In the sun-bleached, chaotic world of The Simpsons , where Homer’s stupidity is a superpower and a three-eyed fish can become a local celebrity, most villains are bumbling. Mr. Burns is a fossilized dinosaur of greed, Snake is a two-bit hood, and even the bullies are just sadistic children.

He is the razor blade hidden inside a velvet glove. With his towering, thatch-roofed hair (a direct nod to the Brothers Grimm ), his bleeding-heart tattoo, and the voice that rolls like a Shakespearean actor savouring revenge, Bob represents something terrifyingly absent from Springfield: High-stakes, articulate malice.

But Sideshow Bob—born Robert Onderdonk Terwilliger Jr.—is different.

Sideshow Bob is not a monster. He is a tragicomedy. He is the intellectual who cannot stand the idiocy of the world, forced to realize that the world’s idiocy will always, inevitably, step on his rake. He is the sound of one hand clapping, followed by a man screaming, "Die, Bart, Die!"—spelled out, of course, in German.