Abdul the Insane was a human sailor with the Northsea Freebooters until the crew came into possession of the Staff of Storm's Fury. The staff drove Abdul mad, and the rest of the crew abandoned their ship and their insane crew member in Iskaal. He was later slain by adventurers in Northrend.
Abdul the Insane is a level 72 elite mob in World of Warcraft: Wrath of the Lich King. He may have been inspired by the Lovecraft character the "Mad Arab" Abdul Alhazred.