I'm sure that our baby's obnoxious bluster is a shell over his deep deep uncertainty and insecurity. *pets him*

That's the only one I know of too and Zhao's lack of memory kinda ruins my joy.

Zuko has addiction displacement. (And Zuko doesn't become Firelord in this. Everybody has to do some fancy political maneuverings to find an heir who isn't either evil, crazy, unavailably the Avatar, or a war criminal.)