Thursday, Apr. 01, 2010

Ashton Kutcher

Age: 32
Occupation: Actor, social media entrepreneur
Previous TIME 100 Appearances: 0

Who'd have thought that the amiable actor and mischief-maker behind Punk'd would turn into a social media pioneer? Kutcher, who did as much as anyone to popularize Twitter, now has his eye on becoming a next-generation social media mogul. Don't count him out.