is a 12 year old fun-loving protagonist of the series who had been frozen in ice with his flying bison, Appa , for about 100 years. (so that really makes him 112 years old :S) He is freed by a young Waterbender named Katara who later becomes his love interest. He is the current incarnation of the Avatar, the spirit of the planet manifested in human form. Aang is a reluctant hero trying to return balance to the world. Aang also sports arrow tattoos on his forehead, which signify his mastery of airbending.