Cuphead is the titular character of 'The Cuphead Show!' based on the popular video game. He is an adventurous and impulsive cup who lives with his brother, Mugman, in a whimsical world inspired by 1930s cartoons. His character is known for being mischievous and often finds himself in troublesome situations due to his reckless nature. In the series, Cuphead and Mugman embark on various adventures, encountering a wide array of eccentric characters, and often find themselves in hilarious predicaments. Cuphead's cheerful and daring personality makes him the driving force behind the dynamic duo's escapades.