Renée Zellweger character Judy Garland
Rufus Sewell character Sidney Luft
Finn Wittrock character Mickey Deans
Michael Gambon character Bernard Delfont
Richard Cordery character Louis B. Mayer
Jessie Buckley character Rosalyn Wilder
Bella Ramsey character Lorna Luft
John Dagleish character Lonnie Donegan
Gemma-Leah Devereux character Liza Minnelli
Tim Ahern character Walter Rickerts
Bentley Kalu character Georgie
Arthur McBain character Askith
Phil Dunster character Ben
David Shields character Bailey
John Mackay character Johnnie Ray
Darci Shaw character Young Judy Garland
Tom Durant Pritchard character Ken Frisch
Andy Nyman character Dan
Daniel Cerqueira character Stan
Royce Pierreson character Burt
David Rubin character Noel
Natasha Powell character Ethel Gumm
Israel Ruiz character London Photographer
Lucy Russell character Publicist
Matt Nalton character Music Director
