-Viconia. A female drow. On the surface world. Yeah no special secret or whatnot but this alone makes her an rarity. And she also doesent seem to want to kill every man she meets (even though she does think them inferior) which also makes somewhat of a rarity in drow society. Yeah nothing special to see here.
You skip her story?
She was exiled from Underdark so she run to surface world where she meet Flamign Fist members who want kill her, and you rescure her in Baldur's Gate 1. She have every one because that is drow nature they have this because they was teach to live in that way.
In Baldur's Gate 2 she is even mroe interesting. You again rescure her from beeing burned by viligers and paladins. She told you story what how she start living in house after leaving your party and how she wasa buried alive and raped. She is very tragic character and have lots of wounds make by her own kind and humans.
