Kaos was the fifth horseman of the apocralyptic riders, but he left them before they were famous because of artistic disagreements. Of course, he always said later on that he never cared about their success. He is an anthropomorphic personification.
Kaos has eyes that are completely black from edge to edge. He wears a helmet with full-face visor, on which there are strange black spots that might look like the wings of a strange butterfly, and then again might look like the eyes of some alien creature. He rides a chariot with a black horse which glows slightly red. His sword has a blue flame, burning with absolute coldness. His hands trail with cold steam.
Currently he delivers dairy products in Ankh-Morpork under the name of Ronnie Soak. (Please, read his last name backwards.) Since physical laws such as time are optional for him, he is always on time and can attend to a large number of customers each day (exactly 7 o'clock, not a second late, at everycustomer's door). Ronnie also gets to go and get the best milk from everywhere, including extinct species and from non-mammals. When not acting as an apocralyptic horseman, he uses his sword to keep the milk, butter, yogurt, cheese, eggs, etc. nice and cold.
