 | Renée Zellweger als Judy Garland |
 | Jessie Buckley als Rosalyn Wilder |
 | Finn Wittrock als Mickey Deans |
 | Rufus Sewell als Sid Luft |
 | Michael Gambon als Bernard Delfont |
 | Richard Cordery als Louis B. Mayer |
 | Royce Pierreson als Burt Rhodes |
 | Darci Shaw als Young Judy |
 | Andy Nyman als Dan |
 | Daniel Cerqueira als Stan |
 | Bella Ramsey als Lorna Luft |
 | Lewin Lloyd als Joey Luft |
 | Tom Durant-Pritchard als Ken Frisch |
 | John Dagleish als Lonnie Donegan |
 | Adrian Lukis als Dr Hargreaves |
 | Gemma-Leah Devereux als Liza Minnelli |
 | Gus Barry als Mickey Rooney |
 | Jodie McNee als Vivian |
 | Gus Brown als Porter Reg |
| Matt Nalton als Music Director |
 | Bentley Kalu als Georgie |
 | Martin Savage als Mr. Horowitz |
 | Phil Dunster als Ben |
 | Gaia Weiss als Abbie |
 | Lucy Russell als Publicist |
 | John Mackay als Johnnie Ray |
 | Natasha Powell als Ethel Gumm |
 | Bradley Banton als James |
 | Ed Stoppard als Interviewer |
 | David Shields als Photographer |
 | Tim Ahern als Walter Rickerts |
 | Peter Forbes als Richardson |
 | Arthur McBain als Askith |
 | David Rubin als Noel |
| Anthony Shuster als Male Audience Member 1 |
| Alistair Cope als Male Audience Member 2 |
 | Jack Jagodka als Tanned Man |
 | Fenella Woolgar als Margaret Hamilton |
 | Brontë Lavine als Fine Feather Dancer |
| Emily Warner als Fine Feather Dancer |
 | Flora Dawson als Fine Feather Dancer |
 | Gillian Parkhouse als Fine Feather Dancer |
| Jennifer Davison als Fine Feather Dancer |
| Jenny Wickham als Fine Feather Dancer |
 | Joelle Dyson als Fine Feather Girl |
 | Lucy Carter als Fine Feather Dancer |
| Rebecca Fennelly als Fine Feather Dancer |
 | Sam Wingfield als Fine Feather Dancer |
 | Robert Ryan als Paparazzi Photographer |
| Rupert Goold | Director |
| David Livingstone | Producer |
| Melanie Oliver | Editor |
| Ole Bratt Birkeland | Director of Photography |
| Stella Fox | Set Decoration |
| Jany Temime | Costume Design |
| Tilly Scandrett | Art Direction |
| Tom Edge | Screenplay |
| Fiona Weir | Casting Director |
| Alice Searby | Casting Director |
| Gabriel Yared | Original Music Composer |
| Kave Quinn | Production Design |
| Pete Shilaimon | Executive Producer |
| Cameron McCracken | Executive Producer |
| Charles Diamond | Executive Producer |
| Aaron Levene | Executive Producer |
| Laurence Myers | Executive Producer |
| Mickey Liddell | Executive Producer |
| Andrea Scarso | Executive Producer |
| Ellis Goodman | Executive Producer |
| Jim Spencer | Co-Producer |
| Lee Dean | Executive Producer |
| Rose Garnett | Executive Producer |
| Hilary Williams | Executive Producer |
| Jeremy Woodhead | Hair Designer |
| Jeremy Woodhead | Makeup Designer |
| Matt Dunkley | Music Director |
| Matt Dunkley | Conductor |
| Becky Bentham | Music Supervisor |
| Karen Elliott | Music Supervisor |
| Stephen Carney | First Assistant Director |
| Polly Duval | Post Production Supervisor |
| Louise Killin | Unit Production Manager |
| James Price | Supervising Art Director |
| Adrian Bell | Production Sound Mixer |
| Lee Herrick | Supervising Sound Editor |
| Robert Ireland | Sound Designer |
| Paul Cotterell | Sound Re-Recording Mixer |
| Caitlin Spiller | First Assistant Editor |
| Paul John Chandler | Music Editor |
| Julius Ogden | First Assistant "A" Camera |
| Arron Monkman | Second Assistant "A" Camera |
| Nic Milner | "B" Camera Operator |
| Jason Walker | First Assistant "B" Camera |
| Daniel Wombwell | Second Assistant "B" Camera |
| John Ferguson | Steadicam Operator |
| Martina Massimei | Camera Trainee |
| James Hogarth | Digital Imaging Technician |
| Andy Sauer | Key Grip |
| Paula Casarin | Script Supervisor |
| Andrew Bonner | Production Manager |
| Aneta Chalas | Production Coordinator |
| Jordan Barbour | Assistant Production Coordinator |
| Nicola Bisello | Production Secretary |
| Gemma Wright | Second Assistant Director |
| Liam Shaw | Third Assistant Director |
| Adam Ridge | Boom Operator |
| Jennifer Annor | Sound Assistant |
| Brett Tyne | Dialect Coach |
| Paddy Paddison | Standby Art Director |
| Alice Sutton | Draughtsman |
| Frances Bennett | Graphic Designer |
| Gabrielle Williams | Assistant Set Decoration |
| Rachel Garlick | Storyboard Artist |
| Nigel Hughes | Scenic Artist |
| Owen Harrison | Property Master |
| Martin Mandeville | Costume Supervisor |
| Richard Davies | Assistant Costume Designer |
| Harriet Kendall | Assistant Costume Designer |
| Claire Mitchell | Costumer |
| Elizabeth Kane | Costumer |
| Daisy Babbington | Costumer |
| Terry Archer | Costumer |
| Barbara Taylor | Makeup Supervisor |
| Barbara Taylor | Hair Supervisor |
| Renata Gilbert | Makeup & Hair |
| Deborah Jarvis | Makeup & Hair |
| Robb Crafer | Makeup & Hair |
| Debbi Salmon | Makeup & Hair |
| Morag Smith | Makeup & Hair |
| Natasha Ladek | Wig Designer |
| Paul Bowring | Construction Manager |
| Joe Macdonald | Gaffer |
| Danny Griffiths | Best Boy Electric |
| Jack Powell | Rigging Gaffer |
| Martin Winton | Electrician |
| Jenni Suitiala | Electrician |
| Joe Hissey | Electrician |
| Matt Lumley | Electrician |
| Vince Madden | Rigging Gaffer |
| Rowan Haughey | Electrician |
| Jason Wheeler | Location Manager |
| Mark Grimwade | Location Manager |
| Ben Sanderson | Assistant Location Manager |
| Laura Cheese | Assistant Location Manager |
| Jeanne Caboche | Location Assistant |
| Maxine Stanley | Production Accountant |
| Sarah Wilson | Casting Assistant |
| Elizabeth Himelstein | Dialect Coach |
| Lynne Page | Choreographer |
| Luke Fetherston | Choreographer |
| Chris Reynolds | Special Effects Supervisor |
| Simon Trundle | Foley Mixer |
| Paul Hanks | Foley Artist |
| Ian Waggott | Foley Artist |
| Nick Baldock | ADR Mixer |
| Drew Jones | Visual Effects Director |
| Paul Round | Visual Effects Supervisor |
| Rob Pizzey | Digital Colorist |
| Ellen Steers | Unit Publicist |
| David Hindley | Still Photographer |
| Andy Blackburn | Transportation Coordinator |
| Peter Quilter | Theatre Play |
