Wamuu is introduced as a servant to both Esidisi and Kars. He is a very strong and honorable warrior who possesses the power of the wind, and also reflexively attacks anyone who steps on his shadow. If he goes blind, he can grow a horn on his forehead and sense sound waves with it. He can also draw air into his body and blast it through the tip of the horn, creating a highly-destructive "wind scalpel". He is also extremely honorable, stopping himself from defeating a defenseless Joseph Joestar when he said that with a month to train he could beat Wham.

He is named after the 80s duo featuring George Michael, Wham!.