The CW Fantasy TV series "The Vampire Diaries" season 4 premiered on October 11, 2012 (Thursday night) at 8.7c. The Vampire Diaries fourth season finale episode 23 scheduled to be air on 16th May 2013. The Vampire Diaries S06E23 titled "Graduation" directed by Chris Grismer and written by Caroline Dries & Julie Plec. The episode synopsis: "n Graduation Day, Mystic Falls is overrun with ghosts intent on settling old scores and fulfilling their supernatural destinies. Damon's (Ian Somerhalder) life is in danger after a ghostly encounter, while Matt (Zach Roerig) and Rebekah (Claire Holt) join forces to battle a ghost determined to find the cure[..]"