Toph Beifong (北方拓芙; Běifāng Tuòfú) (voiced by Jessie Flower in Books Two and Three of the original series, voiced by Kate Higgins in flashbacks of Books One and Three from the sequel series, and by Philece Sampler in Book Four of the sequel series) is a blind Earthbending grandmaster of the prestigious Beifong family in the Earth Kingdom. In the original series, Toph helps Aang master Earthbending. Toph is often sarcastic, direct, and confrontational; commonly depicted as the choleric and tomboy of the group. Though blind, Toph can feel vibrations in the earth. Through this heightened sense, she can identify people's locations, their distance from her, and their physical build. She learned this technique from the blind Badger Moles. This 'seismic sense' provides her with a distinct advantage when facing other Earthbenders in combat, as they require contact with the ground and extract rocks from their surroundings. As another result of her blindness, Toph has acute hearing, enabling her to recognize people by the sound of their voices and to eavesdrop on distant conversations. Unlike other Earthbenders, Toph has a distinct style of earthbending not based on Hung Gar but on the Southern Praying Mantis, featuring quick generation of energy and low kicks, to suit her small stature. Toph taught herself metalbending by manipulating the metals' impurities at the end of Book Two and throughout Book Three. In the sequel series, flashbacks reveal that Toph was the first Chief of the Metalbending Police Force, the police department of Republic City. Toph eventually became a single mother of two daughters: Lin, who eventually succeeded her mother as police chief, and Suyin, who founded a commune of free-thinking Earth and metalbenders known as Zaofu. By the time the series begins, having once lived with Suyin's family in Zaofu, Toph took residence in the Foggy Swamp where she assists Korra.