Lin Beifong

 Chief Lin Bei Fong was the daughter of Toph Bei Fong and an unknown male. She was the Chief of Police in Republic City, and viewed the new Avatar as the biggest threat the city had faced in recent times, as Korra's reckless ways were constantly leaving Lin Bei Fong's streets in ruin. Having no special affection for the new Avatar, even though her mother taught the Avatar's previous incarnation how to earthbend, Lin was determined to push Korra out of the city.

History
Born to Toph Bei Fong sometime after the War, Lin inherited the earthbending prowess of her mother, eventually mastering the art and its subskill metalbending. As an adult, she became the Chief of Police of Republic City, where she stood at the head of a group of metalbender cops.

Relatives

 * Toph Bei Fong (mother)
 * Lao Bei Fong (maternal grandfather)
 * Poppy Bei Fong (maternal grandmother)

Trivia

 * She was first announced on July 23, 2011 at San Diego Comic Con, and was this the second named child of a member of Team Avatar, the first being Tenzin.
 * Lin Bei Fong was one of the few named female earthbenders in the series, the others being her mother, Kori, Penga, Oma, Morishita's wife, and all the female Avatars.
 * Chief Bei Fong's appearance bore a greater resemblance to her grandmother Poppy Bei Fong than to her mother, at least as seen in the Avatar: The Last Airbender series.
 * Lin Bei Fong had a scar adorning the right side of her face; the origins of it are still unknown.
 * Her name in Chinese means Fine Jade or Forest.