Christopher Ashton Kutcher (pronounce /ˈkʊtʃɚ/, rhyming with butcher; born February 7, 1978) is an American actor best known for playing Michael Kelso in the television series That '70s Show. He was the creator, executive producer, and host of the MTV celebrity prank show Punk'd. He is known for his roles in films such as Dude, Where's My Car?, Just Married, The Butterfly Effect,The Guardian and What Happens in Vegas.