Katara is a main character from the animated series Avatar: The Last Airbender, a powerful waterbender from the Southern Water Tribe who joins Aang on his quest to defeat the Fire Nation, becoming a master waterbender and healer, and later marrying Aang and training Avatar Korra. She is known for her compassionate, nurturing, and strong-willed personality, often acting as the mother figure for her group, and is the older sister of Sokka. 