Mayor of New York City
From the Super Mario Wiki
In The Adventures of Super Mario Bros. 3 episode "Recycled Koopa", Mario and Luigi, believing the Mayor of New York City can help them clean up the garbage Bowser is dumping on Brooklyn, go to the New York City hall to find him. Arriving at the city hall, Mario and Luigi are horrified to find that the mayor, like everyone else nearby, has begun to mutate into a Koopa Zombie, with only his head remaining human. Before Mario or Luigi can speak with the panicking mayor, he fully transforms into a Koopa Zombie and runs into the streets of the city, where he joins a horde of his mindless, Koopa Zombie brethren.