The fur color of the Wolves range from white, brown or gray. They stand on their hind legs like humans do and unlike real wolves they have short snouts.
The Wolves prowled around the School for Evil and punished Nevers who misbehaved. If a Never committed a crime bad enough, they were sent to the Doom Room, where The Beast, from Beauty and the Beast, punished them severely. When a Good student failed, the punishment was to be transformed into a Wolf to serve the School of Evil. This was revealed when Bane made the wish that all of the students would know the truth, which Agatha granted. During the Circus of Talents, Sophie ordered ravens to kill all of the Wolves. Two of them managed to narrowly survive, but were soon killed.
Wolves are shown to be ferocious and unforgiving, punishing students for breaking the rules.