A creation of
Terry Pratchett. Skinny, scrawny, very, very fast. He's a
wizard who doesn't know any
spells. Or, to be more accurate, he knows exactly one spell, which is so mean and powerful that it scares other spells out of his head (or, perhaps eats them...).
As I mentioned, Rincewind is _fast_. He is one of the few people who really know that a man can outrun a horse, at least over short distances. You see, a man has less legs to sort out than a horse, and can be gently fading over the horizon by the time a horse gets going. This is the kind of logical illogic that makes Terry Pratchett a literary god and makes his Discworld series so very readable.
Rincewind is arguably the most central character of the Discworld series, starring in almost a dozen books and appearing in others. His scraggly beard, tattered robe, and big hat that says 'wizzard' just in case anyone has doubts are all hallmarks of the entire series.