Alphonse Perrier du von Scheck

"Did you think I'd let you win, let you save your little neighborhood? Don't you realize who I am? I am Alphonse Perrier du von Scheck. I can trace my ancestry back to the founding fathers. Do you know when we lost control of this city? When that ridiculous Tomato Incident took place in your pathetic little neighborhood. Tearing it down and putting my name upon its place will be revenge of the sweetest kind."

- Scheck's true motives for tearing down Arnold's neighborhood

Alphonse Perrier du von Scheck was the main antagonist in the animated movie Hey Arnold!: The Movie. He is the German American CEO of Future Tech Industries, a corporation that bought up and attempted to tear down Arnold's neighborhood.

History
He is the direct descendant of Archibald Von Scheck, British colonial governor of Hillwood area during the Tomato Incident. Nick Vermicelli directly answers to him.

He was also mentioned in the chapter book "Arnold for President", where Helga manages to get his help to build a skateboard ramp at PS 118.

It is considered, generally, the most evil character in the series. While he appears to be a nice if somewhat weaselly developer at first, he's eventually revealed to be downright cruel, with no redeeming qualities whatsoever. He wants to tear down Arnold's neighborhood and build a shopping mall over it because a historical incident occurred there that sullied his family name. While definitely corrupt, that's not really that bad in itself. But stealing and later burning the document declaring the neighborhood a historic landmark, trying to stop a bus - with children on it - by ordering the overpass they are driving on blown up, and being completely willing and eager to run down a crowd of people, including children, with his car crosses a line.