Mark Roberts. Writer: Two and a Half Men. Mark Roberts (born January 19, 1961) is an American screenwriter, producer, playwright, actor, and comedian, best known for creating the American sitcom Mike & Molly (2010). Mark has began as a stand-up in Chicago, and was soon spotted by a casting director who helped him land work in commercials. Sitcom work soon followed, including a series regular gig on the Téa Leoni series...