Mary Phillips is, in 1992, the co-host of the I Say/You Say program on WCTR and the wife of Peyton Phillips, the show's other host. She is voiced by Jackie Hoffman. She is partially based on Mary Matalin, a conservative campaign specialist for George H.W. Bush, who married her counterpart from the Clinton campaign James Carville.
Mary is a staunch Conservative, so Conservative that she occasionally preaches Fascism. She's cheated on her husband with at least one person, the show's producer, whether it be alone with him or in a threesome with her husband. Mary often victimizes and verbally abuses her husband, a staunch Liberal, live on air because of his political views, which almost always differ from hers. At the end of one episode of I Say/You Say, she tells the listeners to support a Totalitarian state, implying that she is, indeed, Fascist.