Damon Salvatore, Elena Gilbert, and last but not least Stefan Salvatore. The dark threesome are the 3 main characters on the hit CW tv show The Vampire Diaries. The Vampire Diaries are based upon the the books by L.J Smith. Elena: A feisty girl, who keeps a lot of secrets about her vampire boyfriend Stefan Salvatore. Stefan: A Italian vampire who is 162 years old (and a half!) who is battling the thirst for his human girlfriend Elena Gilbert. He is also the brother of Damon Salvatore. Damon: The bad-ass rule breaker of the group who secretly wants what he can't have. The one and only: Elena Gilbert. This is a truly riveting series and I give a strong recommendation to anyone who is reading.