Yakone



Yakone was a man who threatened Republic City forty-two years before Avatar Korra's arrival.

History
When Yakone threatened Republic City in 128 ASC, Avatar Aang successfully dealt with him head-on.

Forty-two years later, Councilman Tarrlok brought him up in an argument with Tenzin in order to persuade the United Republic Council to allow his task force to attack Amon head-on, just like Avatar Aang had done all those years ago against Yakone.