 | Beanie Feldstein als Johanna Morrigan |
 | Paddy Considine als Pat Morrigan |
 | Sarah Solemani als Angie Morrigan |
 | Alfie Allen als John Kite |
 | Frank Dillane als Tony Rich |
 | Laurie Kynaston als Krissi Morrigan |
 | Arinzé Kene als Kenny |
 | Tadhg Murphy als Andy Rock |
 | Ziggy Heath als Derby |
 | Bobby Schofield als Pricey |
 | Chris O'Dowd als Alan 'Wilko' Wilkinson |
 | Joanna Scanlan als Mrs. Belling |
 | Emma Thompson als Amanda |
 | Dónal Finn als Karl Boden |
 | Stellan Powell als Lupin Morrigan |
| Freya Perry als Morrigan Twin |
| Harper Perry als Morrigan Twin |
| Violet Amer als Morrigan Twin |
| Andi Oliver als Donna Summer |
 | Michael Sheen als Sigmund Freud |
 | Sue Perkins als Emily Bronte |
 | Mel Giedroyc als Charlotte Bronte |
 | Alexei Sayle als Karl Marx |
 | Lily Allen als Elizabeth Taylor |
 | Gemma Arterton als Maria Von Trapp |
 | Jameela Jamil als Cleopatra |
 | Lucy Punch als Sylvia Plath |
 | Sharon Horgan als Jo March |
| Ralph Prosser als Lee Veltman |
| Johnny Mindlin als Sound Man |
| Samantha Morrish als Female TV Runner |
 | Vicki Pepperdine als Smart DSS Woman |
 | Patsy Ferran als Snow Pixie |
 | Asheq Akhtar als Mr. Sanghera |
 | Edward Bluemel als Strange Cases Manager |
 | Hammed Animashaun als Ed Edwards |
 | Tobi Bamtefa als Gig Doorman |
| Oliver Barrs als Hallows Drummer |
| Antony Somers als Press Officer |
 | Bob Mortimer als Awards Host |
| Ciara May Wilson als Goth School Girl |
 | John Peters als Cab Driver |
 | Sonia Goswami als Pediatrician Alex Slade (uncredited) |
 | Ryan Nolan als Damon Yardley (uncredited) |
| Alison Owen | Producer |
| Debra Hayward | Producer |
| Shaheen Baig | Casting |
| Coky Giedroyc | Director |
| Caitlin Moran | Writer |
| Gareth C. Scales | Editor |
| Caitlin Moran | Book |
| Caitlin Moran | Executive Producer |
| Ollie Madden | Executive Producer |
| Sue Bruce-Smith | Executive Producer |
| Daniel Battsek | Executive Producer |
| Tim Headington | Executive Producer |
| Lia Buman | Executive Producer |
| Emma Berkofsky | Executive Producer |
| Zygi Kamasa | Executive Producer |
| Bonnie-Chance Roberts | Co-Producer |
| Michael S. Constable | Line Producer |
| Hubert Taczanowski | Director of Photography |
| Gary Dollner | Editor |
| Amanda McArthur | Production Design |
| Oli Julian | Original Music Composer |
| Nick Angel | Music Supervisor |
| Stephanie Collie | Costume Design |
| Sue Wyburgh | Hair Designer |
| Sue Wyburgh | Makeup Designer |
| Non Eleri Hughes | Script Supervisor |
| Sven Arnstein | Second Unit Director |
| Filiz-Theres Erel | Production Manager |
| Rachel Beaconsfield Press | Production Coordinator |
| Cecily Colahan | Assistant Production Coordinator |
| Louisa Shanks | Production Secretary |
| Emily Perry | Production Secretary |
| Susie Welstead | Production Accountant |
| Jo Farrugia | Additional Casting |
| Michelle Giovanni | Casting Associate |
| Gabby King | Casting Assistant |
| Robyn Henderson | First Assistant Director |
| Andrew Mackie | Second Assistant Director |
| Jack Wren | Third Assistant Director |
| Elaine Ford | Stunt Coordinator |
| Josie Forman | Stunts |
| Marvin Campbell | Stunts |
| Russell MacLeod | Stunts |
| Peter Pedrero | Stunts |
| Neil Stoddart | Stunts |
| Paul Tomlinson | Location Manager |
| Jess Waluga | Assistant Location Manager |
| Mark Clementson | Unit Manager |
| Celia Linnett | Location Assistant |
| Beth Lewis | Costume Supervisor |
| Johanna Elf | Assistant Costume Designer |
| Ailsa Windsor | Assistant Costume Designer |
| Rebecca Jempson | Costume Standby |
| Hayley Clair Stewart | Costume Standby |
| Bea Millas | Makeup Supervisor |
| Annie Russell | Makeup Artist |
| Siobhán McGrath | Makeup Artist |
| Celia De La Hey | Set Decoration |
| Lucy Bullen | Graphic Designer |
| Chris Ulusele | Property Master |
| John Reid | Art Direction |
| Dave Reed | Construction Manager |
| Robert Haynes | Standby Art Director |
| Richard Swingle | "B" Camera Operator |
| Loren Filis | Second Assistant Camera |
| James Harrison | First Assistant Camera |
| Felix Pickles | First Assistant "B" Camera |
| Toby McKay | Second Assistant "B" Camera |
| Kristin Davis | Digital Imaging Technician |
| Kevin Foy | Grip |
| Neil Blakesley | Grip |
| Stuart King | Gaffer |
| Russell Tann | Best Boy Electric |
| Adrian Sworn | Electrician |
| Damian Smyth | Electrician |
| Rob Entwistle | Production Sound Mixer |
| Adrienne Taylor | Boom Operator |
| Taz Fairbanks | Boom Operator |
| Brianna Cook | First Assistant Editor |
| Alice Sainsbury | Post Production Coordinator |
| Jamie Welsh | Colorist |
| Rob Hughes | Sound Re-Recording Mixer |
| Pete Gates | Supervising Dialogue Editor |
| Laura MacGregor | Dialogue Editor |
| Brian Gilligan | Sound Designer |
| Kallis Shamaris | ADR Editor |
| Paul Hanks | Foley Artist |
| Simon Trundle | Foley Mixer |
| Andy Quinn | Visual Effects Supervisor |
| Carrie Rishel | Visual Effects Producer |
| Sascha Fromeyer | Visual Effects Supervisor |
| Zoe Flower | Unit Publicist |
| Sam Thompson | Orchestrator |
