Michael Christopher Kelso (born 1959), usually referred to simply as Kelso by his friends, is one of the five male leads on Fox Network's That '70s Show, portrayed by Ashton Kutcher. Tall, lanky and long-haired, Kelso had been accepted as the local idiot until he moved to Chicago for the eighth season. His behavior is very much in line with a stereotypical oversexed lunkhead or a male-bimbo who gets through life on his good looks.