SETH ROGEN
AGE 25

BROKE OUT IN... Last summer's blockbuster yuk-fest Knocked Up, playing a loveable schlub who, you know, knocks up Katherine Heigl.

WHY HIM His everyman in hits like The 40-Year-Old Virgin and Knocked Up makes the masses howl; plus, he's got comedy king Judd Apatow behind him, which ain't a bad thing.

WHAT'S NEXT A voice in March 14's Horton Hears a Who, then the lead in Apatow's next comedy, Pineapple Express (Aug. 8), which finds him starring as a pot-head with James Franco. And he's currently shooting Kevin Smith's Zach and Miri Make a Porno.