The original "Avatar," which premiered in 2005, ran for three seasons on Nickelodeon. It takes place in a world divided into four nations — the Water Tribes, the Earth Kingdom, the Fire Nation, and the Air Nomads — where certain people have the ability to manipulate one of the four elements.
The show follows Aang, a young airbender who is also the Avatar, the single person with the ability to bend all four elements and a responsibility to restore balance to the world.
The live-action show follows the same plot, starring young actor Gordon Cormier as Aang and Kiawentiio and Ian Ousley as his travel companions, siblings Katara and Sokka. While there are some differences between the live-action and the cartoon, the show features plenty of easter eggs for the broader "Avatar" universe.
Here's what the cast of the live-action show looks like compared to their animated counterparts.
Gordon Cormier plays AangGordon Cormier plays Aang in "Avatar: The Last Airbender."
Frederic J. Brown/AFP via Getty Images; Robert Falconer/Netflix
Aang is the titular last airbender and the Avatar tasked with restoring balance to a war-stricken world.
Kiawentiio plays KataraKiawentiio plays Katara in "Avatar: The Last Airbender."
Frederic J. Brown/AFP via Getty Images; Robert Falconer/Netflix
Katara is the only waterbender left in the Southern Water Tribe and Aang's traveling companion.
Ian Ousley plays SokkaIan Ousley plays Sokka in "Avatar: The Last Airbender."
Frederic J. Brown/AFP via Getty Images; Robert Falconer/Netflix
Sokka is Katara's older brother and one of Aang's other traveling companions.
Dallas Liu plays ZukoDallas Liu plays Zuko in "Avatar: The Last Airbender."
Frederic J. Brown/AFP via Getty Images; Robert Falconer/Netflix
Zuko is the crown prince of the Fire Nation who's been tasked with capturing the Avatar.
Paul Sun-Hyung Lee plays IrohPaul Sun-hyung Lee as Iroh in "Avatar: The Last Airbender."
Steve Granitz/FilmMagic; Robert Falconer/Netflix
Iroh is Zuko's uncle and mentor, who accompanies him on his quest to capture Aang.
Daniel Dae Kim plays Fire Lord OzaiDaniel Dae Kim plays Fire Lord Ozai in "Avatar: The Last Airbender."
Presley Ann/Getty Images for Netflix; Robert Falconer/Netflix
Ozai is Zuko's father and the leader of the Fire Nation.
Ken Leung plays ZhaoKen Leung plays Admiral Zhao in "Avatar: The Last Airbender."
Steve Granitz/FilmMagic; Robert Falconer/Netflix
Zhao is one of Zuko's military rivals, who's also pursuing Aang's capture.
Elizabeth Yu plays AzulaElizabeth Yu plays Azula in "Avatar: The Last Airbender."
Steve Granitz/FilmMagic; Robert Falconer/Netflix
Azula is Zuko's ruthless younger sister and the princess of the Fire Nation.
Momona Tamada plays Ty LeeMomona Tamada plays Ty Lee in "Avatar: The Last Airbender."
Frederic J. Brown/AFP via Getty Images; Netflix
Ty Lee is a member of Azula's entourage and a skilled acrobat.
Thalia Tran plays MaiThalia Tran plays Mai in "Avatar: The Last Airbender."
Jerod Harris/Getty Images; Netflix
Mai is a knife-wielding member of Azula's entourage.
Maria Zhang plays SukiMaria Zhang plays Suki in "Avatar: The Last Airbender."
Kayla Oaddams/WireImage; Netflix
Suki is a warrior whose combat style and traditions are modeled after a previous Avatar, Kyoshi.
Amber Midthunder plays Princess YueAmber Midthunder plays Princess Yue in "Avatar: The Last Airbender."
Presley Ann/Getty Images for Netflix; Robert Falconer/Netflix
Yue is the princess of the Northern Water Tribe, and was blessed by the moon spirit at a young age.
Sebastian Amoruso plays JetSebastian Amoruso plays Jet in "Avatar: The Last Airbender."
Presley Ann/Getty Images for Netflix; Netflix
Jet is a young revolutionary who Aang, Katara, and Sokka meet in Omashu in the live-action series.
Danny Pudi plays the MechanistDanny Pudi plays the Mechanist in "Avatar: The Last Airbender."
Tibrina Hobson/Getty Images for SBIFF; Robert Falconer/Netflix
The Mechanist, also known as Sai, is an inventor in Omashu with a secret.
Utkarsh Ambudkar plays King BumiUtkarsh Ambudkar plays King Bumi in "Avatar: The Last Airbender."
Trae Patton//CBS via Getty Images; Robert Falconer/Netflix
The King of Omashu, Bumi is a ruler whose senile façade belies hidden strength.
Arden Cho plays JuneArden Cho plays June in "Avatar: The Last Airbender."
Presley Ann/Getty Images for Netflix; Robert Falconer/Netflix
June is a bounty hunter who uses her shirshu companion's sense of smell to track her prey.
Appa, Aang's iconic flying bison, also appears in the live-action series. Appa in both the animated and live-action "Avatar: The Last Airbender."