Nina Dobrev 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.
Nina Dobrev was born in Sofia, Bulgaria, and moved to Canada at the age of two, where she was raised in Toronto, Ontario. She speaks fluent French, English, and Bulgarian. Her mother is an artist, and her father is a computer scientist. She has one older brother. From a very young age, she showed great enthusiasm and talent for the arts: dance, gymnastics, theatre, music, visual arts and acting.
Dobrev attended J. B. Tyrrell Sr. Public School and Wexford Collegiate School for the Arts in Scarborough, Ontario. She attended Ryerson University in Toronto, majoring in sociology. She left in 2008 to pursue her acting career.
Her The Vampire Diaries co-star Ian Somerhalder accompanied Dobrev to the 2011 Much Music Awards in June, confirming after months of speculation that the two were in a romantic relationship.Modeling jobs led to commercials, which then turned into film auditions. Shortly thereafter, she booked roles in feature films, including Fugitive Pieces, Away from Her, Never Cry Werewolf, and the television series Degrassi: The Next Generation. She starred in a number of Lifetime original movies. She also was in an MTV movie called The American Mall on CTV. She is currently starring in The CW's drama The Vampire Diaries, playing the dual role of Katherine Pierce, a vampire that the same brothers each loved while they were still human during the American Civil War, and Katherine's doppelgänger Elena Gilbert, a human who is caught between the same two vampire brothers, Damon and Stefan Salvatore.
She also had a minor role in the erotic thriller Chloe, theatrically released by Sony Pictures Classics on March 26, 2010. The film had enjoyed commercial success and became director Atom Egoyan's biggest moneymaker ever.
In April 2011, she was cast as Candace in the film adaptation of The Perks of Being a Wallflower, alongside Logan Lerman, Emma Watson and Paul Rudd. Shooting began in May of that year in Pittsburgh, Pennsylvania and she completed her scenes on June 27.

Filmography:
Repo! The Genetic Opera
Away from Her
Playing House
Degrassi: The Next Generation
How She Move
The Poet
Fugitive Pieces
Too Young to Marry
Mookie's Law
The American Mall
Never Cry Werewolf
The Border
Chloe
Degrassi Goes Hollywood
Eleventh Hour
Merry Madagascar
The Vampire Diaries