Yogg - Saron Yogg - Saron is a named Old God , one of the mysterious and dreaded elder beings that were defeated and sequestered by the Titans during Azeroth ' s primordial ages . Upon their fall at the hands of the Pantheon countless millennia ago , Yogg - Saron was imprisoned inside a Titan complex within the depths of what would become the continent of Northrend . The official title of Yogg - Saron is " Hope ' s End " . With the powerful Old God being one of the most feared in Azeroth , this title suits it perfectly and has been whispered throughout the world . Yogg - Saron made its first appearance in " World of Warcraft " as the final boss in the raid dungeon Ulduar , which was implemented in patch 3 . 1 . It is voiced by Jamieson Price . Lore . History . One of the greatly malevolent and ancient entities known only as Old Gods , Yogg - Saron held chaotic tyranny over the world of Azeroth in its very distant past and was responsible for the creation of the Curse of Flesh to " facilitate assimilation " of the Titans ' creations . When the Titans waged war against the Old Gods and shattered their citadels , they found that the entities ' infestation had grown so severe that destroying the Old Gods would also lead to the annihilation of Azeroth . Instead , the Pantheon took measures to neutralize the Old Gods ' power and to bind them within Azeroth for the remainder of its existence . Yogg - Saron was sealed away within the depths of Ulduar in the far northern reaches of the infant world , and had six watchers assigned to it which served as wardens for its near eternal imprisonment ; the Titanic watcher s known as Loken , Thorim , Hodir , Tyr , Mimiron and Freya . Yet despite the power of the shackles which the Titans placed on the Old God , Yogg - Saron ' s influence has been felt throughout Azeroth ' s history , including during some of its most pivotal events . The whispers of Yogg - Saron proved capable of eventually overtaking the mind of its prime warden , Loken , who was then able to subdue the other watchers , facilitating any possible escape Yogg - Saron might seek to attempt . During the encounter with the Old God in the Ulduar raid , three visions are shown to players which represent key moments in the history of Azeroth ; strongly implying Yogg - Saron can be directly linked to these events somehow . These visions include the creation of the Dragon Soul by Neltharion and the Dragon Aspects during the War of the Ancients ( which resulted in the Sundering of the world ) , King Llane ' s assassination by Garona Halforcen ( which caused the fall of Stormwind at the end of the First War ) , and a vision of the Lich King torturing Bolvar Fordragon ( the man who would become the new Lich King after Arthas Menethil ' s death ) . During this third vision , the voice of Yogg - Saron can be heard proclaiming : " " He will learn - - no king rules forever ! Only death is eternal ! " " , a prophecy of the Old God that would come to pass with Arthas ' defeat by the Ashen Verdict , and the words of which are eerily repeated by the spirit of Terenas Menethil as his final words to his dying son . Yogg - Saron also appears to have been the source of the corruption that befell the world tree Vordrassil , after its roots grew too close to the Old God ' s prison . The ancient druid s growing Vordrassil destroyed the tree immediately upon discovering the sheer power behind Yogg - Saron ' s tainting influence , however the corruption nonetheless continued to spread to the Grizzlemaw Furbolgs who came to inhabit the tree ' s stump ages later . They became murderously insane soon after settling within Vordrassil ' s remains , and began attempting to regrow the afflicted world tree . The Furbolgs also used the dire power still emanating from the tree ' s stump to resurrect the bear god Ursoc , who returned to the world as a viciously twisted reflection of his former self . Saronite and the Scourge . Throughout Northrend , deposits of a mysterious ore named " Saronite " can be found , which is called " The Black Blood of Yogg - Saron " by the Tuskarr people and who advise any who will listen to keep their distance from it . Saronite is capable of driving any who come into contact with it to violent insanity , and it appears to be a type of byproduct of the Old God ' s physical manifestation . The Scourge mine extensively for this material ; It is used in their fuel , armament , weapons and most notably in the construction of their buildings , including Icecrown Citadel itself . Alliance questing reveals however that the Scourge mysteriously utter the name " Yogg - Saron " with great hatred and contempt . Blizzard representatives have stated that they feel the connection between Yogg - Saron and the Lich King ended up being poorly expressed in - game , but added that it " had a lot to do with the ability for mortals to become corrupted . " The Faceless Ones . The Faceless Ones are unnatural , grotesquely misshapen and insane beings of unknown origin which appear to be closely connected to Yogg - Saron . Described by Kilix the Unraveler as " a tendril of the Old God ' s will , made manifest in the creatures known only as " The Faceless " " , the Faceless Ones have liquid Saronite for blood and seem to function as Yogg - Saron ' s heralds and guardians . Named Faceless Ones in World of Warcraft include Herald Volazj , Darkspeaker R ' khem and General Vezax . Official Ulduar intro . " For millennia , Ulduar has remained undisturbed by mortals , far away from their concerns and their struggles . Yet since its recent discovery , many have wondered what the structure ' s original purpose may have been . Some thought it a city , built to herald the glory of its maker s ; some thought it a vault containing innumerable treasures , perhaps even relics of the mighty Titan s themselves . Such speculations were wrong . Beyond Ulduar ' s gates lies no city , no treasure vault , no final answer to the Titan ' s mysteries . All that awaits those who dare set foot in Ulduar is a horror even the Titans could not , would not destroy , an evil they merely . . . contained . " " Beneath ancient Ulduar , the Old God of death lies , whispering . . . " The Whispers of Yogg - Saron . The whispers heard inside Whisper Gulch from " An Unknown Voice " are listed in the game files as " Creature - Yogg - Saron Whisper " . They sound similar to the whispers of C ' Thun , the first named Old God : In the 5 - man Ahn ' kahet instance , which features a desecrated Nerubian temple now dedicated to Yogg - Saron , " A Mysterious Voice " can sometimes be heard whispering to players at random . This voice most likely is Yogg - Saron ' s as well : In the Cataclysm expansion , the archeology profession will allow players to obtain a rare and ancient Nerubian puzzle box related to Yogg - Saron ' s dread and mysterious nature . The puzzle appears impossible to solve properly , but with every attempt the player makes they hear the Old God whispering oracular and chilling knowledge to them , several of which are references to HP Lovecraft ' s " The Call of Cthulhu " and the famous paired " That is not dead which can eternal lie / And with strange aeons even death may die " : Additionally , the quote , " What can change the nature of a man ? " is a direct reference to the 1999 RPG Planescape : Torment , which features the posed question prominently in its plot . Composition . " Yogg - Saron " is a composition of several different NPCs in the Ulduar encounter : Speculation . Connection to C ' Thun . In " " , Arthas encountered and defeated a " Forgotten One " while traveling through Azjol - Nerub which bore physical similarities to C ' Thun , the first named Old God , and which was being defended by faceless one s , which are typically associated with Yogg - Saron , hinting at a close connection between the two Old Gods . It is also possible that the Forgotten One which Arthas fought was a manifestation or tendril of Yogg Saron ' s power , but which was not at full strength due to Ulduar not yet having been fully compromised . The fate of Tyr . The watcher Tyr is seemingly missing from the Ulduar encounter , and questing reveals that unlike with the other watchers , Tyr ' s temple is the only one which shows no sign of violent overthrowing by Loken ' s armies . When asked about this , Blizzard ' s lead world designer Valnoth implied Tyr may in fact be none other than General Vezax , who has been completely corrupted and assimilated by Yogg - Saron ' s power . Other developers however commented that Tyr " was not in Ulduar " when Yogg - Saron was defeated . Val ' sharah and the Emerald Nightmare . Yogg - Saron is probably responsible for the nightmare corruption in Val ' sharah and possibly all the Emerald Nightmare . When you enter this region with a shadow priest equipped with , it whispers : " To see Yogg - Saron ' s nightmare in full bloom fills me with jealousy . . . and some pride . "