James Corden
Paul Potts
Alexandra Roach
Julz
Julie Walters
Yvonne
Colm Meaney
Roland Potts
Jemima Rooper
Hydrangea
Mackenzie Crook
Braddon
Trystan Gravelle
Matthew
Sion Tudor Owen
Choirmaster
Alex Macqueen
Dr. Thorpe
Miriam Lucia
Signora Fiorentino
Stanley Townsend
Luciano Pavarotti
Di Botcher
Nurse
Jon Wennington
Talent Show Punter (uncredited)
Owen Hunte
Friend in Bar (uncredited)
Brandon Whitt
Buncle son (uncredited)
Evan Whitt
Buncle son (uncredited)
Crew
Justin Zackham
Screenplay
David Frankel
Director
Theodore Shapiro
Original Music Composer
Harvey Weinstein
Executive Producer
Florian Ballhaus
Director of Photography
Simon Cowell
Producer
Steve Whitney
Executive Producer
Jane Hooks
Co-Producer
Michael Menchel
Producer
Brad Weston
Producer
Wendy Greene Bricmont
Editor
Bob Weinstein
Executive Producer
Kris Thykier
Producer
Alexandra Joyce
Makeup Artist
Martin Childs
Production Design
Donald McInnes
Hairstylist
Christina Baker
Hairstylist
Alexandra Joyce
Hairstylist
Colleen Kelsall
Costume Design
Christina Baker
Makeup Artist
Dan Hubbard
Casting
Nick Dent
Supervising Art Director
Celia Bobak
Set Decoration
Christine Blundell
Makeup Artist
James Wakefield
Art Direction
Christine Blundell
Hairstylist
James Manning
Second Assistant Director
Peter Byrne
Focus Puller
Daniele Massaccesi
Camera Operator
Chris Lyons
Special Effects Makeup Artist
Nathaniel De'Lineadeus
Special Effects Makeup Artist
Donald McInnes
Makeup Artist
Marko Costanzo
Foley Artist
Tom Fleischman
Sound Re-Recording Mixer
Dana Sano
Music Supervisor
Taylor Swift
Songs
Jack Antonoff
Songs