Stefan Salvatore, A vampire that was created by Katherine Pierce in 1864. He survives mainly on animal blood and chooses and less murderous way of life than most vampires. He is the on again off again romantic interest of Elena Gilbert and the object of Katherine Pierce’s affection. When Klaus comes to town, he makes a deal with Stefan in order to save Damon’s life. He offers to save Damon if Stefan will drink copious amounts of human blood and join Klaus as his alter ego, The Ripper. As a result of this, Stefan becomes murderous and leaves Mystic Falls with Klaus and essentially loses all of his humanity. Upon returning to Mystic Falls, he attempts to regain his humanity and win back Elena’s love.

Paul Wesley was raised in the Marlboro, New Jersey. His parents are Polish and many of his relatives live in Poland. Until the age of 16, he spent 4 months of every year in Poland. He has 3 sisters, two younger and one older. His eldest sister is an attorney.
Paul attended the Christian Brothers Academy as well as Marlboro High School. He was expelled from the first school for getting into fights. It was his troubled youth that led him towards acting. He was forced by a teacher to do a school play, when he was in the third grade, but found acting a safe haven. Whilst in his junior year at Marlboro, he landed the role of Max in "Guiding Light" (1952). Due to his acting schedule, he transferred schools to Lakewood Prep school. He graduated in 2000. He went on to Rutgers University but, because he was being offered roles, he decided to quit after one semester.
His breakthrough role came in "The Vampire Diaries" (2009). He auditioned for both the roles of Damon, the bad vampire brother, and Stefan, the good vampire brother. But they decided he would work better as Stefan.
He currently resides in Los Angeles and Atlanta, where he continues filming on 'The Vampire Diaries'.

Thank you to IMDb for the mini bio!