Kelsey Grammer's real-life prison stint adds unexpected authenticity to his iconic Sideshow Bob role on The Simpsons.
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Grammer spent a short stint in prison in the 1980s, which he says helped him better understand the mindset of his Sideshow Bob character.
The Simpsons writers were able to incorporate Grammer's firsthand experience into an episode where Sideshow Bob is incarcerated, adding an extra layer of realism to the character's portrayal.