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Daniel Dae Kim has been cast as Fire Lord Ozai in Netflix’s live-action Avatar: The Last Airbender series

The news was announced officially today by Netflix, and through outlets such as Deadline and Vulture.

Daniel Dae Kim is a 53-year-old Korean-American actor best known for iconic live-action roles in Lost and Hawaii Five-O. He’s no stranger to the world of Avatar either! He previously voiced General Fong in the original animated Avatar: The Last Airbender series, and had a crucial role in The Legend of Korra as Asami Sato’s father Hiroshi Sato.

His official character introduction is as follows:

Fire Lord Ozai is the ruthlessly-driven leader of the Fire Nation. He demands everyone live up to his impossible standards, especially his teenaged son, Prince Zuko (Dallas Liu).

Ozai’s drive to conquer and unite the world under firebender rule is a family burden—he believes that it’s his destiny to finish a war started by his ancestors.

Notably, this is the first big name cast in the series, which makes sense since the castings so far were for the four main young characters, who would be more likely to be unknown actors. This is the first adult character revealed, and it sets a great tone for the rest of the cast to come.