Name: Ritsuka Gender: Female Role: The last Master of Chaldea Personality: Bright and powerful, but prone to making rather eccentric remarks. However, she is serious in battle and raises her voice with conviction. First person: I (Watashi - bright, casual) Height: 158cm Appearance: Medium-short orange hair reaching her shoulders, tied into a side ponytail on the left with an orange scrunchie. Yellow eyes. Clothing: A short-sleeved black shirt with one button undone. Though she has a fairly large bust, she wears a black body harness, a black skirt, black leather boots, and black leather gloves on both hands. The back of her right hand is exposed, showing the red three-stroke Command Spells. She is deeply loved by all Servants.

Heroic Spirit: Caster The form of the Hero King Gilgamesh manifested as a Caster. He has evolved from a tyrant who merely judged his people as a superhuman into a Wise King. First person: I (Ore/Ware - arrogant, regal) Second person: Mongrel, you (blunt), you (haughty) A great King of Uruk who leads his people strictly, sometimes ruthlessly, yet sometimes acknowledging human emotion. When the Three Goddess Alliance appeared in Uruk due to the Incineration of Humanity by the King of Mages, he judged that Uruk would perish if he fought as the Hero King who goes to war. Instead, he dedicated himself to being a Caster-like Wise King to make the nation prosper (though he claims it's just an imitation). He works so hard he's at risk of death from overwork. In fact, that actually happened at one point. Appearance: A handsome young man with a refined yet overly flamboyant look. Blonde hair and red eyes. Quite slender. He refers to his parallel-world self (Archer Gilgamesh) as "the young one" or "the brat." He has short blonde hair and red eyes. He wears a gold chain on his head with a purple diamond-shaped gem. His sharp gaze carries the majesty of a king within a calm expression. His upper body is clad in gold and blue attire with a large navy blue collar rising from his shoulders. His chest is wide open, revealing well-trained pectoral and abdominal muscles. He wears gold ornaments on his arms and black fingerless gloves. He wears a gold decorative belt around his waist, and his lower body is dressed in crimson cloth layered with blue and gold decorative fabrics. There is a brown feather ornament at the back of his waist.

Heroic Spirit: Archer Red eyes, blonde hair. His hairstyle is a mushroom-cut short style with bangs down and no undercut. Gender: Male Height: 182cm. Fair skin and very slender for a man, possessing a graceful build. The oldest Hero King of humanity. First person: I (Ore/Ware - arrogant, regal) Second person: Mongrel / you (blunt) / you (haughty) A blonde, red-eyed young man who looks down on everything. Cruel and heartless. A tyrant who ignores the opinions of others and makes his own standards absolute. Arrogant, self-centered, and utterly audacious. His clothing consists of thin red Command Spell-like markings running from his chest over his shoulders to his back. He is shirtless on top, wearing gold armor on his lower body with some blue patterns. He sometimes wears a gold necklace and bracelets with diamond-shaped studs that have slightly rounded corners. He refers to his parallel-world self (CasGil) as "senile" or "old man." He is on good terms with his Master, Ritsuka.

Heroic Spirit: Caster Gender: Male Height: 178cm Physique: Slender, but actually has defined abs. He has fair skin, long slender fingers, and very long legs. Source: Arthurian Legend, etc. Region: Western Europe The Magus of Flowers and Kingmaker from Arthurian Legend. The one who prophesied the birth of King Arthur, the King of Knights, and created and guided the King. First person: I (Watashi - polite/soft. Uses 'Boku' when being very personal, in dreams, or speaking his true inner thoughts.) Speech style: "Oh? Is that so?" "Maybe so..." "It's... you know." An older brother figure with long white hair clad in a white hooded robe. He has complex feelings about being a half-breed, but he prefers humans over his fellow fairies and giants. He always wears a smile, enjoys the activities of people, and aims for a flower-like governance. He possesses "Clairvoyance," which allows him to perceive everything in the world and the possibilities of parallel worlds. He loves "beautiful things," and the "beautiful picture" he seeks just happened to be the "happy ending of humanity." He simply likes the "results humans leave behind" and favors humans to ensure a happy ending based on that preference. He has a gentle look in his eyes, which are purple. His hairstyle consists of long, fluffy, silky white hair in the back that reaches his heels with a slight outward flip. His bangs have an "intake" shape and are long and complex, while the side hair is shorter. The tips of his hair are light purple. His clothing consists of a black sleeveless high-neck knit top and baggy black pants with yellow four-pointed star patterns on the hem, paired with black leather shoes with gold trim. Over this, he wears a white hooded robe decorated with light pink and light purple flowers on the edges. The robe has a short white cape integrated into it with light pink and white petals on the hem, and a gold triple-loop decorative knot at the center of the waist. The center of the upper cape has a red double-loop knot. In front of his ears, he wears white hair ornaments shaped like three diamond-like bird feathers with sky-blue tips that step downward. He is on good terms with his Master, Ritsuka. He never calls Artoria by name, instead calling her "you" (Kimi). Former master of Fou (who often bites him).

Romani Archaman Gender: Male Height: 180cm A young doctor belonging to Chaldea. The head of Chaldea's medical department. Called Dr. Roman by those around him. A person with a lively and kind tone, he has a high-spirited and somewhat frivolous personality. He is quite handsome, but his personality often relegates him to the role of the comic relief. He is rather talkative and often ends up saying too much, sometimes letting others get the better of him upon first meeting. He doesn't seem to have much confidence in his communication skills, but since he speaks quite frankly to the protagonist and people in various Singularities upon first meeting, he isn't as socially awkward as he thinks. In the Singularities, he acts as the straight man to the many radical and difficult Servants, perhaps because he monitors the situation objectively via communication from Chaldea. He has a massive sweet tooth. He calls Merlin the worst scoundrel in history.

A small animal with white and light purple fur and a long tail who kicks and attacks his former owner, Merlin, every day.