 | Imogen Poots als Gemma Pierce |
 | Jesse Eisenberg als Tom |
 | Jonathan Aris als Martin |
 | Senan Jennings als Young Boy |
 | Éanna Hardwicke als Older Boy |
 | Molly McCann als Molly |
 | Danielle Ryan als School Mom |
 | Olga Wehrly als Crying Woman |
 | Jack Hudson als Estate Agent (uncredited) |
 | Mark Quigley als Estate Agent (uncredited) |
 | Michael McGeown als Factory Worker (uncredited) |
| Lorcan Finnegan | Director |
| Garret Shanley | Screenplay |
| Tony Cranstoun | Editor |
| Philip Murphy | Production Design |
| Brendan McCarthy | Producer |
| MacGregor | Director of Photography |
| Garret Shanley | Story |
| Rory McPartland | Music Supervisor |
| Gabriel Bertrand | Electrician |
| Ronald Grauer | Visual Effects Supervisor |
| Alexander Schepelern | Visual Effects Supervisor |
| Patrick Ghislain | Foley Mixer |
| Robert Barrett | Art Direction |
| Adrienne McGrane | Graphic Designer |
| Stéphanie Pottier | Visual Effects Coordinator |
| Antoine Bellem | Gaffer |
| Richie Egan | Key Grip |
| Simon Bergstrand | 3D Artist |
| Marja Maccotta | Visual Effects Coordinator |
| Silvia Bellitto | Script Supervisor |
| Perrine Lejeune | Props |
| Dina Coughlan | Music Supervisor |
| Renaud Quertainmont | Best Boy Grip |
| Olivier Servais | First Assistant Camera |
| Aoife Thunder | Art Department Coordinator |
| Antoine Gerard | Assistant Art Director |
| Sinead Barry | Production Coordinator |
| Sébastien Lépinay | Production Manager |
| John McCarthy | Second Assistant Camera |
| Georgi Atanasov | Compositing Artist |
| Julien Naudin | Foley Artist |
| Julia Davin-Power | Set Decoration |
| Kevin Jamotte | Costume Supervisor |
| François Tiberghien | Electrician |
| Pierre-Edouard Jasmin | Grip |
| Maxence Dedry | Second Assistant Camera |
| Kim Fersling | 3D Artist |
| Simone De Salvatore | Matte Painter |
| Chris Basta | ADR Mixer |
| Kristian Eidnes Andersen | Supervising Sound Editor |
| Guillaume Renoir | Key Grip |
| Sefian Benssalem | Special Effects Technician |
| Louis Storme | Boom Operator |
| Adrien Maigre | Production Accountant |
| Peter Hjorth | Visual Effects Supervisor |
| Jennie Readman | Hair Designer |
| Niamh O'Loan | Makeup Designer |
| Rasmus Bro | Visual Effects Editor |
| Dan Stirling | ADR Recordist |
| Dirk Bombey | Sound Mixer |
| Andy Walsh | Concept Artist |
| Toby Spigel | Casting Associate |
| Aoife Quinn | Graphic Designer |
| Jonathan Shaw | First Assistant Director |
| Louis Zebo | Electrician |
| Michel Denis | Visual Effects Producer |
| Christina Jæger | Visual Effects Producer |
| Line Leth | Visual Effects Producer |
| Joanne Carstairs | Props |
| Colin Jones | Casting |
| Olivier Bisback | Stunt Coordinator |
| John McDonnell | Producer |
| Mikael Windelin | Visual Effects Producer |
| Rasmus Mølberg Meyer | Assistant Sound Editor |
| Nick Spicer | Executive Producer |
| Lorcan Finnegan | Executive Producer |
| Christophe Hollebeke | Co-Executive Producer |
| Todd Brown | Executive Producer |
| Alexander Brøndsted | Co-Producer |
| Ryan Shoup | Executive Producer |
| Aram Tertzakian | Executive Producer |
| Deirdre Levins | Associate Producer |
| Antonio Tublén | Co-Producer |
| Brunella Cocchiglia | Executive Producer |
| Maxime Cottray | Executive Producer |
| Gabe Scarpelli | Executive Producer |
| Philippe Logie | Associate Producer |
| Jackson Clough | Associate Producer |
| Jean-Yves Roubin | Co-Producer |
| Kristian Eidnes Andersen | Original Music Composer |
| Tony Condren | Stunt Coordinator |
| Barbara Hellemans | Stunt Coordinator |
| Kristina Karaeva | Stunt Double |
| Joe Condren | Stunt Coordinator |
| Rachel Walker | Stunt Double |
| Lorcan Finnegan | Story |
| Neil Guerin | Second Assistant Director |
| Tom Speirs | Third Assistant Director |
| Dave Flanagan | Property Master |
| Tricia Perrott | Post Production Supervisor |
| Cassandre Warnauts | Co-Producer |
| Jesse Eisenberg | Executive Producer |
| Imogen Poots | Executive Producer |
| Thomas Gammeltoft | Executive Producer |
| Christophe Hollebeke | Executive Producer |
| Manuel Chiche | Executive Producer |
| Violaine Barbaroux | Executive Producer |
| Kristian Eidnes Andersen | Sound Designer |
| Jacques Pedersen | Sound Designer |
| Dirk Bombey | Sound Recordist |
| Catherine Marchand | Costume Supervisor |
| Rory Dungan | Line Producer |
| Philippe Lambrechts | Supervising Art Director |
| Philip Blake | Digital Imaging Technician |
| Simon Keenan | Digital Imaging Technician |
| Ciarán Tanham | "B" Camera Operator |
| Conor Kelly | First Assistant "B" Camera |
| Sean Weiss | Camera Trainee |
| Colm Bassett | Construction Manager |
| Emilie Guéret | Best Boy Electric |
| Con Dempsey | Rigging Gaffer |
| Laura Rafferty | Costume Assistant |
| Catherine Argue | Assistant Hairstylist |
| Lorri Ann-King | Assistant Hairstylist |
| Aoife Maher | Assistant Hairstylist |
| Martin Maguire | Still Photographer |
| Maurice Pierce | Storyboard Artist |
| Greg Managhan | Drone Operator |
| Paul Cullen | Transportation Captain |
| Jackie Jarvis | Assistant Editor |
| Gary Curran | Colorist |
| Rory Gavin | Online Editor |
| Jason Cameron | Assistant Sound Editor |
| Stéphane De Rocquigny | Foley Recordist |
