HomeTVFoxDianna Agron and Heather Morris to Return For Glee’s 100th Episode Melodie December 6, 2013 1 Comment Two of Glee's original stars are set to return for the Fox dramedy's 100th episode. Dianna Agron and Heather Morris will reprise their roles as Brittany S. Pierce and Quinn Fabray, respectively. Episode 100 of Glee is scheduled to air Tuesday, March 18, 2014. Photo credit: Fox One Response LauraWrightCrazy December 6, 2013 WOOOhOOoOOOoOo!!!!!!! Log in to Reply Leave a Reply Cancel Reply You must be logged in to post a comment.