Name	Known for
Graham Norton Self - Presenter Self - Presenter See fewer	Eurovision Song Contest: The Story of Fire Saga (2020)
Kevan Allen Choreographer Choreographer See fewer	Great Performances (1971)
John Barrowman Self - Judge Self - Judge See fewer	Torchwood (2006)
Jason Donovan Self Self See fewer	Neighbours (1985)
Connie Fisher Self Self See fewer	The Wedding Dress (2009)
Stephen Gately Self Self See fewer	Billy Elliot (2000)
David Grindrod Self Self See fewer	Mamma Mia! Here We Go Again (2018)
Ben James-Ellis Self - Potential Joseph (as Ben Ellis) Self - Potential Joseph (as Ben Ellis) See fewer	Touched by an Angel (1994)
Bill Kenwright Self - Judge Self - Judge See fewer	The Fanatic (2019)
Andrew Lloyd Webber Self - Chief Judge (as Lord Andrew Lloyd Webber) Self - Chief Judge (as Lord Andrew Lloyd Webber) See fewer	The Phantom of the Opera (2004)
Lee Mead Self Self See fewer	Casualty (1986)
Donny Osmond Self Self See fewer	Mulan (1998)
Tim Rice Self (as Sir Tim Rice) Self (as Sir Tim Rice) See fewer	Aladdin (1992)
Ryan Ryder Self - Potential Joseph (as Craig Chalmers) Self - Potential Joseph (as Craig Chalmers) See fewer	Storm of Kings (2016)
Zoe Tyler Self - Judge (as Zoë Tyler) Self - Judge (as Zoë Tyler) See fewer	Sunday for Sammy (2008)
Denise Van Outen Self - Judge Self - Judge See fewer	Run for Your Wife (2012)