Magneto

Magneto, real name Erik Lehnsherr, is a supervillain in Marvel Comics.

History
A child was playing him in a play on the Royalty Valhalla. He said that they had to rule the humans.

Milhouse said "The kind of hate only found in Magnetos, Emperors Palpatine and little girls!"

In a mash-up by Bart with Magneto and James Cagney you get Cagneto.