Mark Wahlberg and More Stars Who Underwent Drastic Physical Transformations For a Role

Mark Wahlberg Says He's Gained 20 Pounds, Posts Shirtless Photos 3 Weeks Apart

Mark Wahlberg Reveals New Look After Gaining 20 Pounds in Just 3 Weeks

Mark Wahlberg unveils dramatic body transformation in just 'three weeks' for role in Father Stu