Dorian Dorian (Thief)
Location: Thais, under the docks.
Notes: Dorian is the leader of the Thieves Guild. He is a clear allusion to Oscar Wilde's Dorian in The Picture of Dorian Gray, who committed crimes for his beauty; this one does it for money.
Click Here to Show/Hide Spoiler Information
Spoiler warning: Quest and/or game spoiling details follow. (Settings: hidden content)
Talk to him to start The Thieves Guild Quest.
Spoiler ends here.