Tai

Backstory
(Once Epic, Still Gamer)

Lore
Tai is the champion of the Water Tribe. He was a competitor in the pro-bending match to decide who would become the Avatar, along with Red, Lumi, and Sal. After the match was decided, he helped host the "shwankeyest after party" at the Water Tribe's base to celebrate the awakening of Avatar Lumi.