16. Jonah Hill
Jonah Hill is an actor that has played many comedy roles over the years. He has also played several serious roles, but his character is always going to be known as one that keeps people laughing and smiling.
Hill was overweight at the beginning of his career, but he has since dropped several pounds and gotten into amazing shape. He is exercising and also eating right, which is probably in part because his girlfriend is a nutritionist and helps him in his weight loss endeavors.