 Many fictional characters and parodies of real-life people have sprung up during the show's history, some voiced by Bob Kevoian, Tom Griswold, Chick McGee, on-air producer Dean Metcalf, Steve Salge, and Ron Sexton.The show also takes calls from actual live listeners, plus miscellaneous "crazy listener" caricatures.On November 3, 2008, WGN America began airing an hour-long TV show taken from the day's radio broadcast at Midnight ET Monday through Friday (as of November 2009, it was moved to 2 a.m.