Just when we thought Kurt (Chris Colfer) and Blaine (Darren Criss) were going to get to be happy for awhile...
Grant Gustin has joined the cast of Glee as Sebastian, a Dalton Warbler and potential love interest for Blaine, TVLine.com reports. Just because he's a Warbler, doesn't make him a nice guy. In fact, he's described as the male version of Santana (Naya Rivera).
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Gustin, whose theater credits include West Side Story (very fitting!), will first appear in Episode 5 of the third season, which airs Tuesdays at 8/7c on Fox.
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