Pratt was a student at the Hampstead Dance Academy, and after graduation began her career at the Broadway Dance Center. She was Miss New Hampshire Teen USA 1994 and competed in the Miss Teen USA 1994 pageant. She has guest starred on such series as CSI: Crime Scene Investigation, ER, House, Bones, Veronica Mars, Law and Order: Special Victims Unit, Nip/Tuck, 7th Heaven, That '70s Show, and Sabrina the Teenage Witch. In 2006 she appeared in four episodes of the ABC show Brothers & Sisters, as an intern to Calista Flockhart and Josh Hopkins's characters. In July 2008, Pratt was cast as Kristy in the 2009 film I Hope They Serve Beer In Hell. In 2010 she appeared as Cat Grant in the 10th season of Smallville. Not as active since 2012, Pratt appeared in the 2014 webseries of four, two-minute long, webisodes The Originals: The Awakening.
Pratt, who was born in Concord, New Hampshire, graduated from Pinkerton Academy in Derry and is an alumna of Barbizon Modeling and Acting School in Boston. She married John Barneson in October 2011 at Hampstead Congregational Church in Hampstead, New Hampshire.
