video i posted the 9th of january, 2016
Sebastian Smythe (Grant Gustin) is a student at Dalton Academy who transfers into the school in the show's third season. He is introduced as a new Dalton Academy Warbler in the fifth episode, "The First Time". When Blaine Anderson comes to Dalton to invite his Warbler friends to see a musical he's starring in at McKinley, Sebastian is attracted to him and propositions him. However, Blaine is happy with his current boyfriend, Kurt Hummel, and turns him down.[14] Sebastian suggests that he and Kurt join him at a local gay bar, though his further efforts to come between Blaine and Kurt are unsuccessful and Kurt later warns Sebastian away. Sebastian becomes captain of the Warblers, and in "Michael", he spikes the New Directions plan to do Michael Jackson songs at Regionals by adding Jackson's music to the Warblers setlist. When the McKinley glee club challenges the Warblers for the right to use Jackson, Sebastian throws a slushie spiked with rock salt intended for Kurt that injures Blaine - damaging his cornea and requiring surgery to repair. Santana gets him to privately admit his perfidy, but unknown to Sebastian his admission was taped and the other Warblers are made aware of his actions.[215] Undeterred, Sebastian tries to blackmail Rachel into not competing at Regionals by threatening to post faked nude pictures of Finn on the internet, but destroys the pictures after Dave Karofsky attempts suicide. Sebastian had cruelly rebuffed Karofsky at a gay bar and blames himself. The Warblers lose to New Directions at Regionals.[32] Sebastian returns in the fourth season although he loses the position of Warbler captain to Hunter Clarington. He is a part of the effort to persuade Blaine to rejoin the Warblers.[216] His last appearance on the series was in the fifth-season premiere "Love, Love, Love", when Blaine asks the Warblers to help him propose to Kurt. It seems that he is the Warblers' captain again when he is the one to announce that they agree to do so.
When Gustin made his first appearance, it was reported he was playing a new "major" recurring character,[217] a "gay Dalton Academy Warbler who sets his sights on Blaine".[218] Gustin won the role after "an exhaustive, weeks-long casting search", and the character is referred to as "promiscuous" and "scheming".[218] Gustin's first day on the Glee set was September 26, 2011.[219] He had been playing the role of Baby John in the touring company of Broadway revival of West Side Story since it opened on September 30, 2010, and left the show after performing on September 23, 2011, to return for his first day with Glee.[220][221]