At one point I had to shove as much food in my body as possible to pack on calories. My trainer wanted me to do six meals a day and not go two hours without eating. If I would cheat on eating one day, I could tell - I'd drop a few pounds.

Does my being half-naked bother you?

I was in the gym five days a week, two hours a day. At one point, I was going seven days straight. I had put on a lot of weight, and then I started losing it drastically, so I was worried. It turned out I was overworking myself. My trainer told me that I couldn't break a sweat, because I was burning more calories than I was putting on.

If I love the character and if I love the story, and the character requires me to be shirtless, or if it requires me to lose 30 pounds, I'm ready to do it.

The actual getting into the gym and working out process was easier, but the eating was harder. I had to eat every two hours. At one point, my trainer said, 'Put anything in your mouth. Go to McDonald's, get the biggest shake possible. I just need to get calories in you.' Because my body fat at the time was only, like, seven and a half percent.

Honesty and loyalty are key. If two people can be honest with each other about everything, that's probably the biggest key to success.

Probably the people around me and the people I care about. They are my motivation. That's probably what drives me to succeed. Family and friends.