Katherine Heigl refused to even try acting.
Katherine Marie Heigl ( [ ˈhaɪɡəl ] born November 24 , 1978 ) is an American actress , film producer and former fashion model . Heigl played Izzie Stevens on the ABC 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 .