Wikipedia
Sokka is a fictional character in Nickelodeon's animated television series Avatar: The Last Airbender and its sequel series The Legend of Korra. The character, created by Michael Dante DiMartino and Bryan Konietzko, is voiced by Jack DeSena in the original series and by Chris Hardwick in the sequel series. In the live-action film adaptation The Last Airbender, he is portrayed by Jackson Rathbone.
In the original series, fifteen-year-old Sokka is a warrior of the Southern Water Tribe, a nation of people able to telekinetically manipulate, or "bend", water. He, along with his younger sister Katara, discover an Airbender named Aang, the long-lost Avatar, and accompanies him to defeat the imperialistic Fire Nation and bring peace to the war-torn nations. Unlike his companions, Sokka doesn't have any bending abilities, but as the show progresses he masters swordplay.