Stage veteran Grant Gustin will be reprising his role as Sebastian for a multi-episode arc on the FOX hit GLEE, according to TVLine.com.
Gustin – whose credits include the national tour of West Side Story – plays the openly gay lead singer of the Dalton Academy Warblers and was introduced last season as a potential romantic rival to Kurt (Chris Colfer) for the affections of Blaine (Darren Criss).