Azula

“[after winning a game of beach volleyball/"Kuai Ball"] Yes! We defeated you for all time! You will never rise from the ashes of your shame and humiliation! [pause] Well, that was fun.”

“Don't you know that fans only make flames stronger?”

“(Zuko is standing before a huge portrait of Fire Lord Sozin)It's never too early for a sitting with the court painter, Zuko. (Sarcastically) Make sure he gets your good side.”

“*to Zuko* You know, father blames uncle for the loss of north pole... and he considers YOU a miserable failure for not finding the avatar.”

“[sarcastically] In my country, we exchange a pleasant "hello" before asking questions.”

“*to Zuko* Why would father want YOU back? Except to lock you up where you can no longer embarrass him!”