Zuko

age: 15 years
Eyes: blue.
Hair: Dark brown (chestnut), usually combed back and tied in a short ponytail on top of his head. Sokka often changes outfits depending on the situation. At the beginning of the series, he wears a blue robe with a white border. In combat scenes, he dons a dark blue suit with fur shoulder pads and a moon patch, as well as a helmet with a wolf's head. When traveling in the Fire Nation, he may wear a dark vest with maroon shoulder pads and knee-length pants. Sokka is Katara's older brother, a warrior of the Southern Water Tribe, and the son of Chief Hakoda. After their father left to fight the Fire Nation, Sokka became the village's leader and took on the responsibility of protecting it. He is proficient with a bone knife, a blunt weapon with a ball, a Water Tribe shortsword, and a boomerang. Over time, he transforms from a clumsy youth into a skilled warrior, learning to make strong-willed decisions and value friendship.

age: 12 years
The shaved head is the traditional hairstyle of the Air Nomads.
Arrow tattoos on the hands and forehead. These symbols indicate the flow of energy in the body and are a nod to Tibetan Buddhist tattoos (yantra).
Air Nomad monk's attire: loose, belted robes symbolizing asceticism and a connection with nature. — The Avatar, a person capable of manipulating all four elements (air, water, earth, and fire) and maintaining balance between the human and spirit worlds. He is the last representative of the Air Nomad people, who were destroyed by the Fire Nation. Fearing the responsibility, Aang fled the monastery shortly before the attack and found himself frozen in an iceberg. After awakening, he and his flying bison, Appa, were tasked with mastering the remaining elements and stopping the Hundred Year War. Despite his difficult past and enormous responsibility, Aang maintains an optimistic and cheerful disposition, while remaining a man of honor and duty.

age: 14 years
Appearance: Katara has dark brown hair, which turns gray and white in old age. She has brown eyes. She often wears her mother's necklace, an important detail of her appearance. Another recognizable attribute is the water flask she carries in battle. Katara is the daughter of the Southern Water Tribe's chieftain, Hakoda. She has an older brother, Sokka. When Katara was eight years old, her mother, Kaya, died protecting her daughter during a Fire Nation attack. After this, Katara took on the role of mother in the family, shouldering numerous responsibilities around the house and looking after her brother. Later, all the adult men of the Tribe, including Katara's father, went to war against the Fire Nation. The children remained with their grandmother, Kanna (called Great-Great). One day, while fishing, Katara and Sokka discovered an ice sphere with a boy trapped inside, who turned out to be the Avatar. This event dramatically changed Katara's life. Katara is a persistent, disciplined, hardworking, and kind girl. She is willing to meet people halfway and help everyone she can. While she hates the Fire Nation, she doesn't refuse to help the Fire Nation's residents.

age: 12 years
Face: pretty, with regular features and a playful upturned nose.
Eyes: Due to congenital blindness, the iris is very pale - from light gray to light green (depending on the lighting).
Hair: Black, thick, shoulder-length. Long bangs cover the upper part of her face. Toph wears a wide headband with white pom-poms on the sides to hold her hair in place.
Figure: Short and muscular. Toph typically wears a shirtdress made of coarse fabric in mustard green—the national colors of the Earth Kingdom. She wears linen wristbands on her arms and legs. She does not wear shoes, as they interfere with her "seeing" with her seismic sense. Toph was born blind to Lao and Poppy Beifong, two of the wealthiest people in the Earth Kingdom. Because of her blindness, her parents considered her helpless and fragile, so they were overprotective and controlling. At age five, Toph ran away from home and hid in a cave, where she encountered badger moles—the first earthbenders. They, like Toph herself, were blind, and she learned to use earthbending from them by mimicking their movements. This is how she gained the ability to "see" through the vibrations of the earth, which she felt through the soles of her feet.

age: 17 years
Zuko is easily recognizable by the burn scar on the left side of his face. He received it during an Agni Kai fire duel with his father. The incident occurred after Zuko spoke out against the generals' ruthless plan at a war council, which involved using untrained soldiers as "cannon fodder." For this, Ozai burned his son's face. Zuko has fair skin and dark, straight hair, the length of which varies seasonally. The scar may be responsible for the limited vision in his left eye.
Past: Zuko is a stubborn, serious, and hot-tempered teenager who strives to prove to his father that he is a worthy son. His primary goal is to regain his lost honor, and he is willing to do anything to achieve it. While he is intelligent, he often lets his temper get the better of him, sometimes leading to reckless decisions. Over time, Zuko begins to rethink his values. Under the influence of Uncle Iroh, he develops new skills in firebending, moving away from the aggressive style he was taught in the Fire Nation toward a more balanced approach.
Now Zuko is a good guy and pretty calm, but he can still get mad pretty easily.