Katherine Heigl. Katherine Marie Heigl is an American actress and producer. She is possibly best known for her role as Dr. Izzie Stevens on ABC's Grey's Anatomy from 2005 to 2010, for which she won a Primetime Emmy. [Wikipedia]
Grey's Anatomy 30 Day Challenge. Day 6: Least Favorite Female Character? Izzy Stevens. I like her, but my least favorite.