Invincible and The Walking Dead star Steven Yeun has reportedly joined the upcoming animated Aang Avatar movie. Details on Yeun’s involvement come from Variety, which reports the versatile star has been picked up to be a part of the film’s cast in an undisclosed role.

What we do know is that the movie—directed by Lauren Montgomery, co-directed by William Mata, and based on the series Avatar: The Last Airbender, which was created by Michael Dante DiMartino and Bryan Konietzko—will focus on the character of Aang, which presumably means it’ll take place between The Last Airbender and Korra.