Baelog

Baelog is a level 41 elite dwarf quest giver located in the Dig Two section of Uldaman. Horde characters can kill him for loot.

Baelog, Eric "The Swift" and Olaf are a reference to The Lost Vikings.

He starts the following quests:

See Uldaman NPCs.

Cataclysm
In World of Warcraft: Cataclysm Baelog and his companions will leave Uldaman and reside in the Alliance encampment in the Badlands called the Dragon's Mouth.

Quotes

 * "It's about time you showed up!"

Loot
He is presumed to be the author of Baelog's Journal, which describes the process of opening the Chamber of Khaz'mul.