The Librarian of Unseen University is an oran-utan. This was not always the case, he was magically transformed by events and was a human shape for the first several decades of his life, and wizards say he was merely marking time until he could become his own self.
In looks he has the red-haired-rubber-sack-filled-with-water look of a very well-grown 300lb male, he tends to be naked but he does wear an old green robe when he’s had a bath or modesty really requires it.
