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Smilin' Joe Fission

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Smilin' Joe Fission
Smilin' Joe Fission.png
Character Information
Male ♂
Age: Expected to live 24, 400 years
Occupation: Film Strip Commentator
First appearance: "Homer's Odyssey"
Voiced by: Harry Shearer

Smilin' Joe Fission is the official mascot of the Springfield Nuclear Power Plant and the Springfield Isotopes.


He starred in a filmstrip about nuclear power, which was shown to Bart's fourth grade class when they visited the plant on a school trip.[1]

A Smilin' Joe Fission Eternal Night Light was on sale at Cockamamie's.[2]

His pet peeve is to be mistaken with Ross Perot. He has been featured in other animated atomic films, such as Atom and Eve: A Return to Eden, Why Flesh Won't Fall Off Your Face, and Please Don't Eat the Daisies Near the Recovery Tank.[3]


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