Kinsos
Why does he care about Dumbledore? In my opinion, if he wants to help he should do it from the shadows. And maybe troll people and events, and get money and books (steal). While this is quite unique reincarnation story, it would be much better and original if he wasn’t participating in original plot. Well, at least officially. But that is definitely harder to write, so not many authors of fanfics choose that road, unfortunately. HP world have soo much potential, but apparently people lack imagination. I unfortunately don’t have any talent in writing… soo I can’t really criticise too much…