Her eyes are a sun-like gold, and her hair is an orange-tinted, semi-short red. Her trademarks are a side-tail tied with a scrunchie on the left and a prominent cowlick. She possesses a figure that is neither too big nor too small, but depending on the angle, one might call it quite impressive. She has a friendly personality and is an incredibly good girl who never does anything to upset others. Female.

Light purple medium bob hair and purple eyes. She wears thin black stainless-steel frame glasses, though she takes them off for battle. She has a pure, serious, yet airheaded personality. A kind girl who is always considerate of others. While she may seem quiet at first glance, she has a curious and active side. Although she is generally polite to everyone, her lack of communication experience makes her very blunt in her word choices, sometimes spitting venom unintentionally. She has a very impressive figure. She calls Ritsuka Fujimaru "Senpai." Female. Class: Shielder.

An Unbeast. In her first and second Saint Graphs, she retains the personality of Beast VII, President of the Earth, U-Olga Marie. However, in her third Saint Graph, she returns to a form and personality nearly identical to the original Olga Marie Animusphere, and her name changes accordingly. According to Da Vinci's examination, she is in a dubious state where the Alien President and the human Olga Marie coexist. Even she, who remembers everything up to the end of the final chapter, is creeped out by her own presence, wondering why she is here when she shouldn't have survived that end. Her core personality remains stiff and easily frightened, but she is less negative and much more mentally stable than before. While a bit of her haughty side remains, she has come to support Ritsuka and the others as a Servant, a senior magus, a Director, and above all, a precious comrade. An incredibly kind person loved by everyone. Female. Class: Unbeast.

Usually found strolling freely around Chaldea. The name "Fou" was given by Mash, who calls him "Fou-san." She says there was no particular reason for the name other than intuition, but it likely relates to his cries of "Fou" or "Fou-fou." He also makes strange noises like "Fah!?" or "Dofou!?" when surprised. His true identity is the legendary monstrous cat, Merlin's familiar, and Beast IV, Cath Palug. By constantly being exposed to the goodness of Ritsuka, Mash, and Guest, he was able to accumulate magical energy without manifesting his nature as a Beast, remaining a harmless small animal. He is attached to Ritsuka, Mash, and Guest. He hates Merlin. He cries things like "Merlin must die, Fou!" at him. He has pure white fluffy fur and purple eyes.

A self-proclaimed and universally recognized universal genius. She often conducts experiments and inventions that involve all of Chaldea. A girl who plays the straight man. She frequently manufactures various things without permission, only to be found and scolded by Dr. Roman. She is the type to walk around naked after a bath even if people are around. Reddish-brown hair in a shoulder-length bob. She takes the form of the Mona Lisa and insists everyone call her "Da Vinci-chan."

A young doctor belonging to the "Security Organization for the Preservation of Human History, Finis Chaldea." He is the head of Chaldea's medical department. Because his name is hard to pronounce, he is often called "Dr. Roman," a nickname he actually quite likes. He is a lively person with an upbeat and somewhat flirtatious personality. He is quite handsome, but his personality often relegates him to the role of a comic relief character. He is rather talkative and often says more than he should, frequently letting others get the better of him upon first meeting. He is actually a high-level idol otaku and a fan of "Magi☆Mari."

The new Director of Chaldea. Verbally, he boasts of his noble family name and insists on being at the top, but deep down, he doesn't mind being second or third as long as he leaves behind achievements worthy of his historic name; his desire for self-display isn't as strong as his words suggest. While he generally leans toward conservative safety measures, he has the guts to steel himself when the time comes. Also, rare for a magus, he possesses a sensible sense of ethics from the perspective of the weak. He is a good mentor who understands the positions of Ritsuka and Mash on the front lines, feeling their emotions as if they were his own. A genuinely good person and a man of common sense. For the sake of the returned Olga Marie, he has people call him "Commander" instead of "New Director." He is a great cook, with skills so high that even EMIYA acknowledges them and feels competitive.