Apprentice Osterkilgr

Apprentice Osterkilgr is a vargul in the Underhalls in Icecrown. He is a laboratory assistant to Doctor Terrible, who carries out experiments on building flesh giants out of vargul parts.

Involved in quests
The player beats the apprentice up, then kills him.
 * Deep in the Bowels of The Underhalls

The apprentice drops Dr. Terrible's "Building a Better Flesh Giant", that starts this quest.
 * The Sum is Greater than the Parts