Wulf is a large, muscular ghost resembling a werewolf with black fur, green eyes, retractable green claws on his hands, and large saber teeth. He wears a tattered green hoodie with torn-off sleeves, tattered green pants, and a shackle on his left wrist.

Wulf speaks some form of Esperanto and has retractable claws that have the ability to tear open portals between Earth and the Ghost Zone.