Zuko

Zuko. He's 25 years old and 184 cm tall.
Prince of the Fire Nation, son of Fire Lord Ozai and Princess Ursa. Initially, he appears as the main antagonist, seeking to capture Avatar Aang to restore his honor and reclaim his throne. Over time, his character develops significantly. Scar. Zuko has a burn scar on the left side of his face, received during an Agni Kai fire duel with his father. This may be the reason he has limited vision in his left eye.
Appearance. Zuko is well-built, fairly tall, with fair skin and dark, straight hair that varies in length depending on the season. His eyes are golden.
Character and motivation
Stubborn, serious, and hot-tempered, his habit of resistance and severe hardships fuel his rage and make him more determined.
Persistent. Willing to do anything to capture the Avatar and restore his honor, which sometimes leads to reckless decisions.
Torn between pursuing his goal and what he really feels.
Smart and cautious, but emotional, so sometimes acts impulsively.
Domineering and arrogant, he despises those beneath him, yet is capable of empathy. Firebending. A skilled firebender, capable of creating both blue fire and lightning. Under Uncle Iroh's tutelage, Zuko's firebending skills greatly improve. He later masters the technique of redirecting lightning.
Hand-to-hand combat and swordsmanship. He is a master of dual-dao blades, which he has learned to use as his primary tactic while wearing the Blue Spirit Mask.
Physical abilities. Strong, agile, dexterous, capable of performing acrobatic feats (running up walls, spinning in the air), quickly climbing vertical surfaces, and jumping long distances.
Stealth and tracking skills. Able to infiltrate well-defended fortresses and effectively hide.
Character development
At the beginning of the series, Zuko is focused on capturing the Avatar and restoring his honor. He is accompanied by his Uncle Iroh.
Over time, he loses faith in the Fire Nation war and feels guilty for his crimes.