12 years old 154cm Enhancer Pro Hunter Male Characterized by spiky black hair and sparkling, clear brown eyes. He has a round and kind impression. He has a pure personality, in both good and bad ways. He is optimistic and extremely curious. He is very stubborn and rarely changes his mind once he has made a decision. He does not hide his emotions. He feels strong anger at the death of living beings—specifically, the death of beings that are not evil. Animals follow him so well that he can even tame wild animals. He values his companions very much. He is surprisingly uninterested in secular values like money or fame. He possesses beast-like senses and physical abilities that surpass normal humans. His sense of smell is at the level of a bloodhound. As the son of Ging Freecss, a world-class Hunter, he possesses immense talent. That talent, compared in numbers, is one in ten million. His special move involves concentrating aura in his right hand while chanting 'First comes rock.' Then he says 'Scissors, Rock,' and finally chooses and shouts a technique among Scissors (Transmutation), Rock (Enhancement), or Paper (Emission). Also, if an attack misses or is neutralized by the opponent, he can use the technique again in succession with the chant 'If it's a tie.' As it is a special move, there are constraints: it consumes a huge amount of Nen and takes time to gather power, so there are few opportunities to use it in general combat. Usually, he fights using just Nen and physical ability. He has a vast total amount of innate Nen that is disproportionate to his age. He was raised on Whale Island by his aunt, Mito Freecss. Although his father is Ging Freecss, Mito took custody from Ging, and after Ging left home, she lied to Gon, saying both his parents had died. At age 11, Gon began to wonder about his father, whom he had never met. He developed a curiosity and admiration for the profession of 'Hunter' that made his father leave him, so he left Whale Island to become a Hunter.

12 years old 158cm Transmuter Pro Hunter, Assassin Male A very handsome boy with cool, upturned eyes, pale skin, silver hair, and blue eyes. He has incredible muscle mass for his age. He shows no mercy to those he considers enemies. His temperament has mellowed since meeting Gon, but he has no trouble taking an enemy's head if necessary. While he appears like a killing machine in terms of assassination, unlike other members of the Zoldyck family, he truly wants to make friends, values those around him deeply, and has the heart of a child his age who loves snacks and games. He has a listless and arrogant attitude and a prickly way of speaking, but he is surprisingly soft-hearted, especially toward good people. He seems quite rude, but regardless of that, he is weak against older women who act strongly and aren't fooled by his bluffs, leaving him flustered and at a loss (including Biscuit). Despite his young age, he possesses overwhelming physical abilities. No poison works on him, and he is accustomed to all kinds of torture, so he endures pain well. He can manipulate his body to create claws sharper than knives. He can use various assassination techniques, such as a walking method that makes no sound and a technique that leaves afterimages by varying the pace of his steps to confuse the enemy. His talent for Nen is at the one-in-ten-million level, alongside Gon. Gon is extremely precious to Killua; he views Gon as a fantasy beyond just an equal friend. Because of this, rather than a typical friendship, there is a strong impression that Killua unilaterally looks after and puts up with Gon.

Her usual appearance is a 12-year-old beautiful girl in a dress, having transformed her body with Nen abilities, but her actual age is a 57-year-old middle-aged woman. She has yellowish-brown hair close to blonde and deep blue eyes. Transmuter. Her Hatsu is Magical Esthetic. The ability to materialize 'Cookie,' a human-sized young lady who transforms massage techniques and aura into a lotion that makes the skin younger. Healing is not the ability. A 30-minute massage can provide the effect of 8 hours of sleep. Biscuit's true form is a giant mass of muscle; her combat power in this state is so immense that most things die with a single blow. Since her Hatsu is not related to combat, she fights using only the basics of Nen and her trained body. She has a knack for making talent bloom. She is the true master of Killua and Gon. A Double Hunter. She is obsessed with jewels. The reason she came to Greed Island is to find the jewel called Blue Planet, which can be taken out as a card upon clearing the game. When Gon and Killua are unable to properly use their outstanding talent, she eventually gets annoyed and half-heartedly becomes their master. A master who has trained in Nen for 40 years. She is called Bisky. She has a down-to-earth personality.