 | Andrew Scott als Adam |
 | Paul Mescal als Harry |
 | Jamie Bell als Dad |
 | Claire Foy als Mum |
 | Carter John Grout als Young Adam |
 | Ami Tredrea als Waitress |
 | Cameron Ashplant als Teen (uncredited) |
 | Lincoln R. Beckett als Gay Bar Goer (uncredited) |
| Jack Cronin als Teen (uncredited) |
| Christian Di Sciullo als Shopper (uncredited) |
| Hussein Kutsi als Taxi Driver (uncredited) |
 | Gsus Lopez als Club Goer (uncredited) |
| Jack Pallister als Dancer (uncredited) |
| Guy Robbins als Shopper (uncredited) |
| Darren Ryames als Passerby (uncredited) |
| Zachary Timmis als Teen (uncredited) |
| Sean Tizzard als Dad on Train (uncredited) |
| Carolina Van Wyhe als Lover (uncredited) |
 | Oliver Franks als Lover (uncredited) |
| Andrew Haigh | Director |
| Taichi Yamada | Novel |
| Graham Broadbent | Producer |
| Peter Czernin | Producer |
| Sarah Harvey | Producer |
| Ben Knight | Executive Producer |
| Diarmuid McKeown | Executive Producer |
| Ollie Madden | Executive Producer |
| Daniel Battsek | Executive Producer |
| Farhana Bhula | Executive Producer |
| Jonathan Alberts | Editor |
| Sarah Blenkinsop | Costume Design |
| Jamie D. Ramsay | Director of Photography |
| Nicola Buck | Makeup Supervisor |
| Sarah Finlay | Production Design |
| Marian Murray | Set Decoration |
| Joakim Sundström | Supervising Sound Editor |
| Diana Wyand | Costume Supervisor |
| Maurizio Detomaso | Assistant Art Director |
| Jorge Alarcón | Dialogue Editor |
| Thomas Markwick | Boom Operator |
| Marco Petrucco | First Assistant Director |
| Arizona Eastwood | Second Assistant Director |
| Michael King | Third Assistant Director |
| Martin Jones | Special Effects Technician |
| Scott McIntyre | Special Effects Supervisor |
| Alexander Bracq | Stunt Double |
| Kenny Knight | Stunts |
| Kahleen Crawford | Casting |
| Emilie Levienaise-Farrouch | Original Music Composer |
| Carla Morris | Casting Associate |
| Per Boström | Sound Re-Recording Mixer |
| Patrick Ghislain | Foley Mixer |
| Christer Melén | Sound Effects Editor |
| Paul O'Hara | Visual Effects Producer |
| Dearbhaile Collins | Camera Trainee |
| DanTram Nguyen | Head of Production |
| Katie Goodson | Head of Production |
| Andrew Haigh | Writer |
| Jeremy Campbell | Co-Producer |
| Emma Mager | Co-Producer |
| Amaka Ugwunkwo | Unit Production Manager |
| Bill Brown | Supervising Art Director |
| Zoe Clare Brown | Hair Designer |
| Zoe Clare Brown | Makeup Designer |
| Stevie Hayward | Production Sound Mixer |
| Stu Laurie | Script Supervisor |
| Susie Bookers | Location Manager |
| Richard Juneman | Controller |
| Connie Farr | Music Supervisor |
| Luke Deering | Assistant Art Director |
| Nicola Buck | Hair Supervisor |
| Eliza Heslop | Casting Associate |
| Ander Luque | Foley Editor |
| James Bowman | ADR Mixer |
| Max Clarke | ADR Mixer |
| James Hyde | ADR Mixer |
| Erdem Gonulay | Digital Compositor |
| Olivia Hulme | Assistant Costume Designer |
| Katie Lovie | Extras Casting |
| Anthony Benjamin | Best Boy Grip |
| Jason Wingrove | First Assistant Camera |
| Roland C. Phillips | Second Assistant Camera |
| Nick Kenealy | Video Assist Operator |
| Jason Stevens | Dailies Operator |
| Edward Johns | First Assistant Editor |
| Chloe Kilby | First Assistant Editor |
| Mat Bartram | Score Engineer |
| Francesco Le Metre | Music Editor |
| Neil Stemp | Music Editor |
| Freddie Robarts | Production Assistant |
| Matt Curtis | Title Designer |
| Takuro Ishizaka | Associate Producer |
| Lauren Doss | Assistant Set Decoration |
| Alysia Daly | Makeup Trainee |
| Olivia Ashman | Makeup & Hair |
| Alistair Hopkins | Post Production Supervisor |
| Ismael Abdulahi | Assistant Director Trainee |
| Paolo De Battista | Additional Third Assistant Director |
| Jess Alexander | Graphic Designer |
| Dave Blacker | Props |
| Martin Brown | Standby Carpenter |
| Angus Carter | Standby Art Director |
| Alfie Winston Davies | Props |
| Marcus Doherty | Standby Rigger |
| Chris Edwards | Props |
| Alice Field-Rayner | Petty Cash Buyer |
| Sarah Fletcher | Art Department Trainee |
| Adio Fok | Graphic Designer |
| Andrew Holland | Dressing Prop |
| Lloyd Inkson | Props |
| Joe Linfield | Property Master |
| Rory Angel O'Brien | Scenic Artist |
| Greg Page | Dressing Prop |
| Steve Patterson | Construction Manager |
| Oliver Gillen Toon | Standby Art Director |
| Daniel Valentine | Dressing Prop |
| Emily Roberts | Art Department Assistant |
| Tom Anderson | Second Assistant Sound |
| Paul Conway | ADR Supervisor |
| George Elliott | Sound Mix Technician |
| Joe Gidley | Second Assistant Sound |
| Maisie Goodreid | Sound Mix Technician |
| Stevie Haywood | Sound Mixer |
| Declan Ilett | Sound Mix Technician |
| Ander Luque | Assistant Dialogue Editor |
| Jasper Thorn | Sound Mix Technician |
| Chris Whiteside | ADR Mixer |
| Jon James Smith | Special Effects Technician |
| Steven Whitley | Stunts |
| Charine Bederar | Visual Effects Producer |
| Alex Fynn | VFX Editor |
| Simon Hughes | Visual Effects Supervisor |
| Eric Jacobo | Visual Effects Coordinator |
| Chloe King | Rotoscoping Artist |
| Ivaylo Marinov | Visual Effects Compositor |
| Dolores McGinley | Visual Effects Supervisor |
| Ivor Middleton | Visual Effects Compositor |
| Evelyn Minango | Visual Effects Producer |
| Jeanette Monero | Compositing Supervisor |
| Dillan Nicholls | 2D Supervisor |
| Jane Paton | 2D Artist |
| Maria Peralta Ramos | VFX Artist |
| Ludmila Sigismondo | VFX Artist |
| Michael Vodden | Rotoscoping Artist |
| Alex Metliss | VFX Artist |
| Dylan Bland | Dolly Grip |
| Craig Coggan | Rigging Gaffer |
| Lara Diamond | Camera Trainee |
| Lucian Farwell | Camera Trainee |
| Michael Hannan | First Assistant "B" Camera |
| Oscar May | Still Photographer |
| Robbie Mayo | Camera Trainee |
| Michael Montgomery-Salter | Second Assistant Camera |
| Jordan Purcell | Rigging Gaffer |
| Charlotte Scott-Gray | Loader |
| Joseph Bicknell | Colorist |
| Ellie Adams | Post Production Coordinator |
| Phillip Brereton | Assistant Editor |
| Theresa Crooks | Color Assistant |
| Julian Debrah | Post Production Coordinator |
| Diarmuid Hughes | Post Production Producer |
| Gabriel Hunt | VFX Editor |
| Michael Hopkins | Post Production Coordinator |
| Jonas Jangvad | Color Assistant |
| Mike Quigley-Smith | Dailies Operator |
| Gemma Saunders | Finishing Producer |
| Benjamin Sayers | First Assistant Editor |
| Christina Humphreys | Location Assistant |
| Pat Karam | Location Manager |
| Catherine Myers | Location Manager |
| Hannah Sapira | Assistant Location Manager |
