Voiced by Janet Varney
Korra is the new Avatar, born in the southern water tribe, she learned how to control water, fire and earth at a very young age and as the show starts she is going to Republic City to learn from Tenzin about how to control air. She's brash and doesn't really like to think things through preferring to just hit it with brute force. She is rarely seen without her faithful polar bear dog Naga
Voiced by J.K. Simmons
Avatar Aang's youngest son, he teaches the art of Airbending. Always trying to remain calm, his patience is constantly tested by not only Avatar Korra but by his children, all of which are Airbenders.
Voiced by P.J. Byrne
An Earthbender who grew up on the streets of Republic City with his older brother Mako. Despite his hard life growing up he always has a grin on his face and a lady on his arm. He also founded his own pro bending team "The Fire Ferrets" named after his pet
Voiced by David Faustino
Mako is the older brother of Bolin, more hardened by life on the street then his brother, he is willing to do anything to get them a better life, joining in the pro bending tournaments for the prize money.
Chief Lin Bei Fong
Voiced by Mindy Sterling
Daughter of Toph Bei Fong, Lin has risen through the ranks of the Republic City Police to become the chief. Even though she and Korra are on the same side she views Korra as Republic City's biggest threat and seeks to push her out.
Voiced by Steve Blum
Not much is know about Amon other the fact that he hates benders, seeking to wipe them out with the help of his group, the Equalists.