Radioactive Man (The Simpsons)

Radioactive Man is a major character from TV Series "The Simpsons".

He appeared for the first time in the episode "Bart the Genius".

He is a comic book superhero who acquired his powers after surviving an atomic bomb explosion. His sidekick is Fallout Boy, and his catchphrase is "Up and atom!" He is a member of the the Superior Squad.

He also appeared in "The Simpsons: Tapped Out".

He is voiced by Harry Shearer.