Hesperdan

Hesperdan was an archmage in the Zhentarim. He was considered by some to be perhaps the greatest tyrant mage in all of Faerûn.

He schemed to bring Fzoul Chembryl to power in the Black Network, thus allowing him to use Manshoon for his own purposes. Once, speaking to himself, Hesperdan implied that he might not be considered a "man" after all.

In 1479, he revealed that he was also the black dragon called Alorglauvenemaus, having mastered the ancient elven magic of weredragoning. His main concern was the plots of Vangerdahast of Cormyr, whom he considered more dangerous than the Zhentarim. He died that year fighting with Elminster and some War Wizards of Cormyr.