GLEE's Grant Gustin to Become Season Four Regular

As first reported on E!Online, actor Grant Gustin, who made his debut as the character 'Sebastian' in this season's GLEE, will become a series regular when the show returns for Season Four. Gustin played a member of the Glee club's rival singing group, The Warbler's and became a very controversial character when he came between the blossoming romance of Blaine and Kurt. According to the report, Sebastian will become less of a threat to the couple's relationship next season.

Gustin has appeared in two episodes of Season 3 of the hit Fox series and will make a third appearance on the upcoming Michael Jackson tribute episode. 

It was recently announced that plans for a 'Glee' spin off starring the show's graduating seniors will no longer be happening. Stars Lea Michele, Chris Colfer and Cory Monteith will now be returning to the series. 

Photo credit: Beth Dubber/FOX