Julianna Guill is an American actress. She started her acting career in the mid-2000s. She made her debut in the TV series One Tree Hill. She later landed guest roles in such shows as CSI: Miami, CSI: Crime Scene Investigation, and How I Met Your Mother. She next starred in the made-for-television movie My Super Psycho Sweet 16. She also starred in the movies Friday the 13th and Road Trip: Beer Pong. In the 2010s, she had roles in the films Costa Rican Summer, Crazy, Stupid, Love, and Altitude. At the same time, she also starred as Christie Dewitt in the short-lived series Glory Daze. She later had recurring roles in the shows Underemployed and Girlfriends’ Guide to Divorce.