Name	Known for
Ryan Seacrest Self - Host Self - Host See fewer	American Idol (2002)
Simon Cowell Self - Judge Self - Judge See fewer	Scary Movie 3 (2003)
Ellen DeGeneres Self - Judge Self - Judge See fewer	The Ellen DeGeneres Show (2003)
Kara DioGuardi Self - Judge Self - Judge See fewer	Get Smart (2008)
Randy Jackson Self - Judge Self - Judge See fewer	The Truth About Cats & Dogs (1996)
Crystal Bowersox Self Self See fewer	American Idol (2002)
Lee DeWyze Self Self See fewer	Lee DeWyze: Fight (2014)
Andrew Garcia Self Self See fewer	JustKiddingFilms (2007)
Justin Gaston Self Self See fewer	Days of Our Lives (1965)
Casey James Self Self See fewer	American Idol (2002)
Aaron Kelly Self Self See fewer	American Idol (2002)
Adam Lambert Self - Mentor Self - Mentor See fewer	2012 (I) (2009)
Jane Lynch Self Self See fewer	Wreck-It Ralph (2012)
Michael Lynche Self Self See fewer	American Idol (2002)
Siobhan Magnus Self - Contestant Self - Contestant See fewer	The Eve (I) (2015)
Cory Monteith Actor Actor See fewer	Glee (2009)
Matthew Morrison Actor Actor See fewer	Glee (2009)
Katie Stevens Self Self See fewer	Haunt (I) (2019)
Josh Sussman Self Self See fewer	Glee (2009)
Mark Thompson Announcer Announcer See fewer	The Day After Tomorrow (2004)
Tim Urban Self - Contestant Self - Contestant See fewer	Movie 43 (2013)
Brooke White Self Self See fewer	Change of Plans (2011)