Renée Zellweger

(Judy Garland)

Jessie Buckley

(Rosalyn Wilder)

Finn Wittrock

(Mickey Deans)

Rufus Sewell

(Sid Luft)

Gemma-Leah Devereux

(Liza Minnelli)

Michael Gambon

(Bernard Delfont)

Bella Ramsey

(Lorna Luft)

Andy Nyman

(Dan)

Gaia Weiss

(Abbie)

Philippe Spall

(L.A. Cab Driver)

Fenella Woolgar

(Margaret Hamilton)

Royce Pierreson

(Burt Rhodes)

Phil Dunster

(Ben)

Darci Shaw

(Young Judy)

Diana Alexandra Pocol

(Young Ava Gardner)

John Dagleish

(Lonnie Donegan)

Richard Cordery

(Louis B. Mayer)

Daniel Cerqueira

(Stan)

Lewin Lloyd

(Joey Luft)

Tom Durant-Pritchard

(Ken Frisch)

Adrian Lukis

(Dr. Hargreaves)

Gus Barry

(Mickey Rooney)

Jodie McNee

(Vivian)

Gus Brown

(Porter Reg)