Oh, Grant Gustin (Sebastian): You have no idea how much we miss you when your not on Glee! In this interview with ClevverTV, the cute Warbler is as charming and humble as ever. Grant reflects on the whirlwind ride that landed him his gig on the Fox hit, teases what might be coming on Season 4, and even shares which of his Glee co-stars reminds him the most of his real-life brother. Curious to find out the answer? Click ahead to 4:43 to find out.