In the 'Avatar The Last Airbender Avatar Kyoshi Novel', Kyoshi is the central character. She is the one with the Avatar powers and the one on a journey of growth. Then there's Yun. He is a character who has his own story arc that intersects with Kyoshi's in interesting ways. And Hei - Ran, an important figure in Kyoshi's life, who imparts wisdom and training to her.
There are several important characters. Aang is the central figure. He's the one who has to bring balance. Katara is crucial as she's not only a waterbender but also a great friend and support to Aang. Sokka may not be a bender, but his intelligence and skills are valuable. Prince Zuko has a complex character arc. He starts as an antagonist trying to capture Aang for his own redemption in the eyes of his father, but later he changes. Also, Toph, the earthbender, is an important addition later in the story as she helps Aang with his earthbending training.
Zuko is extremely popular as well. His complex character arc, from being a villain - like figure to a hero, is very engaging. People love to see his transformation and how he overcomes his inner demons and the expectations of his family and nation.
Katara is another important character. She is a waterbender from the Southern Water Tribe. She is brave and often serves as a moral compass for the group. She also helps Aang in his waterbending training.
Common themes often include friendship and how it can transform into something more. Also, the idea of breaking traditional boundaries. In these fanfics, Aang may be facing challenges that come with being in a relationship that goes against the norm in his world. And there's often a focus on the emotional journey, like how he deals with his new - found feelings and the reactions of others.
Avatar The Last Airbender is typically classified as a cartoon. It has distinct elements such as its animation style, story themes, and the way it's produced that set it apart from traditional anime.