Ogres
Ogre society is clan-based, with ogre clans erecting mounds and generally avoiding contact with outsiders save for raids. Within the clans, the hierarchy is based on physical size and strength; the leader of an ogre clan is almost inevitably the largest and strongest ogre. Ogre-magi fall outside this norm and powerful magi often control the clan through the leader thanks to the rather large advantage in intelligence. If an outsider defeats the current leader of a clan, they are often deemed the new leader, partially out of fear of being killed as well.
Introduced in Warcraft: Orcs & Humans, Ogres are members of the Horde in Warcraft II; in Warcraft III they are encountered both as hostile critters and friendly mercenaries. Ogres are not a playable race in World of Warcraft, though some ogres appear as monsters and non-player characters. Following the defeat of the original Horde, the various ogre clans scattered across Azeroth, claiming land and erecting ogre mounds. Most ogres hold allegiance only to the strongest ogre of their clan and are hostile to any outsider, though some also take up mercenary work. The Stonemauls are the only clan to maintain a friendly relationship with the Horde, though they no longer lend the orcs direct support.
In the expansion World of Warcraft: The Burning Crusade, many ogres can be found in Outland. Their presence has proved a serious issue for the Mag'har and Kurenai, only exacerbated by the efforts of the Gronn. However, ogres in the Blade's Edge Mountains have established an enlightened group who have transcended their brutish nature aided by the powerful influence of the Apexis Crystals, forming the group of Ogri'la. Players are neutral with this group initially but can become friendly after a series of quests that result in the player being named a King or Queen of the Ogres.