Sally Phillips

Self - Narrator (voice)

Jay Aston

Self - Singer / Eurovision Winner 1981, Bucks Fizz

Chris Brooks

Self - Heart FM

Yvie Burnett

Self - Vocal Coach, X Factor, Charlotte Church & Susan Boyle

Nicki Chapman

Self - Judge, Popstars / Pop Idol

Barry Cryer

Self - Comedy Writer

Jim Davidson

Self - Contestant, Hell's Kitchen 2007

Tupele Dorgu

Self - Contestant, Soapstar Superstar

Matt Evers

Self - Professional Skater, Dancing on Ice

Gareth Gates

Self - Singer / Pop Idol Contestant

Carrie Grant

Self - Vocal Coach, Pop Idol / Fame Academy

David Grant

Self - Vocal Coach, Pop Idol / Fame Academy

Russell Grant

Self - Entertainer

Michelle Heaton

Self - Contestant, Popstars / Singer

Javine Hylton

Self - Contestant, Popstars: The Rivals

Bonnie Langford

Self - Contestant, Dancing on Ice 2006 & 2014 / Performer

Zoe Lyons

Self - Comedian

Joe McElderry

Self - Winner, X Factor 2009

Jon Morter

Self - Social Media Commentator

Nina Myskow

Self - TV Critic & Former Talent Show Judge, New Faces

Kevin O'Sullivan

Self - TV Critic, Daily Mirror

Andy Orr

Self - Contestant, Irish Popstars

Richard Park

Self - Head Judge, Fame Academy

Jonathan Shalit

Self - Charlotte Church's Former Agent

Sinitta

Self - Singer

Anthea Turner

Self - Contestant, Dancing on Ice 2013

Louis Walsh

Self - Talent Show Judge, Irish Popstars / Popstars: The Rivals

Pete Waterman

Self - Judge, Pop Idol

Ann Widdecombe

Self - Contestant, Strictly Come Dancing

Susan Boyle

Self (archive footage)

Darius Campbell

Self (archive footage)

Charlotte Church

Self (archive footage)

Cheryl

Self (archive footage)

Simon Cowell

Self (archive footage)

Nadine Coyle

Self (archive footage)

Samia Longchambon

Self (archive footage)

Will Young

Self (archive footage)

Lena Zavaroni

Self (archive footage)

James Fox

Self - Fame Academy (uncredited)

Sarah J. Price

Herself - Pop Stars (uncredited)