Played Grace Florrick on the CBS series The Good Wife, for which she and the cast received a nomination for a Screen Actors Guild Award for Outstanding Performance by an Ensemble.
She made her acting debut at age five in the 1999 TV movie Dr. Quinn Medicine Woman: The Movie.
She has three siblings, including older sister and actress Alexa Vega. She is married to Blair Vega Norfolk; they welcomed a daughter in January 2021.
She co-starred in the 2006 family comedy Chestnut: Hero of Central Park with Abigail Breslin.