Marcille is an obese half-elf with long blonde hair, green eyes and rounded elves ears, an indication of her being a half-elf. In her normal dungeon attire, she wears a long blue dress that somehow can't contain her overhanging belly with white pants that are holding on by a thread, a blue cowl, a red choker, and sandals. She styles her hair differently every day. Marcille is intelligent, principled, and loyal to her friends. Despite this, she can also be very high-strung.