Katara (Mae Whitman) is a 14-year-old Waterbender of the Southern Water Tribe. Katara and her brother, Sokka, discover and free Aang from a block of ice in which he had been frozen for 100 years. With her brother Sokka, she accompanies Aang on his quest to defeat the Fire Lord Ozai and, eventually, becomes his Waterbending teacher. Katara is also one of the only Waterbenders that have the ability to Bloodbend, which allows her to control any person by bending the water inside the blood; although she is reluctant to use the ability. In the original un-aired pilot episode, Katara's name was Kaya; this later is stated to be her mother's name.