Drizzt Do'Urden is a drow and a great hero in the Forgotten Realms. He appears both in Baldur's Gate and Baldur's Gate 2. In both games he wields his trademark Scimitars(Defender and Frostbrand) and wears a Mithril Chain Mail +4.
In Baldur's GateEdit
Drizzt can be found fighting off Gnolls in Area Northwest of Nashkel. He asks the player for help in fending them off, though he obviously does not actually need it.
In Baldur's Gate 2Edit
You will meet him in a "random" encounter the first time you move on the world map after escaping from the Underdark. He will be accompanied by his friends from the novels. You can ask him for help against Bodhi. Should you get help from him he and his friends will be waiting in the north-east corner of the Lower Tombs.
He also appears in the City of Caverns as an illusion created by 2 imps for their riddle game.
See the Area Northwest of Nashkel article for how to kill him in Baldur's Gate.