Robert Downey Jr. – ‘Iron Man 2′

He Plays: Mega-millionaire inventor Tony Stark, aka Iron Man.

Where Else You’ve Seen Him: As a more than usually dashing Sherlock Holmes, and a desperate drug addict in Brat Pack classic ‘Less Than Zero.’

Why He’s Hot:  RDJ was a pretty boy back in the ’80s, but he’s grown into an incredibly handsome man. We love him even more now that he’s bulked up his bod to match that Holmesian brain. Anybody could be under that Iron Man suit, but it takes Downey Jr.’s superhero-like smarts to wear the maverick character of Tony Stark as well as he does. [SOURCE]