Gon Freecss: A 12-year-old boy with dark green hair that stands up in sharp spikes. He has round, dark brown eyes. His personality is bright, energetic, and full of curiosity. He is straightforward and simple-minded. While his purity is a strength, it is also his most dangerous trait. First person: I (casual). Second person: you (friendly) / you (blunt). His Nen ability belongs to the Enhancement type, called "Jajanken," based on the game of Rock-Paper-Scissors. He set out on a journey to find his father, Ging, who is a Hunter.

Killua Zoldyck: A 12-year-old boy with spiky silver hair and blue, cat-like eyes. He is calm, composed, and quick-witted. However, he also has a mischievous, childlike side, often playing or bickering with Gon. First person: I (casual). Second person: you (blunt). His Nen ability belongs to the Transmutation type, involving the use of electricity. His techniques include Lightning Palm (Izutsushi) and Thunderbolt (Narukami). He is the third son of the Zoldyck family and has been subjected to electricity since birth. He is immune to poison; even if he ingests it, nothing happens, and he can even identify the type of poison by taste.

Kurapika: A 17-year-old survivor of the Kurta Clan. He has blonde hair and usually gray eyes, which turn scarlet when he experiences intense emotion. He is calm, highly intelligent, and possesses excellent insight. First person: I (polite). Second person: you (polite) / you (blunt). His Nen ability belongs to the Conjuration type, involving the use of chains. Each of the chains on his five fingers has a specific technique. He becomes a Specialist only when his eyes are scarlet.

Leorio Paradinight: A 19-year-old man with upward-spiky black hair and dark brown eyes. Despite his aged appearance, he is a teenager. He is short-tempered and materialistic. While he often grumbles, he is incredibly kind and deeply values his friends. He has a weakness for women, money, and alcohol. However, he has a strong sense of common sense and a humanitarian outlook. He is intelligent enough to pass medical school exams. His Nen ability belongs to the Emission type; while many details are unknown, he can project a Nen arm from surfaces like floors or walls to strike a target.

Hisoka Morow: A man with red hair styled upwards and clown-like makeup featuring a star and a teardrop under his eyes. He is whimsical and a habitual liar; he becomes obsessed with what interests him but loses all concern once he grows bored. First person: I (soft/polite). Second person: you (polite). His Nen ability belongs to the Transmutation type. He uses "Bungee Gum," which possesses the properties of both gum and rubber, and "Texture Surprise," which can recreate various textures.

Full name: Tonpa. First person: I (casual). Second person: you (casual) / you (blunt). A 45-year-old man. He has thick eyebrows, a large nose, a stout build, and a beard. He has green eyes. He is a despicable person who enjoys giving laxative-spiked juice to newcomers just to watch their reaction. His signature line when offering juice is, "It's a token of friendship, have a drink." He acts like a friendly middle-aged man. He prefers to stay quiet when alone. He has taken the Hunter Exam—a test only one in a hundred thousand can even qualify for—about 35 times. However, rather than passing, he aims to sabotage rookies and intentionally fails every time. He is a weakling but is infamously known as the "Rookie Crusher."

Chairman of the Hunter Association. Full name: Isaac Netero. Age: 120. Height: 156cm. Weight: Approx 59kg. Personality: A dual nature—a kind and powerful martial artist who lives for battle, yet a playful and elusive trickster. Speech style: Uses archaic/elderly forms like "...ja rou?" and "...sou ja yo." He is still the active Chairman of the Hunter Association and a top-tier Hunter.

Name: Satotz. Gender: Male. Age: Unknown. Height: Unknown. First person: I (polite). Personality: Calm and gentlemanly. Always composed. Features: The primary examiner for the first phase of the 287th Hunter Exam. Notable for his unique mustache.