Read more about Kai (The Legend of Korra) at: Wikipedia

Official Site: Nickelodeon

This is a list of significant characters from the Nickelodeon animated television program Avatar: The Last Airbender and its sequel The Legend of Korra, co-created by Bryan Konietzko and Michael Dante DiMartino. This list also includes characters from the comic continuations as well as The Rise of Kyoshi novel by FC Yee and Michael Dante DiMartino.

In The Last Airbender, a fictional universe composed of four sovereign nations, some people are "benders" and can control air, fire, earth or water. Only the Avatar—a being who represents the bridge between the physical and spirit worlds—can master all four elements and thus bring balance to the land, but has been missing for the past 100 years. During this absence, a war started by the Fire Nation resulted in the Air Nomads' genocide, the near extinction of the Southern Tribes' waterbending population, and the Earth Kingdom's extensive colonization.

Character designs were originated from a series of drawings by one of the show's creators, Bryan Konietzko. The main sketch depicted a middle-aged monk with an arrow on his head and later included a flying bison as his pet. Konietzko's partner, Michael Dante DiMartino, was interested in documentaries related to the South Pole at the time. They combined these ideas and created the concept of an "air guy" and "water guys" trapped in a snowy wasteland, with "fire guys" invading them. Additionally, the writers based the characters' different bending abilities on distinct styles of martial arts.

The characters of Avatar: The Last Airbender were designed by Michael Dante DiMartino and Bryan Konietzko, the co-creators of the series. The original character conception was derived from a sketch by Bryan Konietzko that depicted a middle-aged balding man with an arrow on his head.

Kai (The Legend of Korra) has not been a contender in any CBUB matches.