|Name||Dr. Horace Worblehat|
|Race||Orang-utan, originally Human|
|Occupation||Librarian of the Unseen University|
|Physical appearance||About 300lb, very long arms, reddish-brown hair (all over).|
|Residence||The Library of the Unseen University|
|Books||The Light Fantastic, Equal Rites, Sourcery, Guards! Guards!, Eric, Reaper Man, Men at Arms, Soul Music, Interesting Times, Maskerade, The Last Continent, The Last Hero, The Science of Discworld, The Science of Discworld II: the Globe, The Science of Discworld III: Darwin's Watch, Unseen Academicals|
|Cameos||Mort, Wyrd Sisters, Small Gods,Jingo, Lords and Ladies, Going Postal, Making Money, Thud! Hogfather, Night Watch, Moving Pictures,|
The Librarian is a faculty member, and was once human wizard named Dr. Horace Worblehat. A strong wave of magic, altering reality, transformed the Librarian into an orang-utan, Pongo pongo, native of Bhangbhangduc and nearby islands; at that time, his colleagues still remembered how he looked as a human (The Light Fantastic). Back then, wizards were much too busy to help him get back to his original human form (although there is no record of his asking for help, either). After things settled down, the Librarian's colleagues found that he liked being an orang-utan, and fought all efforts to transform him back to human. The Librarian found out that opposable toes come in very handy when climbing up the book-shelves and sorting books. Also, a very large and strong orang-utan has more plausible arguments when talking about dog-ears and overrun return deadlines. Although the senior wizards looked very hard for one, there are no rules in the university constitution forbidding an orang-utan to be a member of the college council.
In appearance he has the rubber-sack-filled-with-water look of a well grown, 300lb male. He has not, however, developed the overlarge cheek pads that are a feature of the dominant male orang-utan, and this is because, as an ex-officio member of the University faculty he quite rightly regards the Archchancellor as the dominant male, even though most Archchancellors do not sit high up in trees with leaves on their heads.
Very soon, people forgot how the Librarian looked as a human, or what his given name was (though the latter is true for most other faculty members as well). This was helped along by the Librarian methodically removing, defacing or otherwise altering any and all photographs and records of his name in the University files - and by the constant infighting at the university, especially during the brief but terrible reign of Coin the Sourcerer, resulting in the demise of a considerable number of such wizards as had known him as a human: part of the premise for the events of The Last Continent is that Rincewind is one of the few remaining wizards to have actually survived University life since before the transformation, and thus is likely to know the Librarian's human name (although the reason for wanting to know it is to cure him of a cold, but by the time the wizards catch up with Rincewind, their accidental holiday has already done the Librarian a power of good, he has made a full recovery and nobody needs to ask Rincewind about the Librarian's identity.) It is rumoured that the Librarian was once Dr Horace Worblehat, but no one utters this out loud. We do know however that he was born in Moon Pond Lane, Ankh-Morpork, and that for centuries his ancestors were upstanding feed-and-corn merchants. Nowadays, only people very new to the University or Ankh-Morpork will find themselves surprised that there is an orang-utan in a University Library, or in a pub. Indeed, if someone were to point out that there is an orang-utan in the library, the wizards would probably ask the librarian if he had seen it.
All the Librarian ever utters is 'oook' or 'eeek', but by now the wizards, and especially Rincewind, are so used to this that they understand the Librarian perfectly. They can even translate the merest 'oook' into full-fledged literary English sentences.
The Librarian is a member of the Librarians of Time and Space, and has the understanding of the power of L-Space, and has used these powers to appear at certain times to ensure the safety of particular books, bringing them home to his precious Library at UU.
During the events of The Last Continent, the Librarian's morphic field became highly unstable whilst he was suffering a severe cold. This instability manifested as a tendency, each time he sneezed, to transform into whatever shape best suited his immediate surroundings, e.g. a book ("The Story Of Ook"), a deck chair, a large penguin, a dolphin. Perhaps because his usual and preferred form as an orang-utan so suits his deeper nature, all such alternative shapes retained his luxurious coat of long red hair.
When worried, the Librarian tends to hide under a blanket in his book-lined nest in a cubby hole under a desk in the middle of the library. He is generally naked but he does wear an old green robe after he has had a bath. He is also a Special Constable of the Ankh-Morpork City Watch. In his spare time he visits the pub, leaving a trail of peanut shells behind. Now and again he hops over the wall into the Patrician's Palace Menagerie by night and is said to emerge the next morning looking exremely refreshed and relaxed. It is unclear as to what he actually does in there, as the Menagierie houses no orang-utans of either sex.
Despite his usually easy going nature, it should be noted that the Librarian is an ape rather than a monkey and is extremely eager to correct people on the subject in uncharacteristically violent ways. He can also become physically assertive when enforcing the prohibition against open flame inside the University's library, or when otherwise acting in defense of his literary charges. Tending to books, the Librarian displays an excellent bedside manner, gently stroking distressed or damaged texts to soothe them as he conducts repairs.
The Librarian appears in almost every Discworld book, and is the source for the constant engagement of Terry Pratchett and his fans for the Orangutan Foundation. He has yet to be the focus of a Discworld novel; Pratchett admits that an inner monologue that consists entirely of 'ook' is not particularly engaging.
An interesting footnote
The collective noun for a group of orang-utans is a buffoonery. There may only be one orang in the University Faculty, yet this is the grouping this orang is forced, by circumstance, to associate with and seek shelter within....
There may be an influence here from Little Fuzzy by H. Beam Piper, which features a culture of (small, cute, furry) sentient aliens whose language to an untrained human ear sounds like nothing but instances of 'Yeek!'