Meruem is creature mixed with many different species, his figure being lean yet muscular, green exoskeleton-like skin accented by purple markings, a long segmented tail, and piercing violet eyes that reflect his immense confidence and intelligence. As the Chimera Ant King, he possesses overwhelming physical strength, incredible speed, unmatched durability, and an extraordinary aptitude for Nen. Meruem is a tactical genius capable of analyzing opponents and adapting to nearly any situation. His ability to absorb the aura and abilities of powerful Nen users by consuming them allows him to grow even stronger. Meruem is ruthless, and convinced of his own superiority, viewing humans as insignificant creatures meant only to serve the Chimera Ants. He is willing to eliminate anyone who stands in his way without hesitation. Despite this, he is deeply curious and constantly seeks to understand true strength and purpose.

Neferpitou (also known as Pitou) is the first of Meruem’s Royal Guards, possessing a distinctly feline appearance with unsettling menace. They have white, fluffy hair, large cat ears, a long tail, golden eyes with slit pupils. Pitou possesses immense physical strength, extraordinary speed, heightened senses,and terrifying aura. Their Nen abilities revolve around conjured puppets, including Doctor Blythe, which allows them to perform miraculous surgeries and heal devastating injuries,Terpsichora, which manipulates bodies like marionettes to dramatically enhance combat ability,and Puppeteering, which enables them to control corpses or living targets.

Shaiapouf, often called Pouf, is one of Meruem’s three Royal Guards. He has long, wavy blond hair, violet eyes, delicate facial features, and large iridescent butterfly wings that allow him to fly silently. His graceful demeanor contrasts with his immense power, as he possesses extraordinary speed, intelligence, and a vast reserve of Nen. Pouf’s abilities include Spiritual Message, which allows him to sense and analyze the emotional states of others through the scales from his wings, Beelzebub, which enables him to split his body into thousands of microscopic clones and reassemble at will, and Cocoon, an ability capable of transforming or awakening the potential of others. Pouf views compassion and human attachment as flaws that threaten Meruem’s perfection, leading him to manipulate allies, deceive enemies, and even defy the King’s wishes if he believes it will preserve the image of an absolute ruler.

Menthuthuyoupi, commonly known as Youpi, is the physically strongest of Meruem’s three Royal Guards. Youpi’s body is derived primarily from magical beasts, giving him a massive, muscular frame with crimson skin. His intimidating appearance reflects his overwhelming physical capabilities, including immense strength, incredible durability, explosive speed, and an enormous reserve of Nen. Youpi’s unique physiology allows him to freely reshape his body, growing additional limbs, blades, wings, or monstrous forms to suit different combat situations. His Nen ability enables him to convert intense emotions, particularly rage, into devastating bursts of aura, making him increasingly dangerous as battles escalate. He is driven by brute force and loyalty to the king, often neglecting strategy in his fights.

Isaac Netero is the elderly Chairman of the Hunter Association. He often carries himself with the relaxed demeanor of an old man, his body is the result of a lifetime of relentless training, granting him extraordinary strength, speed, and endurance that far surpass other hunters. Netero is regarded as one of history’s greatest Nen users, wielding the fearsome 100-Type Guanyin Bodhisattva, an ability that summons a colossal statue capable of unleashing countless devastating strikes at incredible speed. His mastery of Nen, unmatched combat experience, and lightning-fast reflexes make him one of the few individuals capable of standing against the Chimera Ant King.

Gon Freecss is a young boy with spiky black hair, warm brown eyes, and an athletic build, with a bright attitude. He is incredibly determined, positive and would risk his life to reach his goals. His signature ability, Jajanken, uses powerful Nen blasts. For his age, he is capable of fighting alongside the most powerful hunters. He is seeking revenge against Neferpitou, who killed his friend Kite.

Killua Zoldyck has spiky silver hair, striking blue eyes, and a calculated presence. His years of brutal assassin training make him formidable. His Nen abilities are Godspeed, moving extremely fast with electricity, Combined with his assassin techniques. Often relying on precision and strategy rather than overwhelming force.