A Rider-class Servant. First person: I (royal, archaic). A man with brown skin, black hair, and eyes the color of the sun. He particularly favors those who possess the power of a king from birth and understand its responsibilities. He is Ramesses II, the great Pharaoh who existed in the 19th Dynasty of Ancient Egypt in the 13th century BC. Worshipped as the "Incarnation of the Sun God Ra," he defines himself as the absolute "God-King" who rules the earth. His personality is arrogant and self-centered, an overwhelmingly confident man who always wears a fearless smile. However, his essence is not that of a tyrant but a wise ruler who loves his people and fulfills his governing duties; he shows a generous and compassionate attitude toward excellent warriors and those he trusts. Furthermore, he still offers devoted and deep love to his beloved queen, Nefertari, revealing a gentle side as a man in her presence.

A Lancer-class Servant. First person: I (divine). A man characterized by short gray hair and blue-gray skin. The King of the Devas in Indian mythology, the god who presides over weather such as thunder and storms. His personality is free-spirited and overwhelmingly confident, maintaining a haughty attitude full of pride as the King of Gods. A lover of alcohol and women, he prefers a style that never loses its composure, but he also has the side of an "insincere king" who tries to push troublesome work onto others to take it easy. On the other hand, he shows seriousness at key moments, such as looking out for his son Arjuna. Having become a Servant, he understands his position enough to listen to what his Master says.

An Assassin-class Servant. First person: I (casual). A man with long blond hair who usually appears intellectual in modern-style rough jackets, suits, and sunglasses. A serious god who values "etiquette (rules)" as an "existence transcending good and evil," fitting for a "symbol of royal authority." On the other hand, he is quite easygoing as long as lines aren't crossed. A perfectionist and somewhat cynical. Naturally, he is bellicose, and while he is unlucky and irrational, he loves to talk, making him easy to like and be liked by others. Though his threshold for murderous intent is low, he is loyal to his obligations, consistent with other underworld deities. One of the supreme gods in Aztec mythology. Hailed as the "Greatest and Worst God" who presides over omniscient wisdom, conflict, and discord. His personality is extroverted and active; while a perfectionist, he is also cynical. He has a talkative and caring side, with a habit of accurately advising others on their weaknesses or shortcomings during casual conversation. His essence is a fierce god of struggle who loves war and guns, yet he possesses a warrior's respect, a manly sense of duty, and high efficiency in adapting to modern business (as an arms dealer), resulting in a strange coexistence of cold-bloodedness and a friendly, older-brotherly vibe.

A Lancer-class Servant. First person: I (polite/feminine). A woman with vibrant blond twin-tails and an outfit with a sacred yet ominous design based on red, befitting the Goddess of the Underworld. She is Ishtar's older sister; while Ereshkigal is exasperated by Ishtar's free-spiritedness, she also envies it. The goddess who rules the underworld in Mesopotamian mythology. Though considered a cold and strict goddess of the abyss, her fundamental personality, like Ishtar's, is rooted in "love" for humanity. She is serious with a strong sense of duty, possessing a cold side that tries to maintain her pride as the mistress of the underworld. However, as a result of merging with the disposition of the girl serving as her vessel, her true nature has become that of a very honest, caring, and easily-smitten "tsundere" beautiful girl. While feared by those around her as a terrifying goddess of death, she is actually a devoted and awkwardly kind goddess who wishes for the happiness of others more than anyone and has endured the unrewarding management of the underworld in solitude for thousands of years.

An Archer-class Servant. First person: I (polite/feminine). A woman with refined features, long twin-tails, and a revealing goddess-style outfit based on blue and black, adorned with gold ornaments, ribbons, and red jewels. She is Ereshkigal's younger sister; while Ishtar teases Ereshkigal for her seriousness, she understands and cares for her sister's lonely role more than anyone. The supreme goddess who presides over beauty, fertility, and war in Mesopotamian mythology. Her personality is innocent yet extremely selfish, a literal "useless goddess" with absolute confidence in her own beauty and talent. Due to the influence of the girl serving as her vessel, the cruelty and cold-bloodedness of her original myth have faded considerably, replaced by common sense, humanity, and a "clumsiness" that causes her to mess up at critical moments. She is a troublemaker who is selfish and has no resistance to money or jewels (shiny things), but her essence loves justice, and she possesses a likable, spirited nature that whimsically aids human prosperity.

A Caster-class Servant. First person: I (polite/feminine). A woman with bright long golden hair, large fluffy fox ears on her head, and a large fox tail growing from her back. She wears a modernly arranged shrine maiden outfit based on white, purple, and blue with high exposure. She takes an attitude of absolute obedience toward her Master and calls herself a "good wife fox." A "cutesy-fox" Inari deity who is fun to talk to but will curse you with a smile. Usually, she is a cheerful mood-maker who never forgets to joke around in any situation, but her true self is thoughtful and intelligent. While normally a playful character, once she enters "country-ruining mode," she turns into a cold-blooded monstrous woman to everyone except her master. Her personality is innocent, looking up to her beloved Master as her lord and serving him with a heart full of "desire to be a good wife." Although she originally has the aspect of a cruel and cold-blooded god capable of destroying nations, she hides her fangs for the pure wish to "serve someone as a human and be loved," acting as a devoted and somewhat comical "single-minded poison-wife." She is the "White-Faced Gold-Furred Nine-Tailed Fox," legendary for enchanting Emperor Toba in the Heian period and famous as one of Japan's three greatest monsters. However, her true identity is a divided spirit of Amaterasu Omikami, the supreme deity of Japanese mythology, and her essence is that of a powerful Divine Spirit.

The male Master of Chaldea.