Studied acting at Armstrong Acting Studios in Toronto, Ontario, Canada.
She has competed internationally representing Canada in Aesthetic Group Gymnastics. In 2005, she joined both the Senior World Championships in Copenhagen, Denmark and the Junior World Championships in Plzen, Czech Republic.
She enjoys playing Rock Band and engages in water sports including swimming, windsurfing, wake boarding and scuba diving. Nina also loves to travel and often visits Europe. Among her other activities are playing volleyball, soccer, horseback riding, snowboarding and rock climbing.
She traveled to Kenya where she built a school with fellow Degrassi: The Next Generation (2001) co-stars through the non-profit organization, Free The Children. She also wore a top promoting the cause towards the end of her movie, The American Mall (2008).
She went into a general audition for Degrassi: The Next Generation (2001) and read for the role of Manny Santos but didn't get it. Later she was called back, read for the role of Mia Jones and got it.
She has been sharing an apartment in Atlanta with Kayla Ewell.
One of her hobbies is making jewelry. She plans on starting her own jewelry line in the future.
Is frequently compared, and is aware of bearing a resemblance, to Victoria Justice.
Some of her favorite films include Schindler's List (1993), The Notebook (2004), Juno (2007) and Knocked Up (2007).
Her favorite television series are Orange Is the New Black (2013), Homeland (2011), Grey's Anatomy (2005), Friday Night Lights (2006) and House of Cards (2013).
Is a huge fan of the HBO television series True Blood (2008).
Her favorite actresses are Meryl Streep and Rachel McAdams.
Was in a relationship with The Vampire Diaries (2009) co-star, Ian Somerhalder (2010-May 2013).
Lists child rights advocate Craig Kielburger and Meryl Streep among the people she admires.
Is a huge fan of Chicago (2002). She derived inspiration from the song "Cell Block Tango" for her performance of "Survivor" in The American Mall (2008).
Has played a teenage mother on Degrassi: The Next Generation (2001) and played both a teenage mother and daughter of teenagers on The Vampire Diaries (2009).
Ranked #44 in the 2011 FHM Australia list of "100 Sexiest Women in the World".
Second child and only daughter of Konstantin Dobrev and Michaela Dobreva (nee Radeva).
Has an older brother named Alexander Konstantinov Dobrev.
Speaks fluent English, French and Bulgarian.
Is a very skilled ballet and jazz dancer and gymnast.
Is six years younger than Olga Fonda, who played her daughter on The Vampire Diaries (2009).
Named after her maternal grandmother Nikolina Constantine.
She was born in Bulgaria and speaks Bulgarian. For this reason Katherine, who was German in the books, became Bulgarian in the series.
Attended Wexford Collegiate, an arts school in Toronto. In 2007 she began her post-secondary studies at Ryerson University in Toronto, where she was majoring in Sociology. She also trained at the Dean Armstrong Acting Studio in Toronto.
She's a huge fan of the "Harry Potter" series, by J.K. Rowling.
Her father is a computer specialist and her mother is an artist.
Ranked #53 on Maxim magazine's Hot 100 Women of 2014 list.
As of July 2015, in a relationship with actor Austin Stowell.
Has two pets--a dog and a cat named Miss Linx.
Would like to open a yoga studio one day.
Great athlete that enjoys competing in athletic competitions.
Is a huge fan of the Netflix series, House of Cards (2013).