Mugman is very similar in overall appearance to his older twin brother Cuphead, with his head reminiscing a mug and his body being almost identical to his sibling: wearing a black, long-sleeve shirt, yellow gloves, a pair of shorts and brown shoes, although artworks sometimes show him with white gloves. Mugman cares for his older twin brother Cuphead very much. He is more cautious than his brother and he's more shy and polite, he's 13 years!! Elder Kettle is his parent, same as Cuphead.