Who's Coming Between Glee's Kurt and Blaine?

Grant Gustin Just whenever we thought Kurt (Chris Colfer) and Blaine (Darren Criss) would become happy for some time... Grant Gustin has became a member of the cast of Glee as Sebastian, a Dalton Warbler and potential love interest for Blaine, TVLine.com reviews. Simply because he's a Warbler, does not lead him to a pleasant guy. Actually, he's referred to because the male version of Santana (Naya Rivera). Glee: The Ten best and 10 worst performances Gustin, whose theater credits include West Side Story (very fitting!), will first come in Episode 5 from the third season, which airs Tuesdays at 8/7c on Fox. What is your opinion? Tell us within the comments below.