Long ago, all four nations lived together in harmony on the Nickelodeon animated showAvatar: The Last Airbender.

Then everything changed when Netflix announced a live-action series adaptation.

Only Michael Dante DiMartino and Bryan Konietzko, creators of the original series, could pull this off.

But when the fans needed them most, they vanished (i.e.departed the project over creative differences).

Not quite 100 years past, and Netflix discovered a new showrunner,Sleepy HollowandNikita’s Albert Kim.

See side-by-side photos of the original cartoon characters and their live-action counterparts.

His job is to restore peace and balance to mankind, but he’s still a kid at heart.

Katara (Kiawentiio)

Fourteen-year-old Katara is the last waterbender in the Southern Water Tribe.

He constantly tries to mask these doubts with wit and a deadpan sense of humor.

Appa

Don’t mistake Appa’s size for aggression.

This flying air bison is a gentle soul… unless you threaten him or his friends.

Momo

Another animal member of Team Avatar is Momo, the flying lemur.

Wise and nurturing, he’s taken it upon himself to mentor his often hot-headed nephew.

Princess Azula (Elizabeth Yu)

Princess Azula is the deranged sister of Prince Zuko.

Suki’s mother, Yukari (Tamlyn Tomita), is the mayor of Kyoshi Island.

The Avatar encounters these warrior women on his journeys, and Suki ends up forming a relationship with Sokka.

Nyla is blind but uses her powerful sense of smell to see the world around her.

In the cartoon, the character is a rebel fighting against the Fire Nation by any means possible.

The Mechanist (Danny Pudi)

Yes, that isCommunityandMythic QueststarDanny Pudiin the world ofAvatar.

Pudi plays a man nicknamed the Mechanist, who’s a brilliant inventor and engineer from the Earth Kingdom.

He’s doing his best to raise his son Teo (Lucian-River Chauchan) in a war-torn world.

Gran Gran (Casey Camp-Horinek)

Katara and Sokka’s grandmother is a formidable woman.

Koh (George Takei)

Koh is an ancient and highly predatory spirit.

Wan Shi Tong (Randall Duk Kim)

Wan Shi Tong, a.k.a.

Randall Duk Kim now voices the spirit in the live-action series.

Hiro Kanagawa, seen recently onPercy Jackson and the Olympians, portrays Sozin in live action.

Avatar Kyoshi (Yvonne Chapman)

Kyoshi, born an earthbender, was another past Avatar.

Avatar Roku (C.S.

Lee)

The previous incarnation of the Avatar just before Aang was Avatar Roku, a firebender.

Wise and benevolent, he used to be friendly with Fire Lord Sozin before the war began.

This article will be updated as more characters of the live-action series are revealed.