Actors Who Went Through Extreme Transformations For Roles

Charlize Theron, Monster

Charlize Theron proved to audiences everywhere that she was not just a pretty face when she starred in 2003’s Monster. Playing real-life serial killer Aileen Wuornos, Theron gained 30 pounds from a ‘diet’ of donuts and chips.

When preparing herself for the role, the South African star never said it was about ‘gaining weight’ per se, but instead, she wanted to ‘let herself go’. Theron was determined to reduce the quality of her lifestyle in order to play the killer. She went on to win the Academy Award for her performance.