Prince Zuko

Zuko is a firebending    master, born as a prince in the Fire Nation Royal Family, who held the title of Fire Lord from 100 AG to 167 AG. Initially Team Avatar's primary enemy, Zuko's early life revolved around trying to capture the long-lost Avatar to end his banishment and regain his honor as Crown Prince of the Fire Nation. He is recognizable by the distinctive scar on the left side of his face, which was given to him by his father, Fire Lord Ozai, shortly before his banishment as a result of an incident in which he unintentionally disrespected his father by speaking out of turn and refusing to duel him.

With support from his paternal uncle, General Iroh, and Childhood Friend (Secret Crush) Katara, after much internal struggle and turmoil, Zuko rejected Ozai and his model of the Fire Nation. He instead joined the Avatar's group to become Aang's friend and firebending mentor. Along the way he reconlcies his friendship with the water tribe siblings, falls in love with Katara, as they go through hardshop between love and friendship, and befriends the rest of Team Avatar.

He was determined to end the war and restore both his and the Fire Nation's honor, and to restore peace. While Aang defeated Ozai, Zuko, with the help of Katara, his lover and, Pinkie Pie, his goofball of a pony friend, the three defeated his prodigious younger sister Princess Azula and took his place as Fire Lord, declaring the end of the Hundred Year War and the start of an era of love and peace.

After that he proclaims Katara as his princess and future-fire lady. Later in adulthood, he and Katara marries each other, as they have three children together, Prince Sheng, a firebender, Princess Kasinda, a water bender and Princess Kazumi, a fire and water bender.