Willy is an anthropomorphic mouse with wide shoulders but an overall slim physique. He has a long, snout with a small pink nose and large, mouse-like ears. He has notable large, circular eyes with small irises, and his eyelids are a shiny grayish purple. He also has a long light pink tail, a trademark for most animated mice.
He wears a neon pink shirt with an angry mouse skull symbol on it, coupled with long black pants and large white sneakers with yellow undersides.
The son of a wealthy family, Willy has always had everything handed to him, including the ultimate POW Card collection. Willy has decided to try and buy up all the POW Cards in the world.
He is seen getting a tour by Krissa at the Pow Card Industries.
- He and Calopo comes from wealthy families.