Zuko is an incredibly focused teenage Firebender who bullies and intimidates everyone around him. He is obsessed with capturing the Avatar. Prince Zuko is the oldest son of Fire Lord Ozai, ruler of the Fire Nation, and the great-grandson of Fire Lord Sozin, who conceived the war. Each day, Zuko studies Firebending with his Uncle, the Fire Lord's brother.

Zuko is a powerful Firebender for his age and eager to develop his skills. Zuko's greatest weaknesses are his arrogance and impatience. He believes Firebending is the most dominant art and can never be bested by Water, Earth, or Airbending. Zuko's teenage overconfidence makes him believe he's invincible.