From WoWWiki

Gurgthock is a level 65 quest giver located at the Laughing Skull Ruins in the contested territory of Nagrand. He, along with Wodin the Troll-Servant who stands next to him, are named after two prominent members of the guild Elitist Jerks of the server Mal'Ganis(US).

He starts the following quests:

•  [67+] The Ring of Blood: Brokentoe (Group)
•  [67+] The Ring of Blood: The Blue Brothers (Group)
•  [67+] The Ring of Blood: Rokdar the Sundered Lord (Group)
•  [67+] The Ring of Blood: Skra'gath (Group)
•  [67+] The Ring of Blood: The Warmaul Champion (Group)
•  [68+] The Ring of Blood: The Final Challenge (Group)

See List of Nagrand NPCs.