Glossu Rabban Harkonnen, Count of Lankiveil. Based in Carthag, he is commonly known as The Beast, Mudir Nahya (Demon Ruler), or King Cobra by the Fremen. He rules Arrakis for his uncle, Baron Vladimir Harkonnen. He is sadistic, cruel, short-tempered and dim-witted.
He is low built, gross of face and body, with narrow-set eyes and bulging shoulders.