Lotton the Wizard is a villain from the manga/anime Black Lagoon.

A mysterious-looking and silvery-haired figure who wears a trenchcoat and shaded sunglasses, he is soft-spoken and is something of a show-off as well, tending to make more or less fancy entrances, and he is actually much more of a poser than an actual fighter. His weapon which he carries around is a semi-automatic pistol which he is not shy to boast a bit about when making one of his 'grand entrances'. Also, he occasionally works as a bounty hunter.