Nina Dobrev as Elena Gilbert :

 In The CW's hit drama, "The Vampire Diaries," Nina Dobrev plays a double role, starring as Elena Gilbert, a beautiful young girl caught between two vampire brothers, and as Katherine Pierce, the ruthless vampire the brothers knew and loved in the nineteenth century.

Dobrev recently wrapped production on "The Killing Game," with Kellan Lutz and Samuel L. Jackson. The film centers on a man (Lutz) who is kidnapped and forced into the world of modern gladiators. Dobrev plays Lutz's wife. She will also be seen in Screen Gems' "The Roommate," with Leighton Meester and Minka Kelly.

Dobrev was last seen in Montecito Pictures' "Chloe," with Julianne Moore, Amanda Seyfried and Liam Neeson. Other past film credits include "Fugitive Pieces," with Ayelet Zurer and Rosamund Pike, "Away From Her," with Julie Christie, and "The Poet."

Television credits include lead roles on "DeGrassi: The Next Generation" and "MTV's The All American Mall," as well as a guest appearance on "Eleventh Hour." She has also appeared in the television movies "Never Cry Werewolf" and "Too Young to Marry."

Born in Bulgaria, Dobrev moved to Canada at the age of 2 and grew up in Toronto, Ontario. She currently lives in Los Angeles, California, and in Atlanta, Georgia, where "The Vampire Diaries" is filmed.