Give us a clue.
It's probably not Professor Moriarty.
OK. During WWII he was propagandized to the American public as a kindly, pipe-smoking "Uncle" with a handlebar moustache. And that was after our politicians knew he had overseen the deliberate starvation genocide of as many as 10 million Ukranians and the assassinations of thousands of his own loyalists.
Meanwhile his spy and disinformation networks riddled the Roosevelt administration and maneuvered it into helping him enslave the bulk of Eastern Europe behind an Iron Curtain. They even helped him get uranium for his A-bomb development during the war before we'd developed our own bomb. Does that help?