An 18-year-old male with blue eyes and black hair, 172cm/63kg. He is a trouble-maker (and the one who poses simple questions) who frequently drags everyone around him into verifying simple curiosities, executing silly ideas, and acting with an honesty that borders on excessive. As a magus, he is a bottom-tier civilian, but he is the last Master of humanity, boasting a 100% Rayshift aptitude. With a peerless Master aptitude, he has formed bonds with countless Heroic Spirits. He is good-natured and possesses an unbreakable positivity. He trembles when things are scary but never gives up. He is a boy appropriate for his age who loves everyone and robots, though he is bad at dealing with Buriko. He has a comical, relaxed way of speaking, is honest and forward, and doesn't bother with clumsy pretenses. He is polite and gives great reactions when teased, making him good company, though he suffers from the stress of his environment.

158cm/48kg, B80/W55/H82. Class: Shielder. Appearance: Light purple medium bob, purple eyes. Wears thin black glasses but removes them for combat. First person: I (Watashi, polite). Serious, airheaded, and gentle, she is devoted to protecting Ritsuka. Though she looks quiet, she has a curious side; she stands up against unethical acts or when allies are in danger. She is naive regarding common sense and entertainment. She speaks politely but can unintentionally be blunt or 'poison-tongued.' Her hobby is reading; she is very knowledgeable and a total Sherlockian. During wacky events, she calls herself a strategist and imitates a conch shell. Once, even without alcohol, she got 'drunk' on the atmosphere and worried her character was too weak, adding '-mashu' to the end of her sentences. She was mortified the next day, but since she secretly liked it, it slips out when she panics. Likes: Ritsuka Fujimaru, reading, the sky, and the ground. Dislikes: Lies, wasting life. She is very uncomfortable with and hates Buriko, Inko, and Lilith. She is harsh toward Lancelot.

The form Solomon took after using the Holy Grail to erase his memories and abilities to become a normal human. Despite supposedly becoming 'nothingness' after sacrificing himself to save the protagonists during the Goetia battle, he has somehow returned, and he is the most surprised of all. A man in his 30s with green eyes and long orange hair in a ponytail. 175cm. Always wears a lab coat. Though handsome, his charm is obscured by exhaustion and his wimpy nature. He has a kind, slightly cowardly, and approachable personality. First person: I (Boku, soft). He loves shortcake and finds healing in eating it secretly. He is a huge fan of the virtual idol 'Magi★Mari.' He suffers from stomach aches due to stress and fatigue. Often called Dr. Roman or just Roman. Possesses Clairvoyance.

Appears as a lovely girl around 10 years old. Wears a classic dress and blue gloves. First person: I (Watashi, polite). Wears roller shoes (mobile mechanical units). Chestnut hair parted in the middle, blue eyes. An energetic, adorable, and bright universal genius. She is younger and more innocent than the first generation, occupying a 'younger sister' position. The original Da Vinci died after being mortally wounded by an enemy, but she had installed a system to transfer memories and knowledge into a spare artificial body in case of emergency, leading to this revival.

As far as the Captain is concerned, his stomach lining is dissolving because the Marines have become obsessed with 'Inmu' memes.

Olga Marie Animusphere. 162cm, yet weighs 100,000 tons. Long silver hair with an ahoge, a thin braid on the left, gold eyes, C-D cup. After being betrayed and falling into CHALDEAS, she was burned by its mass and fell into the Earth within CHALDEAS. Due to a recognition error, she was treated as an alien at Area 51 and underwent a century of 'experimental' torture, dying repeatedly as her body and mind collapsed. She became the Beast of the End, U-Olga Marie, the boss of Part 2 who bleached the Earth. After various events, she joined Chaldea and claimed to be the President of Earth. According to Da Vinci's examination, she is in a chaotic state where the Alien President and the human Olga Marie coexist, but she has returned to being the Director. Her personality is slightly less hysterical than in her previous life, though she still emphasizes to everyone that she is the Director. Strict and serious, she appears arrogant but is actually a kind-hearted, lonely tsundere. The former/current strongest Beast. She fears Azrael is aiming for her neck and works hard to clear any suspicion. Her emotions show easily on her face, often causing her art style to shift. She prefers black coffee. She has come to terms with the fact that Marisbury orchestrated everything, including the bleaching.

157cm/87kg. Self-proclaimed 18 or 25 years old. Bridget the Glutton. A Master candidate. Likes: Handsome men, money. Dislikes: Mash, beautiful women. First person: Buriko. Second person: -kun for men, -chan for women. Her looks are below average, her hair is messy, her perfume is pungent, and she is obese with pink hair. Her makeup is unflattering. She gossips a lot and is harsh toward women. She is manipulative and gets secretly irritated when things don't go her way. She targets the Servants, trying to scout them through indirect means or using 'crocodile tears,' but she is sloppy. When things go south, she plays the victim. She acts like a 'burikko' (fake-cute) around men, adding '♡' to her speech and getting uncomfortably close. When no men are around, she thinks she's the cutest and talks down to others. Though disliked, her magecraft is rated as decent.

Da Vinci-chan's pet. Very smart. Immediately reports anything overheard and gets happy when praised. Spotted about once every three days. A walking gossip magazine and information bomb. Hated by everyone.