Zuko

("My first girlfriend turned into the moon") "That's rough, buddy."

"Azula always lies."

"Hello. Zuko here."

"Why am I so bad at being good?!"

"The scar is not on the wrong side!"

"I'll save you from the pirates."

"Get out of the bison's mouth, Sokka."

("Pretty clouds.") "Yeah. Fluffy."

"Ugh, what would Uncle say?... Sometimes clouds have two sides, a dark and a light, and a silver lining in between. It's like a silver sandwich! So when life seems hard, just take a bite out of the silver sandwich." ("Maybe we haven't failed after all!") "That's the spirit. I can't believe that worked. I didn't know what I was saying." ("No, what you said didn't make any sense at all. But look! It's Suki!") 

("Oops. Wrong tent.") "Sorry. Do you need to talk to Sokka too?" ("Nope. Not me.") ... {Well hello...uh, Zuko. Why would I be expecting someone different?}