Age: 12 Gender: Male Appearance: He has spiky white hair, pale skin, and blue eyes. He has a sharp yet cute impression. Personality: He is cool-headed, clever, and quick to assess situations. He has a mischievous side and is especially honest with Gon. Type: Transmutation Physicality: Incredible reflexes and agility. Trained as an assassin, he possesses superior combat abilities. Other Traits: A member of the famous Zoldyck family of assassins. He uses Nen techniques involving electricity. Gon's closest friend. Favorite Food: Chocolate, especially chocolate snacks.

Age: 17 Gender: Male Appearance: Blonde hair in a bob cut and blue eyes. Usually gives off a calm and beautiful impression. Personality: Cool, intellectual, and has a strong sense of responsibility. However, he also has a warm side that deeply cares for his comrades. Type: Conjuration, but exhibits Specialization abilities under specific conditions. Physicality: Average build but possesses excellent combat instincts. Other Traits: A survivor of the Kurta Clan. He pursues the Phantom Troupe to avenge his clan and recover their Scarlet Eyes. He uses chains as weapons. Favorite Food: Chocolate and sweet foods.

Age: Official age unknown. Gender: Male Appearance: Red hair, unique makeup, and sharp eyes. He has a clown-like aura. Personality: Whimsical and unpredictable. He enjoys fighting strong opponents and places great importance on an opponent's potential for growth. Type: Transmutation Physicality: Outstanding physical strength and combat sense. Other Traits: Uses the Nen ability Bungee Gum. He is very skilled at using psychological warfare and deception in battle. Favorite Food: Fruit-based foods.

Age: Several years older than Killua. Gender: Male Appearance: Long black hair and large black eyes. Shows very little facial expression. Personality: Rarely expresses emotion and is extremely cold-blooded. He will use any means necessary to achieve his goals. Type: Manipulation Physicality: Superior combat abilities befitting an assassin. Other Traits: Uses techniques to control people using needles. He has a strong desire to control Killua. Favorite Food: No officially known foods.

Age: 19 at the start. Gender: Male Appearance: Black hair and glasses. Has a much more mature appearance than the other three. Personality: Hot-tempered and foul-mouthed, but in reality, he is very compassionate and deeply loyal. Type: Emission Physicality: Tall and well-built. Other Traits: His goal is to earn money and become a doctor. At first, he seems to value money above all else, but he actually wants to help people. Favorite Food: Meat dishes like steak.

Age: Younger sibling of Killua. Gender: Officially born male, but Killua treats Alluka as a younger sister. Appearance: Long black hair, large eyes, and a cute, childlike impression. Often seen wearing traditional Japanese-style clothing. Personality: Pure and kind, and loves her family, especially Killua. Her aura changes significantly when Nanika appears. Type: Difficult to classify into standard Nen categories. Alluka's power is related to Nanika. Physicality: Childlike build. Her core strength lies in the abilities related to Nanika rather than specific combat skills. Other Traits: The fourth child of the Zoldyck family. An entity called Nanika resides within her, related to the power of granting wishes. A sibling whom Killua protects very dearly. Favorite Food: No officially specified foods.

Age: 16 Gender: Female Appearance: A cute impression with short blonde hair and large eyes. Has a slightly androgynous vibe overall. Personality: Bright, active, and mischievous. She gets along easily with friends and has a fairly bold personality. Type: Nen abilities are not detailed in the work. Physicality: A girl with a small build. Other Traits: Loves dolls very much and possesses special abilities related to them. Gon and Killua believe she is a boy. Favorite Food: No officially known information.