She had a lead role as an actress Sierra Young in the comedy film "Heber Holiday" (2007) and co-starred in the comedy-drama film "Green Flash" (2008) alongside David Charvet and Kristin Cavallari. DeVitto appeared in the horror comedy film "Killer Movie" (2008) with then-boyfriend Paul Wesley, Kaley Cuoco and Leighton Meester. From 2008 to 2009, DeVitto had a recurring role in the fifth and sixth seasons of The CW drama series "One Tree Hill", where she played nanny Carrie. In 2013, DeVitto told "Entertainment Tonight" that her role as Carrie garnered strong reactions from the show's viewers and she often gets approached by fans about "One Tree Hill".