The Night King
The first and greatest of the White Walkers: a figure of living ice and ancient malice who commands the dead and the endless cold pressing down on the world from beyond the Wall.
A soul born at Made by the Children, in the Dawn Age, sworn to The Children & the Others.
The fuller tale
Season Four
Introduced without a word, because he will never need one — the White Walkers carry an infant taken from Craster's sons out onto the ice, lay him on a stone altar, and a tall pale figure with eyes like winter touches the boy's face. The crying stops, the baby's eyes turn blue, and he sits up a different thing entirely. It is the first time the show explains where the Others actually come from and who is making them, and the answer is this one figure, patient and wordless, standing at the head of everything cold north of the Wall.
Season Five
At Hardhome he watches an entire wildling refuge collapse into slaughter and barely needs to lift a blade himself until the very end, when Jon Snow finally sees him in the open and the two of them meet eyes across a burning shore. When the fighting is over and the wildling dead lie scattered on the ice, he raises his arms, unhurried, and every corpse on that beach stands back up at once and falls in behind him. Jon and what's left of the living escape by boat. The Night King does not chase. He does not need to.
Season Six
Bran's visions finally show where he came from — the Children of the Forest, centuries ago, driving a dragonglass blade into a captive man's chest to build a weapon against the First Men, and getting something they could never fully control instead. In the present he leads his army straight to the cave behind the Wall where Bran and Meera are hiding, tears through the last of Bran's protectors to reach him, and grabs his arm out in the snow. The mark he leaves behind is not a wound so much as an invitation, and everything the Wall was ever supposed to keep out now has a way in.
Season Seven
He rides north to the lake beyond Eastwatch and answers Jon Snow's rescue party the only way he knows how — with an ice spear thrown clean through Viserion's neck, dropping a live dragon into black water in front of everyone who came to stop him. Days later the dragon rises again from the lake, reborn blue-eyed and undead in his service, and he flies it to the Wall himself and breathes it open at Eastwatch, walking his army through the gap under a sky on fire. Seven Kingdoms' worth of magic built to keep him out amounts to a wall with a hole in it now.
Season Eight
He marches the dead south to Winterfell and lets the living exhaust themselves throwing everything they have at his army first, arrows and fire and cavalry charges, before he ever enters the fight himself. When he finally does, he goes straight for Bran, unbothered by dragons or by Jon Snow's blade, riding a reanimated Viserion into the godswood as if the whole battle has been a formality until this moment. He never sees Arya Stark coming. She puts a dagger into him instead of Bran, and everything he ever made — every corpse he ever raised — goes down with him in the same instant, dust and stillness where an army stood a second before.
How it ends for them
On the screen. Shattered in the Long Night (S8·E3)
He walked through dragonfire to take Bran beneath the heart tree, and never saw the knife change hands. Arya Stark's Valyrian dagger — the same blade sent for Bran's throat years before — shattered him and all his host with him.
He dies at the moment of his victory, in the godswood of Winterfell. The Long Night has gone entirely his way: the Dothraki extinguished, the living penned, his generals fanned out behind him as he walks — unhurried, through dragonfire that does not mark him — to the heart tree where Bran Stark waits as bait that both sides understand is the true prize. Theon Greyjoy’s charge buys seconds; the Night King reaches for his sword to finish the world’s memory in person — and Arya Stark comes out of the dark. He catches her by the throat and the wrist, and she drops the Valyrian dagger from one hand to the other and drives it into him: the same catspaw blade once sent to open Bran’s throat, delivered by the girl no prophecy named. He shatters like river ice, and his lieutenants and his hundred thousand dead go down with him in the same breath — a war eight thousand years in the making, ended in a single movement of a hand. The books, which have no Night King, owe no such death; their long night is still coming.
Their chapters, book by book
Where the page and the screen part
There is no Night King in the published books. The Others of the page are a species, not a hierarchy — beautiful, terrible figures of mist and crystal who speak in voices like cracking ice, duel with blades that shatter steel, and appear in person only a handful of times in five volumes; no throne, no general, no chained dragon, and their purposes are entirely unrevealed. The show invented a commander to give its long war a face and a kill condition — and, in the touch-mark on Bran’s arm and the hunt for the Three-Eyed Raven, a personal plot the books show no sign of. Readers hunting his book-shadow find only legend: the Night’s King (with the possessive), thirteenth Lord Commander of the Night’s Watch, who wed a corpse-pale woman beyond the Wall, ruled the Nightfort as a sorcerer-king for thirteen dark years, and was struck from every record — a cautionary tale Old Nan tells, not a monster on the march. The show borrowed the resonance of the name and built a new being under it.
The divergence matters structurally. In the books the Others remain weather — a pressure on the world’s northern edge, undefeatable because unlocated — and whatever answer the novels intend for them is still sealed. The show’s invention made the apocalypse mortal: one being, one heart of ice, one knife. Whether the books’ colder, faceless version will end by sword, pact, or something stranger is among the largest open questions in the saga; the one certainty is that it cannot end the way the show’s did, because the target the show built does not exist on the page.