Herschel Shmoikel Pinchas Yerucham Krustofsky, better known by his stage name Krusty the Clown, is a recurring character in the animated television series The Simpsons. Voiced by Dan Castellaneta, he is the longtime clown host of Bart and Lisa's favorite variety show featuring child-friendly sketches and often highly violent cartoons, most notably The Itchy & Scratchy Show. Despite his cheery onscreen persona, Krusty is a cynical, burned-out, addiction-riddled smoker. He has been the focus of many episodes, including some about his relationship with former co-star Sideshow Bob, who later became a major antagonist.