Feral Children

I just started Michael Newton's book Savage Girls and Wild Boys. First example: in 1998, Ivan, a 4 year old boy in Moscow, left his home to live in the streets. He befriended a pack of stray dogs who protected him in exchange for scraps of food. I have decided to follow Ivan's example and leave 425. I will befriend the pack of rats who munch on refuse at the corner of 4th St and 7th Ave. Within a month, I guarantee I will be the Rat King. For 10 points, can one of our readers tell me which cartoon the Rat King was from?