Uncle Willy or, how he prefers people call him, Uncle Adventure is a character in The Chipmunks series and also Dave's uncle.
Willy is an elder man with white hair, a long nose, tiny eyes and glasses. He always wears a brown jacket and a brown hat.
Adventure is a strong and active man for his age, able to carry a large backpack and all three of the boys at the same time. Uncle Adventure has taken part in many journeys, such as being thrown into a volcano and meeting tribes, and is angered when people view him as a fragile senior citizen. He is determined not to let anyone tell him how young he can act as a result of his elderly appearance.