I only have a few on my list so here we go.
3. Kyle Katarn- He is a respected master, but I don't know much about him. Could anyone recommend a book with Kyle doing awesome stuff in it?
Kyle is as famous as he is due to the Game he starred in, "Dark Forces" or something like that.
He isn't a main character in NJO but he is frequently involved in the events. And in the NJO Series he becomes Battlemaster.
He hasn't really been in anything where he is a main character. But he is in allot of books that The NJO is greatly involved in, like Swamp War and Dark Nest..