American History X-cellent
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"American History X-cellent" is the seventeenth episode of the twenty-first season of the American animated television series The Simpsons, and the 458th episode overall. It originally aired on the Fo
Joe Mantegna guest starred in the episode as recurring character, Fat Tony.
Sideshow Bob
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Dr. Robert Underdunk "Bob" Terwilliger, PhD, better known as Sideshow Bob, is a recurring antagonist in the animated television series The Simpsons. He is voiced by Kelsey Grammer and first appeared i
Kelsey Grammer based Bob's voice on his experiences with actor Ellis Rabb.
Sideshow Bob's brother Cecil was designed to resemble actor David Hyde Pierce, who also played the brother of Grammer's character on the show Frasier.
Actress Nancy Cartwright, the voice of Bart Simpson, said in her book My Life as a 10-Year-Old Boy that Grammer's performance brings "deliciously vile energy" to the show.