12 Most Radical Body Transformations For Comic Book Movies

7. Chris Hemsworth - Thor: The Dark World

Weight Gain: 30 pounds

Unless you're Loki, if you come from Asgard you have to look like an actual God. Mostly because that's exactly what you are. And there are some rigid expectations of what Norse demi-deities look like, which made it necessary for star Chris Hemsworth to hit the protein and the gym in a big way when he was cast for Thor.

Hemsworth actually had to bulk to Thor size twice in quick succession after he was cast to play 185 pound James Hunt in Rush between The Avengers and Thor: The Dark World. So he deserves double the praise, considering that meant losing and rebuilding a massive 30 pounds of muscle.