Sideshow Bob began as the faithful sidekick to Krusty the Clown on The Krusty the Clown Show , where he was frequently humiliated—slapped with pies, hit with a mallet, and upstaged. Eventually, he framed Krusty for armed robbery and took over the show, only to be exposed by Bart Simpson. Since then, Bob has nursed a murderous grudge against Bart (and occasionally the whole Simpson family).
Here’s a concise summary of from The Simpsons : sideshow bob from simpsons
Robert Onderdonk Terwilliger Jr. Voiced by: Kelsey Grammer First appearance: “The Telltale Head” (1990) Sideshow Bob began as the faithful sidekick to