Sangok

History
Pupil Sangok is an awkward teenager and one of Master Pakku's Waterbending students. He is not the best Waterbender in class because he's often caught daydreaming, wishing he was off playing ice marbles. Katara and Sangok are matched up for a practice duel. Judging by his expression at the start of the duel, Sangkok evidently fears Katara's ability. Katara easily defeats him in their battle.