Tuxedo Kamen is the mysterious masked protector in Bishoujo Senshi Sailor Moon, later revealed to be Mamoru Chiba. He appears in a formal tuxedo and top hat, often intervening at key moments to aid Sailor Moon and the other Sailor Guardians. Acting as both a romantic figure and a heroic ally, he provides support, guidance, and occasional comic mystery. His role is central to the story’s romance and to the larger battle against evil.