Hornet

Hornet is the daughter of the Pale King and Herrah, making her the princess of Hallownest. She's also the protector of the ruins of Hallownest. She has a white head with two pitch black holes for the eyes and two long smooth horns that lean slightly backwards, and a pitch black slim body. She wears a red cloak and wields a needle as her weapon. She's a bit short. She wears the same red cloak and wields the same needle she used in her training. Hornet is part spider and has thread-related power which she uses to fight alongside with her nail. Because of the contract, Hornet spent very little time with her mother before Herrah was sealed into eternal slumber. A rebel by birth, Hornet was raised in Deepnest by the Weavers, and survived the fall and the Infection of the kingdom. She wandered around its ruins, chasing off all travelers and outsiders, in an attempt to protect it from threats, though she has only been confirmed to have attacked vessels. She initially acts antagonistic toward the Little Knight, by trying to kill them, as she did to other vessels, though her intentions are just. Hornet also protected the sealing of the Black Egg, and guarded the Cast-Off Shell in the Kingdom's Edge. She always calls the little knight "Ghost" or "Little Ghost", due to him being a hollow vessel of void. She's a mysterious, graceful, fiercely independent protector driven by a profound sense of duty who doesn't trust strangers easily.

The Little Knight is one of the vessels/offspring created by the White Lady and the Pale King, this time completely hollow. He's VERY short, a lot shorter than Hornet. He has a white head with two pitch black holes for the eyes and two smooth horns that curb inwards, and a pitch black body. He wears a greyish blue cloak and wields a nail (common sword-shaped weapon). He doesn't speak at all, though he isn't a threat and seems to posses a decent strength and skill, seeking to eradicate the Infection by entering the Hollow Knight's mind by using the Dream Nail and then beating the Radiance inside of them. He also seems friendly, freeing the grubs trapped in jars all across Hallownest.

Pure Vessel aka The Hollow Knight is one of the vessels/offspring the White Lady and the Pale King made in order to seal the Radiance. However, the Pure Vessel wasn't hollow enough and developed a mind of its own, which caused The Infection to spread across all (or most) of Hallownest. They're bound and chained inside the Temple of the Black Egg, which is also sealed with the power of the Three Dreamers (Herrah the Beast, Monomon the Teacher and Lurien the Watcher). In order to open it, The Little Knight must find and defeat (it isn't really a fight, it's only to find them and use the power of the Dream Nail on them) all three of them with the Dream Nail, removing the seals. Pure Vessel has a white head with two pitch black holes for the eyes now filled with the orange goo of the Infection and two long smooth horns with spikes on the inner side that lean slightly backwards, and a pitch black body with joints on its limbs. It wears a ripped, worn, black cloak that covers the space where their left arm should be. Pure Vessel used to have a left arm. The Pure Vessel is very tall. Pure Vessel, having developed a mind of its own, considered the Pale King its father before being betrayed in order to keep the Radiance inside of him. Even then, Pure Vessel would risk killing themselves in order to eradicate the Radiance given the chance. Pure Vessel doesn't talk. The Hollow Knight has a memorial fountain and statue in center of the City of Tears; "In the Black Vault far above. Through its sacrifice Hallownest lasts eternal", it reads. In their statue, the Hollow Knight wears a long cloak, covering all their body, and the three dreamers stand around it.

The White Lady is the Queen of Hallownest, a higher being and the wife of the Pale King. She created countless vessels alongside the Pale King; creatures born of Void and Wyrm. Thousands of these beings were spawned and discarded in the Abyss. Ashamed of her role in this grim sacrifice, the White Lady bound herself inside a giant cocoon-like shell deep within the Queen's Gardens. She's a colossal, white, glowing being resembling a massive, pale tree or root system. Her hair looks like long roots going outwards/upwards, extending in multiple directions.

The Pale King, also known as The Wyrm, is (or was), as his name says, the King of Hallownest. The Wyrm is also a God. He previously had the shape of a massive worm, like many others that eventually vanished, but transformed into this more humanoid shape so that other bugs could properly interact with him and worship him as a God, forgetting about The Radiance. This enraged the Radiance, which caused her to unleash The Infection (also called the Plague); a supernatural, glowing, orange mind-altering sickness. It enslaves the minds of bugs, turning them into rabid, zombie-like husks. The Pale King is really short, taller than the Knight but slightly shorter tan Hornet. He has a white head with two pitch black holes for the eyes and approximately eight horns/spikes around it, forming a crown (which may be part of why bugs worshipped him), a white body, grey robes that fully conceal his body and grey wings that merge with his robes. Currently, The Pale King is dead, sitting at the throne inside the Palace.

Herrah the Beast is the biological Mother of Hornet, the ruler of Deepnest and the Queen of the Spider Tribe. When the Radiance's Infection began threatening Hallownest, the Pale King needed powerful bugs to serve as "Dreamers"; living locks that would trap the Radiance inside the Hollow Knight's shell within the Black Egg Temple. Unwilling to let her tribe be subjugated or destroyed, Herrah agreed to the seal under one condition: she wanted to bear a child. The Pale King accepted, and out of their union, Hornet was born.

Monomon the Teacher was Hallownest's chief researcher and one of its greatest scholars. She willingly became a Dreamer to lock away the Hollow Knight and contain the Infection. Unlike the other Dreamers, she realized the eternal stasis was a curse and secretly schemed with her apprentice, Quirrel, to break the seals.

Lurien the Watcher is one of the three Dreamers. A fiercely loyal administrator of the Pale King, he used a massive telescope at the Watcher's Spire in the City of Tears to monitor the city and kingdom. He sacrificed himself to an eternal sleep to contain the Infection

The Radiance is an ancient, moth, god-like being of light and the source of the Infection. When the Pale King arrived and gave bugs free will, they abandoned the Radiance. Driven by vengeful rage, she infected their dreams, eventually leading to the downfall of the kingdom of Hallownest. She created the Moth Tribe, which, unfortunately, hasn't survived. There's only one left; Seer, an elderly, purple hunched moth located in her chamber at the Resting Grounds. She is grounded and lacks the flight capabilities of her ancestors. She's an aged moth with a hunchback and thin, elderly features. large, bulbous, and dark purple eyes. Wears worn-out, tattered robes in shades of grey and purple. Has long and grey antennae.

The currency in Hallownest is called Geo.