View gallery Image Credit: Getty Images Katherine Heigl has built a successful career starring in hit TV shows and beloved romantic comedies. While she's earned praise for series like Firefly Lane and Suits, as well as films such as 27 Dresses and Knocked Up, her breakout role came as Dr. Izzie Stevens on Grey's Anatomy from 2005 to 2010. Off-screen, Katherine is a loving wife and mother. She's been married to singer-songwriter Josh Kelley since 2007, and the pair have three beautiful children. She's shown that she clearly adores her children.