Calder Gray

Calder Gray is a really insane Forsaken quest giver found in Southern Barrens and later in Twilight Highlands, where his creation is one of the matches of the Crucible of Carnage.

He is later found in Mount Hyjal during the Firelands Invasion for Quest:The Protectors of Hyjal.

Background
Calder Gray was unceremoniously booted from Orgrimmar, hauled through the main gates. Unknown exactly why, it's likely to do with his... "research".

Quests

 * Southern Barrens
 * Quest:Hearts-is-Hearts
 * Quest:Parts-is-Parts
 * Quest:Smarts-is-Smarts