Favourite computer game character

Personnally, for me it's all about HK47 from Star Wars knight of the old Republic. For those of you who don't know, HK47 is an assasin droid that doesn't particularly like humans/meatbags. Even when you become his master he'll treat you like crap, but in a humble way. I'll never be able to describe it properly, you'll just have to play it and find out for yourself.