From Wikipedia, the free encyclopedia. Nina Dobrev (born Nina Konstantinova Dobreva; in Bulgarian ; January 9, 1989)  is a Bulgarian-Canadian actress. She played the role of Mia Jones, the single teenage mother, on Degrassi: The Next Generation, from the show's sixth to ninth season. She currently stars as Elena Gilbert and Katherine Pierce on The CW television teen drama The Vampire Diaries.

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