6'2" (1.87m) Grant Gustin talks about his entrance on the show "Glee" and the angry reaction of fans to his mean character.  He even got death threats!

On November 8, 2010, he debuted on the television series Glee as Sebastian Smythe, an openly gay member of the Dalton Academy Warblers. Gustin won the recurring role of Sebastian, a promiscuous and scheming character, after "an exhaustive, weeks-long casting search". He originally auditioned for a role as a tap dancer, but did not get the part. However, Ryan Murphy kept him in mind. He began filming the role early on Monday, September 26, 2010, after having finished his final West Side Story performance the Friday night before.

Gustin began filming A Mother's Nightmare, a telefilm for the Lifetime network, at the end of May 2012. The project also stars actresses Annabeth Gish and Jessica Lowndes, and is being shot in Canada.