Katherine Marie Heigl (born November 24, 1978) is an American actress, film producer and former fashion model. She played Izzie Stevens on ABC's medical drama Grey's Anatomy from 2005 to 2010, a role for which she won the Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series in 2007. She has also starred in films, such as Under Siege 2: Dark Territory, The Nut Job, Knocked Up, 27 Dresses, The Ugly Truth, Killers, Life As We Know It and New Year's Eve. She played the main character in the television series State of Affairs from 2014 to 2015. Heigl started her career as a child model with Wilhelmina Models before turning her attention to acting. She made her debut in the coming-of-age film That Night in 1992. Heigl co-starred as Isabel Evans in the television series Roswell and films, such as My Father the Hero before landing her break-out role in Grey's Anatomy. She has established herself as a cover model appearing on numerous publications including Maxim, Vanity Fair and Cosmopolitan. Heigl is married to singer Josh Kelley, with whom she has two adopted daughters.