Trailer
 | Rooney Mara as Una Spencer |
 | Ben Mendelsohn as Ray Brooks |
 | Riz Ahmed as Scott |
 | Ruby Stokes as young Una Spencer |
 | Tara Fitzgerald as Andrea |
 | Natasha Little as Yvonne |
 | Tobias Menzies as Mark |
 | Indira Varma as Sonia |
 | Poppy Corby-Tuech as Poppy |
 | Isobelle Molloy as Holly |
 | Ciarán McMenamin as John |
 | David Shields as Joe |
 | Sophie Stanton as Carol |
 | Sydney Wade as Amy |
 | Gráinne Keenan as Jenny |
 | Emilee Roscamp as Emma |
 | Dan Ball as Nick |
 | Xanthe Gibson as Leah |
 | Jessica Jean Harland Stubbs as Jade |
| Katie Money as Gemma |
| Alexander Bracq as Packing Staff |
 | Richard Cunningham as Prosecutor |
 | Madeleine Brolly as Courtroom Clerk |
 | Barney White as Policeman 1 |
| Brett Allen as Policeman 2 |
 | Lucas Jones as Nightclub Guest (uncredited) |
| Production | |
| Aaron Hartley | Executive Producer |
Directing | |
| Benedict Andrews | Director |
Production | |
| Patrick Daly | Producer |
| Jean Doumanian | Producer |
Editing | |
| Nick Fenton | Editor |
Writing | |
| David Harrower | Screenplay |
| David Harrower | Theatre Play |
Camera | |
| Thimios Bakatakis | Director of Photography |
Production | |
| Maya Amsellem | Producer |
Sound | |
| Danny Hambrook | Sound Mixer |
Art | |
| Fiona Crombie | Production Design |
Sound | |
| Jed Kurzel | Original Music Composer |
Production | |
| Kahleen Crawford | Casting |
Sound | |
| Matis Rei | Sound Effects Editor |
Production | |
| Celia Duval | Co-Producer |
Costume & Make-Up | |
| Jan Sewell | Makeup Designer |
| Jan Sewell | Hair Designer |
| Jan Sewell | Prosthetic Designer |
Crew | |
| Andreas Petrides | Stunt Coordinator |
| Guy List | Stunt Coordinator |
| Rory Mulroe | Stunts |
| Georgia Wiseman | Stunt Double |
Production | |
| Kathryn Willingham | Associate Producer |
| Saul Nathan-Kazis | Associate Producer |
Directing | |
| Simon Hedges | First Assistant Director |
Sound | |
| Danny Hambrook | Production Sound Mixer |
Lighting | |
| Paul Sallent | Gaffer |
Camera | |
| Johnny Donne | Key Grip |
Art | |
| Chris Cull | Property Master |
Production | |
| Henry Woolley | Location Manager |
| Alan Gavin | Production Accountant |
Crew | |
| Meg Clark | Post Production Supervisor |
Sound | |
| Stephen Griffiths | Supervising Sound Editor |
| Steve Single | Dialogue Editor |
| Steve Single | Sound Re-Recording Mixer |
| Ian Neil | Music Supervisor |
Production | |
| Polly Jefferies | Production Coordinator |
| Richard Todd | Assistant Production Coordinator |
| Mark Arscott | Production Runner |
Camera | |
| Alf Tramontin | Steadicam Operator |
| Ashley Bond | First Assistant Camera |
| Woody Gregson | Second Assistant Camera |
| Zoe Roberts | Camera Trainee |
| James Shovlar | Digital Imaging Technician |
Directing | |
| Jayne Spooner | Script Supervisor |
| San Davey | Script Supervisor |
| Kate Selby | Second Assistant Director |
| Callum Taylor | Third Assistant Director |
Art | |
| Louise Lannen | Art Department Assistant |
Lighting | |
| Paul Brewster | Best Boy Electric |
| Mike Sherno | Electrician |
| Joshua Green | Electrician |
Crew | |
| Paul Helm | Generator Operator |
Production | |
| Andrew Hammond | Assistant Accountant |
Costume & Make-Up | |
| Emily Newby | Assistant Costume Designer |
| Rose Love | Costumer |
| Nicole Stafford | Makeup & Hair |
| Agnes Legere | Makeup & Hair |
| Lizzie Mair Davies | Makeup & Hair |
Art | |
| Paul Bowring | Construction Manager |
Production | |
| Jess MacDonald | Assistant Location Manager |
| Oliver Bradbury | Unit Manager |
| Sam Millner | Location Assistant |
| Caroline Stewart | Casting Assistant |
Crew | |
| Neil Swain | Dialect Coach |
Camera | |
| Nicola Dove | Still Photographer |
Crew | |
| Kirsty Langsdale | Unit Publicist |
| Shaun Steer | Security |
Editing | |
| William Blunden | First Assistant Editor |
Sound | |
| Alex Joseph | Sound Designer |
| Dafydd Archard | Sound Re-Recording Mixer |
| Richard Kondal | Sound Re-Recording Mixer |
| Louise Brown | Foley Editor |
| Simon Epstein | Foley Editor |
Editing | |
| Adam Inglis | Colorist |
| Filipe Fernandes | Colorist |
| Víctor Escribano | Online Editor |
Sound | |
| Mark Appleby | ADR Mixer |
| Simon Epstein | Foley Mixer |
| Paula Boram | Foley Artist |
| Louise Brown | Foley Artist |
Production | |
| Ron Burkle | Executive Producer |
| Jason Cloth | Executive Producer |
| Aaron L. Gilbert | Executive Producer |
| Sharon Harel-Cohen | Executive Producer |
| George S. Kaufman | Executive Producer |
| David Kosse | Executive Producer |
| Terry Allen Kramer | Executive Producer |
| Kevin Loader | Executive Producer |
| Andrew Pollack | Executive Producer |
| Eve Schoukroun | Executive Producer |
Art | |
| Tim Blake | Supervising Art Director |
| Katie Money | Art Direction |
| Emily Norris | Art Direction |
| Alice Felton | Set Decoration |
Costume & Make-Up | |
| Stephen Noble | Costume Design |
