Robert John Odenkirk was born in Berwyn, Illinois, to Barbara (Baier) and Walter Odenkirk, who worked in printing. His ancestry includes German and Irish. He grew up in Naperville, IL, the second of seven children. He worked as a DJ for WIDB, his college radio station at Southern Illinois University Carbondale. Three credits shy of graduation, he moved to Chicago. He began work there in local improv workshops. He also did open-mic stand-up comedy for several years. In Chicago, he became friends with Robert Smigel,