Mug'thol was an ogre from Draenor who fought during the Second War in the orcish Horde. (LoC 86) When the Horde was defeated and scattered, Mug'thol was a member of the Stonemaul ogre clan. The clan apparently split into two, one group remained in Lordaeron under the leadership of Mug'thol while the other group traveled to Kalimdor and joined the New Horde. Mug'thol led his group of ogres in the Plaguelands and was preparing them for battle in the hills, however, he found himself caught in the middle of a battle between Sylvanas Windrunner and the Dreadlord Varimathras.