Ashton Kutcher got his big break as Michael Kelso on the Fox sitcom That `70s Show alongside other up-and-comers Topher Grace, Laura Prepon, Mila Kunis, Danny Masterson, and Wilmer Valderrama. This model-turned-actor also made a huge splash with his MTV show Punk'd -- single-handedly making him one of the most faux feared men in Hollywood. Ashton's biggest headline maker was his 2005 marriage to fellow actress Demi Moore. One additional little known fact about Ashton is that he has a fraternal twin brother Michael.