Grant Gustin to Play New Villain on Glee
![](https://tv-fanatic-res.cloudinary.com/iu/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1501812088/user/tv-fanatic-staff)
SPOILER ALERT: A development will conclude tonight's Glee episode that may drive a wedge between Kurt and Blaine.
MEGA SPOILER ALERT: Grant Gustin has been cast in a role that will definitely drive a wedge between Kurt and Blaine.
Michael Ausiello reports that Gustin will portray Sebastian, a member of the Warblers who show sources describe as the "male version of Santana" and make very clear: "He's our villain this season."
Gustin will debut on episode five and go right after Blaine. He's best known for a recent role in the national tour of West Side Story.