Age: 23 

Admittedly, Nicholas Hoult isn't as famous as, say, Daniel Radcliffe. But with that said, the Brit is making a strong case for being one of the best actors in their 20s right now, as well as one of the better dressed dudes in the industry. He has developed a uniform of leather jackets, button-downs under swetaers, and sharp suits. Thankfully, he has also gotten rid of his horrid Bieber-esque haircut. Maybe he learned a thing or two from Tom Ford, who casted him in his film, A Single Man, and hired him for his Spring 2010 eyewear campaign.