The Simpsons Season 21 Episode 22 The Bob Next Door ( Air Date 2010-05-16 ) Genre Family, Animation, Comedy category. Overview "Bart becomes convinced that his new neighbor, Walt, is his archenemy, Sideshow Bob, disguised and back for revenge. But when Marge tries to convince Bart otherwise by taking him to visit the state penitentiary, a disturbing truth is revealed.".
The Simpsons Season 21 Episode 22 The Bob Next Door
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- Watch: The Simpsons Season 21 Episode 22 The Bob Next Door on CWR-CRB
- Stars: Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith, Hank Azaria, Harry Shearer
- Director: Danny Elfman
