Daniel Dae Kim as…Fire Lord Ozai
One of the few actors on this list to have previously worked on an Avatar project is Daniel Dae Kim, who voiced the characters General Fong in The Last Airbender and Hiroshi Sato on the follow-up show The Legend of Korra. Kim has had a very successful acting career with starring roles in the TV shows like Lost and Hawaii Five-0, as well as more recent projects like Hellboy and the Divergent series.
Kim plays the series’ main villain Fire Lord Ozai, the father of Prince Zuko and Princess Azula. Ozai usurped the throne from his older brother Iroh years before the events of the series, and he uses his power to continue the violent and oppressive legacy started by his grandfather Sozin. Aang’s main goal in the series is to defeat Ozai before a comet that gives firebenders unbelievable power again passes by the planet, an occasion Ozai intends to use to finish the war and complete the Fire Nation’s conquest of the world.
Elizabeth Yu as…Princess Azula
Kim’s onscreen daughter Azula will be played by Elizabeth Yu, who has one acting credit currently on her resume: a small part in Ray Romano’s 2022 film Somewhere in Queens. Avatar: The Last Airbender will likely be Yu’s breakout role, but she is also slated to appear in May December alongside Natalie Portman and Julienne Moore and as the lead in Year One.
Yu will have her hands full with Azula, who is one of the primary villains on the show. In addition to perpetrating her father’s twisted idea of a new world order, Azula is constantly at odds with her brother Zuko, trying to capture Aang before he does just to one up him. She doesn’t do this alone, as she gathers her childhood friends to form a deadly trio.