 | Aaron Taylor-Johnson als William |
 | Imogen Poots als Eva |
 | Matthew Beard als Jim |
 | Hannah Murray als Emily |
 | Tuppence Middleton als Candy |
 | Daniel Kaluuya als Mo |
 | Megan Dodds als Grace |
 | Michelle Fairley als Rosie |
 | Nicholas Gleaves als Paul |
 | Jacob Anderson als Si |
 | Ophelia Lovibond als Charlotte |
 | Richard Madden als Ripley |
 | Matthew Ashforde als Jim's Father |
 | Dorothy Atkinson als Emily’s Mother |
 | Alex Blake als Man on Mobile Phone |
 | Noa Bodner als Woman at Book Launch |
 | Amanda Boxer als Mrs. Sinclair |
 | Lorraine Cheshire als Yorkshire Housewife |
| Matthew Fenton als Young Jim |
 | Elarica Johnson als Ushi |
| Ross Gurney-Randall als Large Camden Man |
 | Gerald Home als Tony Layton |
| Karin Ichihashi als Japanese Girl |
| Abigail Leonard als Gymnastics Coach |
| James Lester als Young 'Dorfli' Boy |
| Rebecca McLintock als Keisha |
| Jodie Miller als Tony Layton as Girl |
 | Mary Roscoe als Psychiatrist |
| Scarlett Sabet als Betsy |
| Alex Peck als William as Girl |
| Simon Silva als Brazilian Bully #1 |
| Michael Smart als Brazilian Bully #2 |
| Fabio Pedrosa als Brazilian Bully #3 |
| Claudio Moniz als Brazilian Bully #4 |
| Emily Spires als Laura |
| Oliver Swainston als Brazilian Boy |
| Greg Bennett als Police Constable |
| Elizabeth Goram-Smith als Camden Girl |
| Billy Holland als Flashback Boy |
| Lindsay Lucas-Bartlett als Goth Girl |
| Sammy Measom als Gang Member |
| Panayiota Panteli als Chatroom Guest |
| Tedi Versace als Shopper |
| Hideo Nakata | Director |
| Enda Walsh | Screenplay |
| Enda Walsh | Theatre Play |
| Kenji Kawai | Original Music Composer |
| Alison Owen | Producer |
| Nina Gold | Casting |
| Jon Henson | Production Design |
| Laura Hastings-Smith | Producer |
| Paul Trijbits | Producer |
| Julian Day | Costume Design |
| Benoît Delhomme | Director of Photography |
| Masahiro Hirakubo | Editor |
| Robert Wischhusen-Hayes | Set Decoration |
| Marco Ciglia | First Assistant Director |
| Matthew Hanson | Second Assistant Director |
| Christian Rigg | Third Assistant Director |
| Ewan Dunbar | Assistant Director Trainee |
| Kriss Landin | Script Supervisor |
| Maya Amsellem | Executive Producer |
| Katherine Butler | Executive Producer |
| Mark Foligno | Executive Producer |
| Sharon Harel-Cohen | Executive Producer |
| Tania Reichert-Facilides | Executive Producer |
| Eve Schoukroun | Executive Producer |
| Hannah Farrell | Associate Producer |
| Faye Ward | Associate Producer |
| Andrew Litvin | Line Producer |
| Gareth Cousins | Art Direction |
| Patrick Rolfe | Supervising Art Director |
| Kate Warwick-Oliver | Makeup Artist |
| Alex King | Assistant Makeup Artist |
| Marese Langan | Makeup & Hair |
| Lisa Pemberton | Assistant Makeup Artist |
| Andrew Dearnley | Post-Production Manager |
| Fiona Lamptey | Production Manager |
| Alistair Hopkins | Post Production Supervisor |
| Stuart Jones | Assistant Director |
| Jake Rollins | Assistant Director |
| Neal Champion | Special Effects Supervisor |
| Nick P. Phillips | Special Effects Technician |
| Brown Bartholomew | Thanks |
| Noel Tovey | Thanks |
| Emma Wilkinson | Thanks |
| Allegra Winton | Thanks |
| Jason Rayton | Thanks |
| Emma Slade | Thanks |
| Matt Amos | Painter |
| Andrea Bond | Painter |
| Phil Claxton | Painter |
| Derek Cowie | Painter |
| Zaman Ghulam | Painter |
| Alex McDonald | Painter |
| Jody Raynes | Painter |
| Amanda Waddington | Painter |
| Harvey Woodward | Painter |
| Bruce Barnes | Carpenter |
| Tim Cook | Carpenter |
| Dan Marsden | Carpenter |
| Keith Mowatt | Carpenter |
| Ben Rai Green | Carpenter |
| Mark Wallis | Carpenter |
| Sam Wells | Carpenter |
| Gillian Campbell | Scenic Artist |
| Christopher Chandler | Dressing Prop |
| Stuart Headley-Read | Dressing Prop |
| Robert Judd | Dressing Prop |
| Craig Cheeseman | Property Master |
| Lisa Collins | Set Painter |
| Noel Cowell | Props |
| Dan Crandon | Construction Manager |
| Kevin Day | Standby Property Master |
