Age: 22
Best projects: About a Boy (2002), A Single Man (2009), X-Men: First Class (2011)

So what if you don’t know Nicholas Hoult by name yet? The power players in Hollywood certainly do—why else do you think Bryan Singer (director of The Usual Suspects and the first two X-Men movies) selected him to star in the hopeful 2013 blockbuster Jack the Giant Killer? The same reason why Matthew Vaughn cast Hoult to play Hank “Beast” McCoy in the superhero triumph X-Men: First Class.

The 22-year-old Englishman is that rare breed of young actor who exudes sophistication and maturity at all times, whether he’s in the aforementioned big-studio spectacles or smaller art-house fare like Tom Ford’s powerful 2009 drama A Single Man. If that’s enough to inspire jealousy, consider this: Hoult is also dating his X-Men: First Class co-star Jennifer Lawrence.