Werewolf
Werewolves were part-wolf, part-human creatures whose exact nature varied greatly between universes.
History
In one universe, Jenny Everywhere had, in addition to the vampiric Kim, another friend called Fiona who was an Irish werewolf, capable of transforming at will into her quadrupedal wolf form. As a werewolf, she was invulnerable to all except silver. (PROSE: Camera Shy)
In Reality Z-25 31-H the superhero known as the Big Bad Wolf transformed from a typical human man to a hirsute wolf-headed humanoid by taking a special pill. He worked with another superhero called Red Riding Hood. (COMIC: Red Riding Hood)
In at least one universe, Eddie Munster, the son of Herman Munster and Lily Munster, was a werewolf; even in human form he exhibited sharp fangs and pointed, wolf-like ears that allowed his nature to be plainly identified. Upon meeting the Munsters, Junter was confused at how a Frankenstein Monster and a Vampire procreating had produced a werewolf. (COMIC: Real Estate-Related Pun)
At the Interdimensional Tavern's 2019 Halloween party, among many other things done to mark the occasion, a “real werewolf” had been hired to “provide entertainment”. (PROSE: The Ghosts and the Machine)
A certain Bisclavret once called the Multidimensional Finders Service, asking “where his skin was”. Jenny Over-There, who got the impression that he was “a dog or something”, told him that his skin was currently around his bones before hanging up. (PROSE: A Series of Queer Events)
Other references
After she elected to disguise herself as a ghost for Strach's Halloween party at D'Ismay Mansion, Jenny noted that she could also do “a mean werewolf”. (COMIC: Jenny Everywhere in the House of Terror)