Charlize Theron
Charlize Theron is one of the most beautiful actresses in the world, but she also proved that she can transform herself for any role. She gained 30 pounds and wore prosthetics to play serial killer Aileen Wuornos in Monster, which earned her an Oscar for Best Actress. She also gained 50 pounds to play a depressed mother in Tully, where she had to eat junk food and drink sugary drinks. She said she hated the process of gaining weight, and it took her a long time to lose it.
