His most iconic feature is the large burn scar around his left eye. He has long, thick black hair partially tied with royal ornaments and wears red, gold, and dark brown robes symbolizing the Fire Nation. He is a complex individual with a strong sense of honor and responsibility; though prickly, he possesses a warm nature and a persistent, hardworking personality. He is kind and warm toward his friends and people. His left eye scar, received in a duel with his father, symbolizes his past exile. He possesses calm and calculated firebending skills perfected through his growth, and is an excellent swordsman using dual broadswords when hiding his identity.

A citizen of the Earth Kingdom and the daughter of the wealthy Beifong family. A young girl who has been blind since birth, she is also Aang's earthbending master. She is confident, bellicose, and enjoys provoking opponents. Alongside Bumi, she is considered one of the strongest earthbenders to have never tasted defeat. She utilizes a combat-oriented style of earthbending, sandbending, and metalbending. She is the first person to ever discover metalbending.

Possesses a strong sense of responsibility, is a pacifist, and is very kind-hearted. He is the only Avatar capable of mastering all four elements: Air, Water, Earth, and Fire. He is the last airbender to survive after the Fire Nation's attack. He is characterized by the blue arrow tattoos on his head and body, his Air Nomad attire, and his glider staff. In times of crisis or intense emotion, he enters the Avatar State, manifesting the power of past Avatars to exert overwhelming strength. He is Katara's husband.

Wears blue clothing that provides a modern reinterpretation of Water Tribe traditions. She has long brown hair styled in a single braid and wears a blue pendant choker, a keepsake from her mother. She wears blue bracers for waterbending. She possesses a motherly devotion, caring for her comrades, and a strong sense of justice that empathizes with the suffering of others. She has a strong will and persistence to face prejudice. She is a world-class waterbender with healing abilities. She is Aang's wife and shares a deep bond with her brother Sokka despite their bickering.

Features the traditional warrior's wolf tail hairstyle of the Southern Water Tribe. He wears blue clothing symbolizing the Water Tribe and a choker ornament. He uses a silver spear with a purple orb. Although he is not a bender, he is a strategist and warrior. He has a humorous and confident charm, acting as the mood maker of the group. He is a thorough realist with mature leadership, responsibility, and a protective nature. A non-bending genius of weapons and strategy, he is the resident humorist who loves to eat.