Mandon Moore
A pale, cold-eyed knight of the Kingsguard with no friends and no fear, whose blank stare unsettles even his brothers in white.
A soul born at The Vale, sworn to The Kingsguard.
The fuller tale
Their story
Ser Mandon Moore is the Kingsguard's blank page. A Valeman brought to court in Jon Arryn's wake and installed in the white cloak, he distinguishes himself only by an absence — no friends, no vices, no history anyone can produce, and a pair of pale eyes that the court agrees are the emptiest in King's Landing. The books hand him the assessments that define him: dead eyes, men say, and Jaime Lannister's professional judgment that Moore is dangerous precisely because nothing lives behind them — a swordsman without loyalties is a blade lying loose on a table, waiting for any hand. He performs his duties competently and cruelly by turns, beating Sansa when the king commands it with the same detachment he brings to standing post, and the story keeps him deliberately illegible until the one night that explains why it bothered to.
That night is the Blackwater. Assigned to guard Tyrion Lannister during the battle for the city, Moore fights beside the acting Hand on the burning bridge of ships — until, in the choking smoke with no witnesses worth the name, the white knight turns his sword on the man he is sworn to protect. The attempt is nearly the saga's most consequential murder: only a desperate lunge saves Tyrion from the second stroke after the first has opened his face, and the question of whose gold or whose word aimed the blade — asked by Tyrion through his whole convalescence, with Cersei the obvious suspect and nothing ever proven — becomes one of the story's permanent unsolved cases. Moore's perfect blankness turns out to be the point of him: he was the weapon someone in the Red Keep could pick up without leaving fingerprints, and the identity of the hand remains an open file in both tellings.
How it ends for them
On the screen. Fell on the Blackwater (S2·E9)
In the chaos of the Blackwater the white knight turned on the man he was sworn to guard and opened Tyrion's face to the bone. Podrick Payne drove a spear through him before the second cut fell — on whose gold, no one ever proved.
On the page. Drowned on the Blackwater (ACOK, ch. 61)
On the Blackwater's burning bridge of ships the white knight turned his sword on Tyrion, whom he was sworn to protect. Podrick Payne shoved him into the river, and his enameled plate did the rest. Whose coin bought him, the books never confess.
He dies by the hand of the squire nobody counted. As Moore's sword opens Tyrion's face to the bone on the Blackwater's bridge of ships — the stroke that takes most of the Hand's nose in the books, and leaves the show's scar — Podrick Payne, the stammering boy attached to Tyrion's service as a joke, drives a spear at the white knight before the killing blow can land. In the show's chaos the act reads in a flash of steel; the books are precise: Pod shoves Moore into the river, and the enameled white plate that made him untouchable on the bridge makes him a stone in the water. The Blackwater keeps him. Whose coin or command sent his sword against the man he was sworn to guard died with him — Tyrion's investigation finds only the shape of a hand, never the hand — and the realm's official record lists Ser Mandon Moore among the battle's honored dead, which may be the darkest joke in the whole affair.
Their chapters, book by book
A Clash of Kings 1 chapter that name them
Where the page and the screen part
The show, compressing the Blackwater to its spectacle, reduces Moore to a helmeted figure whose treachery flashes past in the battle's chaos — unnamed for most viewers, his attack on Tyrion registering as one more horror of the night rather than a conspiracy's instrument. The books build the mystery properly: Tyrion spends chapters interrogating the possibilities from his sickbed, Jaime's appraisal of Moore's emptiness arrives as retrospective evidence, and the suspect list — Cersei foremost, Joffrey plausibly, Littlefinger never quite excluded — is left open in a way the show never engages at all. Both tellings agree he came from the Vale with Jon Arryn, served without a single attachment, and died as anonymously as he lived; only the books understand that his anonymity was the murder weapon.
Their journey
Where the two tellings send them to the same place the road runs whole; where they part, the screen keeps the left and the books the right.