Olga Fonda is a Russian-born American model and actress best known for her role as Nadia Petrova in the horror drama television series The Vampire Diaries.
Fonda, born Olga Tchakova, came to America from Ukhta, Russia in 1996 when she was 14 years old.
She has appeared in minor roles on television series such as Nip/Tuck, Ugly Betty, Entourage, How I Met Your Mother, Melrose Place and Svetlana. She also appeared in the film Love Hurts, in 2009.
She can also be seen playing uncredited roles in Little Fockers (2010) and Crazy, Stupid, Love (2011), with Emma Stone, Ryan Gosling, Kevin Bacon, Julianne Moore, Marisa Tomei, and Steve Carell.
She also appeared in Real Steel (2011) as a Russian Robot owner.