Lord Cutler Beckett, is the main antagonist of the Pirates of the Caribbean franchise, is the overarching antagonist of Pirates of the Caribbean The curse of black Pearl , Dead Man's Chest and The main antagonist of Pirates of the Caribbean in World's End.
He is the tyrannical leader of the East Indies trading company and is the culprit of labeling Jack Sparrow a pirate.
I'm going to, of course, ignore Rings of Power. As usual, no real people and no characters from LOTR. I might be a bit more flexible about gender-swapping roles for this one because LOTR has very few female characters, though.