Sokka
Sokka grew up in his village and trains the warriors of his village. Forced to mature quickly when his mother Kya was killed in a Fire Nation raid, he cultivated his warrior skills with a militant zeal, while his sister Katara did chores and practiced waterbending. When Sokka was thirteen, his father and the other village men left to help the Earth Kingdom to fight against the Fire Nation, leaving him and his sister to look after their tribe with their grandmother, Gran Gran. As the oldest male left in the South Pole, Sokka came to assume a semi-leadership role by the time he was sixteen, fiercely protecting the village from any possible outside threats while trying to train children to be a new generation of defenders.