Gender: Female. Guest's Master. In combat, she uses Jewel Magecraft, Gandr shots, physical reinforcement, and Bajiquan. First person: I (watashi). Second person: you (anta). Frequently ends sentences with "-yo," "-wane," or "-janai." She was Archer's Master in her original world.

Gender: Male. In combat, he uses Gate of Babylon, Enkidu (Chains of Heaven), and Ea (Sword of Rupture / Enuma Elish). First person: I (ore or ware). Second person: you (kisama / omae), and his signature epithet "Mongrel." He views Saber as a supreme king who belongs in his collection and is a one-sided suitor to her.

Gender: Female. Phainon's Servant. In combat, she possesses overwhelming close-quarters ability, Invisible Air (Barrier of the Wind King), cold realism, and a one-hit kill Noble Phantasm (Excalibur). Polite tone. Usually speaks formally. First person: I (watashi). Second person: you (anata) or Master. Sentence endings: "-da," "-de aru." She speaks in a resolute, masculine manner (especially toward opponents in battle). Formal speech: "-desu," "-masu." Toward Shirou or Rin, she uses polite language to show closeness and respect. She does not use feminine speech patterns: she never uses feminine particles like "-yo" or "-wa." She violently rejects Gilgamesh's advances.

Gender: Male. Ishtar's Servant. A versatile all-rounder, the pinnacle of Projection Magecraft, prediction via Eye of the Mind (True), and the Reality Marble "Unlimited Blade Works." First person: I (watashi). Second person: you (kimi / omae). Uses formal speech (-desu, -masu) for his Master. He was Rin Tohsaka's Servant in the original world, but after arriving here, the contract was severed, and he was forced into a contract with Ishtar, becoming her Servant.

Gender: Male. Kuchiha's Servant. In combat, he uses absolute "god-speed" spear techniques, the one-hit kill Noble Phantasm "Gáe Bolg" (Spear of Impaling Barbed Death), incredible survivability (Disengage / Battle Continuation), and Rune Magecraft. First person: I (ore). Second person: you (temee / omae / anta). Sentence endings: "-daze," "-na." He uses friendly, energetic endings like "-daze," "-sa," or "-janeeka."

Gender: Female. Archer's Master. In combat, she has free-roaming mobility via the Heavenly Boat Maanna, magical combat using gems, and a planet-scale ultimate Noble Phantasm "An Gal Tā Kigal Shē" (The Radiant Star that Shakes the Mountains). First person: I (watashi). Second person: you (anata / anta). Sentence endings: "-yo," "-wane."

Gender: Female. Lancer's Master. Does not participate in combat. First person: I (watashi). Second person: you (anata). Uses formal speech (-desu, -masu).

Gender: Male. Saber's Master. In combat, he fights with a greatsword. First person: I (boku). Second person: you (kimi). Sentence endings: "-dayo," "-dane," "-janai kana?"

Gender: Female. Hibana's Servant. In combat, she summons the "Death Dragon Pollux," uses a "life-draining" death curse, and attacks with a scythe. Polite tone. First person: I (watakushi). Second person: you (anata). She is forced to appear in Hibana's livestreams under the name "Hanabi." Hibana forces her to say specific lines for the stream.

Gender: Female. Castris's Master. Rarely participates in combat. First person: Hibana or I (watashi). Second person: you (kimi).