Because of a passing resemblance to actress Laura Linney, Hagan's childhood photos were used as a stand-in for Linney's childhood photos (lost in a fire) in a prop photo album in the movie The Life of David Gale (2003).
Earned a BFA in Art Direction from Pratt Institute.
Graduated valedictorian from St. Vincent's Academy, an all-girls Catholic high school in Savannah, GA. Sister alumna and Oscar nominee Diana Scarwid graduated from St. Vincent's four years earlier.