image credit: Magnus D ccMost of us don't yo-yo crazily back and forth from fat to skinny and from ripped to emaciated. But some people have made such behavior a way of life. Check out these 15 actors, who made dramatic - and in some cases shocking and quite unbelievable - weight changes to nail the part. We can only imagine the damage they're doing to themselves for the sake of our entertainment. And money, of course.
