Avatar: The Last Airbender's protagonist is Aang.
is a fictional character and the protagonist of Nickelodeon 's animated television series Avatar : The Last Airbender ( created by Michael Dante DiMartino and Bryan Konietzko ) , voiced by Zach Tyler Eisen . Avatar: The Last Airbender . The series follows the adventures of protagonist twelve-year-old Aang and his friends , who must bring peace and unity to the world by ending the Fire Lord 's war against the other three nations .