She became known as the pretty high school cheerleader Quinn Fabray on Glee for which she won a Breakthrough Of The Year Award in 2010.
Having studied dance since age 3, she began teaching dance classes as a teenager, and discovered her dad had MS when she was 15.
She won a Screen Actors Guild Award in 2010 for Outstanding Performance by an Ensemble in a Comedy Series, and was voted number three on Shalom Life's list of the 50 most talented, intelligent, funny, and gorgeous Jewish women in the world.
Her parents are Mary and Ronald S. Agron. She dated Alex Pettyfer, her co-star on I Am Number Four, for a year.