Fire Lord Ozai is a fictional character from the animated television series Avatar: The Last Airbender. He is the main antagonist of the series and the ruler of the Fire Nation. Ozai is known for his ruthless ambition and desire for power, seeking to conquer the other nations and establish dominance over the world. Ozai is characterized by his mastery of firebending, a powerful form of elemental manipulation. He is the father of Zuko and Azula, and his harsh treatment of them significantly impacts their character development throughout the series. His ultimate goal is to harness the power of the Sozin's Comet to achieve unparalleled strength.