Гриндевальд. На обоих остриях времени

As a young man, Grindelwald had golden-blond hair and a "merry, wild" and “handsome” face. Harry Potter thought he had "a Fred and George-ish air of triumphant trickery about him".

Near the end of his life, when Voldemort found him at the top of Nurmengard, Grindelwald was severely emaciated - a frail skeletal figure with a skull-like face, great sunken eyes, wrinkled cheeks, and most of his teeth were gone.