Mugman is a central character in The Cuphead Show!, an animated series based on the popular video game Cuphead. He is the younger brother of Cuphead and often serves as the more cautious and level-headed counterpart to his impulsive sibling. Together, they embark on various adventures filled with challenges and mischief. While Cuphead tends to dive headfirst into trouble, Mugman frequently acts as the voice of reason, trying to keep them both out of harm's way. His character adds depth and humor to the series, making him a beloved figure among fans.