Katherine Marie Heigl, born on November 24, 1978, is an American actress. She is best known for her role as Dr. Izzie Stevens on Greys Anatomy and her starring role in the movies Knocked Up, Zyzzyx Road, 27 Dresses, The Ugly Truth, Killers and Life As We Know It. Heigl started her career as a child model with Wilhelmina Models before she turned her attention to acting. She made her debut in the coming-of-age film, That Night. Heigl co-starred as Isabel Evans in the television series Roswell and movies including My Father the Hero before landing her break out role in Greys Anatomy. Over the years, Heigl has established herself as a cover model appearing on numerous publications including Maxim, Vanity Fair and Cosmopolitan. Heigl married Josh Kelley in Park City, Utah, on December 23, 2007. Heigl appeared as Christina Sebastian in Steven Soderberghs Depression-era drama King of the Hill before being cast in her first leading role in the 1994 comedy My Father the Hero. In 1995, she starred in the Steven Seagal action thriller Under Siege 2: Dark Territory. Despite an increased focus on acting, she still modelled extensively, appearing regularly in magazines such as Seventeen. She took the lead role in Disneys made-for-television film Wish Upon a Star in 1996.