Tags might not be a bad idea either since sometimes npc's get stuck near each other on the same island, so tags like (Cousin) or (Archeologist) would be good, plus then when they are found on accident the player would know where to take them without having to make multiple trips from where they are, to the EBomboria Pub, then to where the npc belongs.
Also a ton of companies copyright their characters these days, if they make a Diablo 3 I wouldn't be amazed at all the Decard Kain was in it with a nice little © after his name, haha
"Hello my friend, stay a while and listen!©"
There I just put a copyright on his most famous phrase, hahahaha.
