Mont-d'Or is the 19th son of the Charlotte Family and Minister of Cheese in Totto Land, where he runs Cheese Island. He's a member of the Big Mom Pirates.
Physically, he's pretty distinctive—lanky with long limbs but a stocky midsection, a rounded jutting chin, and a sharp pointed nose. He's got a noticeable slouch and dresses in an open-chested dark jumpsuit decorated with skeleton patterns along the limbs and ribs. He tops it off with a dark top hat sporting a light pink ribbon, dark lipstick, and thin black eyeliner streaks down each eyelid. Fans often note he basically looks like a kid's skeleton Halloween costume come to life.
Personality-wise, Mont-d'Or is genuinely terrified of Charlotte Linlin, which makes sense given who she is. He can be rude and suspicious—so suspicious that he doesn't even fully trust his own brothers. Despite that paranoia, he's got an authoritative streak and isn't afraid to take charge in meetings with his siblings and Big Mom's crew, issuing orders to his underlings regardless of what others like Opera might suggest.
Content compiled by AnimeList.moe from publicly available sources.
