Chris Hemsworth in Thor
Speaking of Captain America and the Avenger, we need to mention his ally, Thor. Chris Hemsworth, who plays Thor, bulked up as well for his role. And what a bulk-up that was: You can already see how tight he was, whether he was wearing his Asgardian outfit and his Earth outfit. After all, Thor is a powerful godlike being with a hammer so you can’t just be scrawny for this. And how did Chris get bulked up? He ate a lot of food and did weights, in contrast to what Butler did.