Stars (in credits order)
Kate Thornton
Voice-overvoice
Simon Cowell
Self
Sharon Osbourne
Louis Walsh
4Tune
Themselves
Andy Abraham
Laura Conway
Nicholas Dorsett
Fleur East
Brenda Edwards
Rachel Hunter
SelfarchiveFootage
Addictiv Ladies
Maria Lawson
Phillip Magee
Stephen Mulhern
Holly & Stephen's Saturday Showdown presenterarchiveFootage
Ozzy Osbourne
Andy Pemberton
Carl Pemberton
Chico Slimani
The Conway Sisters
ThemselvesarchiveFootage
Shayne Ward
Holly Willoughby
Chenai Zinyuku
Aretha Franklin
Mentioneduncredited
Gladys Knight
Bonnie Langford
Chicago Musical Backstageuncredited