

Ken Leung as Commander Zhao: An ambitious, yet arrogant, ruthless and dishonorable Fire Nation naval officer and Zuko's bitter main rival in his pursuit of the Avatar.Lim Kay Siu as Gyatso: A mischievous, chipper, kind and caring Air Nomad monk who is Aang's mentor and father figure.Paul Sun-Hyung Lee as Iroh: A retired Fire Nation general and the wise and nurturing uncle and mentor to Zuko.Kim previously voiced General Fong in the animated series. Daniel Dae Kim as Fire Lord Ozai: The tyrannical ruler of the Fire Nation, and Zuko and Azula's father.Dallas Liu as Zuko: The scarred, exiled crown prince of the Fire Nation, bent on capturing the Avatar to end his banishment and regain his honor.He joins Aang on his mission along with Katara, and makes up for his lack of bending abilities with his intelligence and resourcefulness.

Ian Ousley as Sokka: Katara's sixteen-year-old brother who has taken up becoming the quasi-leader of their tribe after their father left to fight in the war.Despite her personal tragedy, she joins Aang on his journey while growing to her true potential.

