-Jan Warrink | Co-Producer |
| Leontine Petit | Co-Producer |
| Christos V. Konstantakopoulos | Co-Producer |
| Joost de Vries | Co-Producer |
| Carole Scotta | Co-Producer |
| Yorgos Lanthimos | Producer |
| Ed Guiney | Producer |
| Sam Lavender | Executive Producer |
| Andrew Lowe | Executive Producer |
| Tessa Ross | Executive Producer |
| Mark Kelly | Art Direction |
| Jessica Timlin | Assistant Art Director |
| Thyrza Ging | Casting Associate |
| Karen Scully | Casting Associate |
| Louise Kiely | Casting |
| Amy Ashworth | Music Supervisor |
| John McKenna | Armorer |
| Dave Moran | Script Supervisor |
| Barry Conroy | Gaffer |
| Kristina Prilukova | Visual Effects Producer |
| Pierre Buffin | Visual Effects Supervisor |
| Olivier Cauwet | Visual Effects Supervisor |
| Danny van Spreuwel | Dialogue Editor |
| Ronnie van der Veer | Foley |
| Simon Carroll | Sound Effects Editor |
| Johnnie Burn | Sound Re-Recording Mixer |
| Danny van Spreuwel | Sound Re-Recording Mixer |
| Jim Walsh | Property Master |
| Eileen Buggy | Hair Designer |
| Lucy Browne | Makeup Artist |
| Sharon Doyle | Makeup Designer |
| Jack Kuiper | Digital Intermediate |
| Conor Mackey | First Assistant Editor |
| Eoin McGuirk | First Assistant Editor |
| Giedrius Nagys | Stunt Coordinator |
| Johnnie Burn | Sound Designer |
| Joe Mount | Sound Effects Editor |
| Simon Arnal | Associate Producer |
| Caroline Benjo | Associate Producer |
| Rory Gilmartin | Executive Producer |
| Milan Ueffing | Associate Producer |
| Vasilis Marmatakis | Graphic Designer |
| Yorgos Mavropsaridis | Music Editor |
| Christos Voudouris | Thanks |
| Ariane Labed | Thanks |
| Emer O'Shea | Production Assistant |
| Despina Spyrou | Still Photographer |
| Julie Billy | Line Producer |
| Tara O'Halloran | Makeup Artist |
| Owen Magee | First Assistant Director |
| Lisa Kelly | Second Assistant Director |
| Mike Hayes | Third Assistant Director |
| Miriam Ferguson | Assistant Director |
| Cassandra Steyn-Taylor | Wardrobe Supervisor |
| Anna Grönerus | Hairdresser |
| Zoë Gibney | Makeup Trainee |
| Shane Deasy | Focus Puller |
| Aislinn McDonald | Digital Imaging Technician |
| Ciaran Maginn | Camera Trainee |
| Oisín Kelly | Key Grip |
| David Doherty | Clapper Loader |
| Aoife Byrne | Stunts |
| Emma Condren | Stunts |
| Vasilis Marmatakis | Title Designer |
