Harrison studied acting at the Circle in the Square Theatre School, New York City.

[1] In 2000, she played Crane's assistant in The Guilty, the same year she starred in an episode of Cold Squad.

[1] In 2008, she played a main role as Julie Reichert, in the Lifetime Movie Network television miniseries The Capture of the Green River Killer.

[2] In 2009, she secured a main role as Kate, the oldest daughter of the Henry family in the CBC Television cowboy drama series Wild Roses.

[3] She starred alongside Steven Weber, in Hallmark Movies & Mysteries Original film 'Tom Dick & Harriett as Harriett Fellows,[1] and again the same year in The Mystery Cruise with co-star Gail O'Grady.