Name	Known for
Ashley Banjo Self - Special Guest (as Diversity) Self - Special Guest (as Diversity) See fewer	StreetDance 3D (2010)
Simon Cowell Self - Judge Self - Judge See fewer	Scary Movie 3 (2003)
The D-Day Darlings Themselves - Contestant Themselves - Contestant See fewer	The D-Day Darlings: Sweetheart (Acoustic Version) (2020)
Diversity Themselves - Special Guest Themselves - Special Guest See fewer	StreetDance 3D (2010)
Alesha Dixon Self - Judge Self - Judge See fewer	Catwoman (2004)
Maddox Dixon Self - Contestant Self - Contestant See fewer	Britain's Got Talent (2007)
Declan Donnelly Self - Presenter Self - Presenter See fewer	Love Actually (2003)
Lost Voice Guy Self - Contestant Self - Contestant See fewer	The Stagg Do (2014)
Amanda Holden Self - Judge Self - Judge See fewer	Wild at Heart (2006)
Elli & Jeki Themselves - Contestants (as Ellie & Jeki) Themselves - Contestants (as Ellie & Jeki) See fewer	Britain's Got Talent (2007)
Luke Johnson Dancer Dancer See fewer	Children in Need (2015)
Matt Johnson Self - Contestant Self - Contestant See fewer	Who Was Phone? (2020)
Lifford Self - Contestant (as Lifford Shillingford) Self - Contestant (as Lifford Shillingford) See fewer	Hope Collective: Give and Let Live (2005)
Shameer Rayes Self - Contestant Self - Contestant See fewer	Britain's Got Talent (2007)
Shaquel Reyes Self Self See fewer	Northern Lights (2016)
Cali Swing Themselves - Contestants Themselves - Contestants See fewer	Britain's Got Talent (2007)
David Walliams Self - Judge Self - Judge See fewer	Little Britain (2003)
Richard Jones Self - Special Guest (uncredited) Self - Special Guest (uncredited) See fewer	Britain's Got Talent: The Champions (2019)