Hakkar the Houndmaster was an agent of the Burning Legion who participated in the War of the Ancients.
Hakkar and his felhounds.
In the War of the Ancients trilogy, Hakkar was one of the primary lieutenants of the Burning Legion. He was the first member of the Legion to set foot upon Azeroth and was described as a huge flaming skeletal knight with a horned skull. He was sent through the portal created from the Well of Eternity to assist Xavius in strengthening the portal, preparing for the rest of the Burning Legion to come forth. Hakkar's primary weapon was a whip which could be used to summon a seemingly limitless supply of felhounds to do Hakkar's bidding. Hakkar attempted to remove Krasus and Malfurion from the resistance, but quick intervention by the Sisters of Elune saved the wayward pair. Hakkar inflicted fatal damage upon the High Priestess of Suramar and was about to murder Tyrande when Malfurion Stormrage stepped in to prevent his love from being destroyed, calling down a fierce lightning storm to vanquish the Houndmaster.
In the original timeline, Hakkar survived the War of the Ancients and was killed during the Third War. When the Old Gods warped time and space in an effort to escape their prison, the timeline was altered in a variety of ways, among them Nozdormu's efforts to stop them, which in turn altered the course (though not the outcome) of the War of the Ancients. Hakkar's death at the hand of Malfurion Stormrage was one result of this, signifying that the old timeline was being overwritten, not relived.
Hakkar's disciple, Omor the Unscarred, took charge his remaining felhounds after his death during the War of the Ancients.
- "I am Hakkar... and you are nothing."
Houndmaster and Soulflayer
According to an interview with Richard A. Knaak, who wrote the War of the Ancients Trilogy, Hakkar the Houndmaster and Hakkar the Soulflayer are two different entities:
Hakkar first existed in The Well of Eternity, as Hakkar the Houndmaster, my creation. Blizzard must have liked the name, because they accidentally took the name afterward for the troll god. Chris Metzen apologized for the mix-up at the L.A. Festival of Books.