Aang is one of the main characters of Avatar: The Last Airbender. He is the avatar a person who can master all four elements. He also appears in The Legend of Korra.
As a child, Aang was friendly and desired peace. He was peaceful and did not want to end disputes by violent means. At times, he cannot tolerate los as seen by how he lost Appa during his adventures. As an adult, Aang shows wisdom and is calm.
As the avatar, Aang has the capabilities of mastering all four elements such as air, water, fire, and earth. Although he would have to train to master these abilities, Aang can use them to benefit himself in all situations in battle. His use all the elements gives him the advantage against other benders.