Herschel Shmoikel Pinchas Yerucham Krustofsky, better known by his stage name Krusty the Clown, is a recurring character on the animated television series The Simpsons. He is voiced by Dan Castellaneta. He is the long-time clown host of Bart and Lisa's favorite TV show, a combination of kiddie variety television hijinks and cartoons including The Itchy & Scratchy Show. Krusty is often portrayed as a cynical, burnt-out, addiction-riddled smoker who is made miserable by show business but continues on anyway. He has become one of the most frequently occurring characters outside the main Simpson family and has been the focus of many episodes, some of which also feature Sideshow Bob.

The Simpsons is an American animated sitcom created by Matt Groening for the Fox Broadcasting Company. Developed by Groening, James L. Brooks, and Sam Simon, the series is a satirical depiction of American life, epitomized by the Simpson family, which consists of Homer, Marge, Bart, Lisa, and Maggie. Set in the fictional town of Springfield, it caricatures society, Western culture, television, and the human condition.