Magellan

Japanese name:

マゼラン

The Chief Warden of Impel Down and the main antagonist of the Impel Down arc.
Magellan is a large man, about three times the height of a normal human. He has a face that resembles a mandrill, with very sharp teeth and a thick beard. His fingers closely resemble those of the Blue Gorillas. He wears bat wings and horn-like ornaments on his head, the latter of which he can pull out and use as weapons. Underneath those horns, he has short black twintail-styled hair. Overall, Magellan resembles a devil.

While most guards wear a white-colored uniform, Magellan wears a black-colored suit with a red shirt underneath. His suit features more buttons than those of his subordinates. Draped over his right shoulder is a piece of rope. He wears what appears to be the standard cap of Impel Down workers. Twenty years ago, while Magellan was still the vice-chief, he had the same attire as he did today, with the exception of the uniform being tan instead of black, and a green shirt.

Onepiece wikia