Jeffrey Dean Morgan openly admitted that his weight loss on a recent television set was anything but healthy!
Scroll through to find out why — and see other stars who've undergone drastic transformations for film and TV roles.
Mark Wahlberg in The Gambler
The father-of-four dropped a staggering 60 pounds to portray gambler Jim Bennett in the fictional film The Gambler.
“I went from 197 to — the lightest I’d ever been in a movie was in Boogie Nights, I was 138 — so I wanted to beat that,” he said. “I beat it by a pound, so 137. I was losing weight while we were shooting the movie, too, so continuity kind of went out of the window.”