Cho ' gall Cho ' gall , Initiate of the Fifth Circle of the Shadow Council and Chieftain of the Twilight ' s Hammer clan , is a two - headed ogre and the first of the ogre magi . He was an apprentice of Gul ' dan . Cho ' gall , as with a number of ogres of his type , actually has two names , one for each head — Cho and Gall . His right head is voiced by Grant George and his left head is voiced by Patrick Seitz . Biography . Cho ' gall is a two - headed ogre - alongside Blackheart , one of the first seen in many generations - and was trained in the arts of the arcane by the warlock Gul ' dan , who aided the struggling ogre in mastering the powers of the Twisting Nether . In time , Cho ' gall became one of the most feared and venerated members of the Old Horde during the First and Second Wars against the humans . Cho ' gall became the Chieftain of an orc clan after the previous one was executed for disobeying the Shadow Council . Cho ' gall renamed the clan as the Twilight ' s Hammer , while all records of both the clan ' s old name and the chieftain ' s one were destroyed . Though Cho ' gall was extremely powerful , he was also dangerously insane . The clan , less of a tribe and more of a religious cult , was devoted to bringing about the apocalypse . In his capacity as a chieftain and as the right hand of Gul ' dan , Cho ' gall aided his master in the creation of the death knight s and the Altars of Storms , and in the transformation of normal ogres into ogre magi . Cho ' gall and the Twilight ' s Hammer followed Gul ' dan and the Stormreaver Clan when the warlock went to discover the Tomb of Sargeras . Though he did not enter the tomb himself , Cho ' gall was assaulted while defending Gul ' dan from the Black Tooth Grin led by Rend and Maim , the sons of Blackhand , who had been sent by Orgrim Doomhammer to destroy the traitor clans that had abandoned the war on the Alliance just before the final push on Capital City . While many perished on the Broken Isles , some members of the Twilight ' s Hammer clan were able to survive , including Cho ' gall , who had long been presumed dead at the hands of the sons of Blackhand and their Black Tooth Grin clan . . In the comic . After the battle at the Broken Isles , Cho ' gall escaped to southern Kalimdor , where he took shelter within the chamber of C ' Thun deep inside the Temple of Ahn ' Qiraj . While the Alliance and Horde were focused on defeating the Lich King , Cho ' gall hung Med ' an on the corpse of the Old God C ' Thun , where he would be tormented by the Old God ' s mad whisperings , and began making preparations for its resurrection , monstrously deforming the ogre ' s body in the process . Making their way further into the ruined temple , Valeera Sanguinar and Meryl Winterstorm confronted the increasingly hideous Cho ' gall , mutated by the power of the Old God . Together they managed to recover Med ' an , but in order to fend off Cho ' gall and give them enough time to make their escape , Valeera was forced to willingly give her body to the dreadlord Kathra ' Natir before the trio were able to teleport to safety . Later Med ' an and his allies battled with Cho ' gall , who revealed to him that his plan was to sacrifice Med ' an and use his potent magical power to resurrect C ' Thun . Cho ' gall began performing the rites and channeled a great deal of energy , but Med ' an was able to contain it within a ward around the ogre . Restoring Atiesh , Greatstaff of the Guardian to its rightful state , Med ' an focused the powers of the council through it to defeat Cho ' gall , burying him beneath the rubble of Ahn ' Qiraj . In Cataclysm . Despite being believed dead , Cho ' gall survived his encounter with Med ' an though it is unknown how . Before the Cataclysm . Sometime before Deathwing ' s return to Azeroth , Cho ' gall , using spies , managed to set up camps and bases to inspire more people in Orgrimmar and Stormwind to betray their homes and join the Cultists . Adventurers learn that Cho ' gall is leading the cult by seeing an image of him . Feralas . In Dire Maul , He gave Gordunni Ogre power as a reward for his loyalty and work for the Twilight ' s Hammer clan . Despite his attempts though , Cho ' gall was pushed out of Dire Maul by adventurers of the Horde and Alliance . Twilight Highlands . After his retreat , Cho ' gall and the Twilight ' s Hammer took over much of the Twilight Highlands . Leading the clan , Cho ' gall also had its members attack various people including King Varian Wrynn to buy time for the clan . He also apparently leads bands of gronn and ogres under him . As the forces of the Horde and Alliance attacked the Twilight ' s base in the Twilight Highlands , Cho ' gall personally attack assassins before leaving them . Later on , when the player tries to take the Hammer of Twilight , Cho ' gall personally arrives and knocks the player off the platform , revealing it to be a trap . Cho ' gall appears in the Bastion of Twilight as the final boss of the Normal mode . However , on heroic , he is the second to last as the true final boss is Sintharia , who has been revived by Deathwing and Cho ' gall . In Heroes of the Storm . Cho ' gall was officially revealed during BlizzCon 2015 as the first Duo - Player hero of the game and potentially the genre . Quotes . When the child of the three realms becomes as light , the ancient power will be released . The earth will tremble . The seas will rise up in answer , and all will be madness . A new day will dawn , bringing with it chaos or peace . Our master is a god of chaos ! Pandemonium will aid the old one ' s release ! To this end , we will weaken the barrier between Azeroth and the Elemental Plane . This will allow our great master to reclaim its former elemental servants and send them to rampage throughout our world .