male
The Dark Lord of Europe from around 1930-1945, when he was defeated by Albus Dumbledore. In the books, he is described as a young, handsome boy with golden blond hair at 16, and as an old, frail, skeletal man with sunken eyes at the end of his life.
Gellert Grindelwald
Lord Cutler Beckett
for Lord Cutler Beckett in Pirates of the Caribbean (with Harry Potter characters)
Suggested by prithvirajbasu
The Pirates of the Caribbean franchise but it's Harry Potter characters playing them. Fantastic Beasts characters are also allowed.