Question: Which Bulgarian-Canadian actress appeared in the drama series "The Vampire Diaries" and in the 2007 Canadian drama film "The Poet?" 

Context paragraphs:
Fugitive Pieces (film): Fugitive Pieces is a 2007 Canadian drama film directed by Jeremy Podeswa, who also adapted the film from the award-winning novel of the same name written by Anne Michaels.  The film tells the story of Jakob Beer, who is orphaned in Poland during World War II and is saved by a Greek archeologist.  The film premièred 6 September 2007 as the opening film of that year's Toronto International Film Festival (TIFF).

The Poet (film): The Poet is a 2007 Canadian drama film starring Nina Dobrev, Colm Feore, Roy Scheider, Kim Coates and Daryl Hannah.  It was written by Jack Crystal and directed by Damian Lee, with an estimated budget of CAD $11 million.

The Vampire Diaries (season 6): "The Vampire Diaries", a one-hour American supernatural drama, was renewed for a sixth season by The CW on February 13, 2014, and it premiered on October 2, 2014.  A majority of the episode titles for this season are named after songs released in 1994 & 1903.  "The Vampire Diaries" was renewed for a seventh season on January 11, 2015, by The CW.

Emotional Arithmetic: Emotional Arithmetic is a 2007 Canadian drama film directed by Paolo Barzman, based on the novel by Matt Cohen, about the emotional consequences for three Holocaust survivors when they are reunited decades later.  The film stars Gabriel Byrne, Roy Dupuis, Christopher Plummer, Susan Sarandon, and Max von Sydow.  It opened at the Toronto International Film Festival, in Toronto, Ontario, Canada, on September 15, 2007, and was released, in Canada, on April 18, 2008.

Nina Dobrev: Nina Dobrev ( ; born Nikolina Konstantinova Dobreva; Bulgarian: Николина Константинова Добрева ; January 9, 1989) is a Bulgarian-Canadian actress.  She is known for portraying the role of Mia Jones in the drama series "" and then Elena Gilbert on The CW's supernatural drama series "The Vampire Diaries".

L. J. Smith (author): Lisa Jane Smith, known professionally as L. J. Smith, is an American author of young adult fiction best known for her best-selling series "The Vampire Diaries", which has been turned into a successful television show.  Her books, particularly "The Vampire Diaries" and "Night World", have been in the "New York Times" Best Seller list and have been nominated for five awards.

List of The Originals characters: "The Originals" is an American fantasy-drama television series picked up by The CW for their fall 2013 schedule, after a backdoor pilot for the series aired as an episode of The CW television series "The Vampire Diaries" in April 2013.  It is a spin-off of "The Vampire Diaries", sharing a universe with its predecessor.  It centers on three Mikaelson siblings, Klaus (Joseph Morgan), Elijah (Daniel Gillies), and Rebekah (Claire Holt), collectively known as "original vampires", or simply the "originals".  "The Originals" is set in the city of New Orleans.  It was created by Julie Plec.

Elena Gilbert: Elena Gilbert is a fictional character and protagonist in the novel series "The Vampire Diaries".  In "The Vampire Diaries", set in the fictional town of Mystic Falls, she is portrayed by Nina Dobrev.  In the books, Elena was blonde, popular, selfish and a "mean girl".  However the show's producers, Julie Plec and Kevin Williamson, felt that it wasn't the direction they wanted to go with their heroine in "The Vampire Diaries" television series.  Instead, she became a nicer, relatable and more of "the girl next door" type, until her life gets flipped upside down when she meets the Salvatores.  In April 2015, Nina Dobrev announced that she would be departing the series after the sixth season finale.

The Vampire Diaries (season 7): "The Vampire Diaries", a one-hour American supernatural drama, was renewed for a seventh season by The CW on January 11, 2015, and premiered on October 8, 2015.  This is the first season to not feature Nina Dobrev as Elena Gilbert following her departure from the series after the season six finale.  On March 11, 2016, The CW renewed "The Vampire Diaries" for an eighth and final season.

Bianca Lawson: Bianca Jasmine Lawson (born March 20, 1979) is an American film and television actress.  She is perhaps best known for her regular roles in the television series "", "Goode Behavior", "Pretty Little Liars", and "Rogue".  She has also had recurring roles in the series "Sister, Sister", "Buffy the Vampire Slayer", "The Steve Harvey Show", "Dawson's Creek", "The Secret Life of the American Teenager", "The Vampire Diaries", "Teen Wolf", and "Witches of East End".  In 2016, Lawson began starring in the Oprah Winfrey Network drama series, "Queen Sugar".

Supporting paragraphs: The Poet (film) Nina Dobrev
Answer: Nina Dobrev