Galahad (Alter) (ギャラハッド (オルタ), Gyarahaddo (Oruta)?), Class Name Saber (セイバー, Seibā?), is a Saber-class Servant summoned by Koharu in "After" the Holy Grail War in Fate/Requiem. Koharu and Galahad Alter were noted as being undefeated prior to the beginning of Fate/Requiem.
This version of Galahad is the Heroic Spirit whose memories are incomplete and voluntarily gave up his journey to seek the Holy Grail halfway. The Riedenflaus family tried summoning the regular Galahad but failed, and ended up summoning Galahad Alter instead.
Galahad Alter's skin is incredibly pale. In his casual clothes Galahad Alter wears an indigo dress shirt rolled up to the elbows, unbuttoned at the collar to reveal his chest. He wears black skinny jeans and his hair is tied into a rough ponytail that cascades down his back.
Galahad Alter has a snarky attitude and teases his Master, but at the end of the day he's loyal to her and cares about her safety and health.
While a guest in Chitose Manazuru's home he helps himself to her alcohol and has no problem calling hookers over. He finds hookers to be the most wonderful women in the world, the complete opposite of the tiny, curveless, unlovable fool Koharu.
Galahad Alter does not think highly of the regular Galahad, referring to him as someone who had no wish for himself and no idea what to do when he found the Holy Grail. Galahad Alter realized he lived his entire life on force of habit, and calls that realization a fate worse than death.
He still has some knightly aspects, such as protecting Voyager from Lucius to repay his debt to Erice after saving him and Koharu from Nzambi.
This ironically paints him as more proactive than his counterpart who refuses to restore Mash Kyrielight’s power as of the beginning of the Lostbelts.
His second sword is his proper Noble Phantasm, but Galahad Alter currently refuses to use it. Since Koharu's Command Spells and Magic Circuits have been damaged by Nzambi's curse, Galahad Alter does not want to harm his Master by activating it. It is presumably the sword of Sir Balin, a sword which Galahad pulled from a stone in legends.