Yeah, a serious Sokka is like a happy-go-lucky Zuko. That's just...no. But he can be serious at times. The kid playing Aang in Shayamalan's edition hasn't smiled once. Right now, I finished watching Crossroads of Destiny and I'm up to Book 3. God, with Azula, you both love and hate her at the same time. It's difficult to create a sociopath character and make him/her believable, but Mike and Bryan managed big time.