“I'm terrible with my workout regime and following it strictly. I'm terrible with a healthy diet and following it strictly. I'm terrible on the weekends about getting up at reasonable hours and all of those things. But, when it comes to my work and the discipline it takes to get to work on time - I hate unprofessionalism.”

American actress and model

Katherine Heigl is an American actress and model. She is best known for playing Dr. Izzie Stevens on the ABC medical drama Grey's Anatomy from 2005 to 2010, a role that brought her wide recognition and an Emmy Award. Her work on the series made her a familiar face to television audiences, and she is especially associated with that performance. As an actress and model, she has been in the public eye across both film and television, but this role remains the one most often tied to her name.