Skeletor () is a supervillain and the main antagonist of the Masters of the Universe franchise created by Mattel, serving as the archenemy and uncle of the protagonist He-Man. He is typically depicted as a blue-skinned humanoid who wears a purple hood over his bare-bone skull. Skeletor is determined to gain the powers of Castle Grayskull and rule the planet Eternia, and the entire universe; however, the incompetence of his henchmen is always an impediment to achieving his ambitions. Appearances Pre-Filmation minicomics ("savage Eternia") The first minicomics that accompanied the 1981–1983 line of Masters of the Universe toys presented the earliest version of continuity and displayed many differences from the more widely known continuity of the later cartoon made by Filmation, and the later minicomics which complemented it. He-Man was depicted as the scarcely superhuman champion of a tribe of stone-age jungle-dwellers. There was no royal court of Eternia, King Randor, Queen Marlena, or Prince Adam yet. These very first minicomics, which were actually more like storybooks, with a single image per page footed by prose, stated that Skeletor was originally an inhabitant of another dimension, populated with others of "his kind". During "The Great Wars", an ambiguous concept which is largely ignored in later continuities, a hole was opened in the dimensional wall and Skeletor was thrown from his world into Eternia. Significantly different from the lonelier and entirely self-serving Skeletor of later depictions, the villain's key motivation in this first story is to reopen the rift between his world and Eternia, thus allowing Skeletor's race to invade and conquer Eternia alongside him. This was the initially stated reason behind Skeletor's desire to obtain the powers of Castle Grayskull, not merely seeking power for its own sake as is generally the case in later depictions. Filmation He-Man and the Masters of the Universe (1983) In the 1980s cartoon series, Skeletor is a former pupil of Hordak, a high-ranking commander of the Evil Horde. When Hordak invaded Eternia and kidnapped one of the King and Queen's twin babies from the palace, Man-At-Arms and the Royal Guard captured his apprentice, Skeletor, and forced him to divulge the whereabouts of his master, who had retreated to his base of operations, Snake Mountain. When cornered, Hordak opened a random dimensional portal (later revealed to have led to Etheria) and leaped through with the baby Princess Adora in his possession. Skeletor remained on Eternia,