Reference any and all of my characters, I will never not be pleased. XD

This is what I have for now:

Harry

• {*]He tutored a lot at Hogwarts, and is actually a pretty patient teacher.
  
• He specializes in solutions to ~unusual problems. He's the Alternative Medicine guy.
  
• He's actually really good at remembering people. If you've ever had a significant encounter with him, he probably remembers you.

James

• If he doesn't have to be inside, he probably isn't.
  
• He usually has a book with him.
  
• It is very easy to convince him to help with (harmless) mischief. Distressingly easy, one might say.