Most of the time being a Hollywood actor is all about the glitz and the glamour, but occasionally actors have to go that extra mile to transform themselves for a role. Take a look at some of the most dramatic actor transformations ever seen on film.
7 / 54
Mark Avery/Reuters
Fans know Matthew Fox mostly for his roles on "Lost" and "Party of Five," but for his newest role, he decided a change was in order.