Season Four begins with the knowledge that everything is in transition. Elena faces her worst nightmare when she awakens after the accident and finds she must now endure the terrifying transition to become a vampire – or face certain death. Stefan and Damon are torn even further apart over how to help Elena adjust to a life she never wanted, and everyone has to cope with the chaos Alaric created when he outed the vampires and their supporters to the Mystic Falls Council and local church leaders. Despite everything that has happened to them, as Elena and her friends enter into the final stretch of high school before graduation sends them off on different paths, they feel the bond to their home town of Mystic Falls take on a deeper meaning when a new mysterious villain is introduced who seems intent on destroying it.
TV Guide reports that Blake Hood (90210, The Young and the Restless) and Alyssa Diaz (The Nine Lives of Chloe King, As the World Turns) have joined the upcoming season of The Vampire Diaries. They will play Dean and Kimberly, respectively, hybrids are under the control of Klaus (Joseph Morgan) with Hood appearing in Episode 5 and Diaz in Episode 6.