yeah I mean ....I don't even know if I'm sure about some characters anymore..it's like when you get more into the story your losing some memory about what that person really is..ok well ...I have no idea about the Zaoyldecks that much. And Killua is 12 and I think Karuto is 11 or 10.
I have no idea where Alluka fits in. When did they mention him anyway? I forgot...I don't really remember them mentioning him. They do have a kid, they have a son. Heh. Hopefully he becomes a manga artist too...but actually finishing what he writes ^_^