Is Ashton Kutcher replacing Charlie Sheen on Two and a Half Men? Yes, according to Deadline.com, which has supposedly confirmed that the former That 70’s Show star is joining the cast. CBS, the network which airs Two and a Half Men, has been working desperately to find a big star to replace Sheen (who was very publicly fired from the show a few months ago) in time for CBS upfronts, when the network will be unveiling its Fall line-up to advertisers.  CBS nor Warner Bros., who produces the show, have released any comments.