|"My name is Katara. And I'm the only waterbender left in the Southern Water Tribe."|
— Katara to Zuko in The Last Airbender.
|Nationality||Southern Water Tribe|
|Played by||Nicola Peltz|
Katara is a fifteen-year-old waterbender from the Southern Water Tribe. She and her older brother Sokka found an airbender named Aang who later is revealed to be the Avatar who has disappeared for almost 100 years. They accompany him on his journey to the Northern Water Tribe to find a Waterbending master.
- Katara's name could be derived from catarata, which is both Portuguese and Spanish for "waterfall". It is also the name of an Indian punching sword. The Greek word "Καταρα" is pronounced similarly and means "curse".
- Katara is the first person to bend in the film.
- Katara is the first to be heard in the movie as she narrates the prologue. She also narrates near the opening of each act in the movie: Act I, Act II(a), Act II(b) and Act III.
- Shyamalan's daughters (then fourteen and eleven-year-olds Saleka and Ishana) were very devoted to Avatar: The Last Airbender and especially to Katara. Nicola Peltz said, "They are my best friends. I have sleepovers with them. They did teach me a lot about Katara. They helped me. They're amazing kids. When we started shooting they would come to set a lot and I got close with them."
- Her hair is lightly braided with most of her hair down, compared to her animated counterpart. Hair stylist Ivana Primorac attempted to recreate the hair loopies but it "did not work at all angles" and was obstructing Nicola's vision, so the loopies we pulled towards the back.
- Katara's waterbending in the film develops much more slowly and is significantly slower and weaker than her waterbending in the animated series.