Milo

This week is off to a super (hero) start! I've been in lust with dreamy Milo Ventimiglia since back in the day (Gilmore Girls). He's still dreamy, and I don't miss the leather jacket one bit. The less, the better!

"Right after I got back from shooting Rocky [in December 2005], I looked in the mirror and said, 'OK, I'm not a teenager anymore.' I still looked young but I didn't have a baby face. It was kind of a critical point, careerwise, where I needed to start going for the roles that were older. So I tried to get my physique to match and become more of a man," he tells Mens Fitness.

At the time, the 5'9" actor barely tipped the scales at 137 pounds. So he headed for the gym and began performing a self-designed lifting routine four times a week. For cardio work, he ran and jumped rope four to five times a week. He also quit smoking and focused on improving his nutritional habits. Even as a lifelong vegetarian (no meat, no fish, no eggs), he discovered that eating healthy had to be- come a conscious decision. 'You can be a vegetarian and still eat pizza every day," he says. "For the first time, I started to really pay attention to what I was putting into my body."

With his current Heroes sched, "It's either wake up early in the morning or go late after work. I also bring dumbbells to my trailer and see if I can't maintain there." And when he's tempted to blow off a session now and then, he calls to mind the example of a previous mentor. "When we were on Rocky, I saw the discipline that [Stallone] had. Physically, he put himself through hell to get into shape. Even when we were shooting the boxing scenes, he was constantly drinking from his water bottle because it contained all these vitamins and supplements."

Milo is 31 today.