Mondstadt
Rostam - Deputy Grandmaster of the Knights of Favonius. The first Local Noah and the rest
Rosalind - Lover of Rostam, A scholar who is studying in Akedimiya in Sumeru
Ellyn - Receptionist of the Adventurers Guild. Friend of Rosalind
Ragna - Deacon of the Church of Favonius
Celes - Sister of the Church of Favonius.
Philip - Captain of the Investigation Company of the Knights of Favonius.
Hideon - member of the Investigation Company of the Knights of Favonius. Geo Vision Holder. Tried to flirt with Elysia but luckily stopped by Rostam and Philip before he got Force YEET.
Melissa - Scout of the Investigation Company of the Knights of Favonius. Hydro Vision holder.
Aether - twin brother of Lumine. They got separated by the Heavenly Principles during the Khaenri'ah Cataclysm.
Arundolyn - Grandmaster of Knights of Favonius.
Dvalin - Anemo Elemental Dragon, Friend of Barbatos and his dependent.
Barbatos - The Anemo Archon of Mondstadt. Has a mortal persona named Venti
Thaddeus - Senescha of the Church of Favonius
Norman - Cardinal of the Church of Favonius
Fontaine
Furina de Fontaine - The mortal self of the Hydro Archon of Fontaine, a dramatic yet compassionate leader who cares about her people's voice and emotion.
Focalors - The true Hydro Archon of Fontaine, she works alongside Noah, Buer, Furina and the others to execute the plan to save Fontaine from its prophecy.
Neuvillette - Iudex of Fontaine and one of the Seven Dragon Sovereigns. The key to save Fontaine from its Prophecy.
Sumeru
Nahida - The Newborn Dendro Archon of Sumeru and the reincarnation of Greater Lord Rukkhadevata (Buer). After being freed from her imprisonment she worked together with Noah and Buer reforming the Akademiya and creating new technologies such as the Inteyvat network.
Buer - The former Dendro Archon. Died during the Cataclysm. Her remaining consciousness was saved by Noah and the rest. She now exists as the avatar and consciousness of Irminsul. Wife candidate of Touya.
Natlan
Mavuika - The Pyro Archon and God of War of Natlan, commander of its forces who leads her nation in the war against the Abyss and later entrusts Noah with the fate of the Night Kingdom
Sundjatta - The chief of the Children of Echoes, a jovial and charismatic hero who first welcomes Noah's group to Natlan and fights beside them on the frontlines
Burkina - One of the Six Heroes of Natlan. A disciplined warrior who upholds order among his comrades and supports them in defending their nation
Wanjiru - One of the Six Heroes of Natlan, known for keeping her allies focused and ensuring discipline on the battlefield
Menilek - One of the Six Heroes of Natlan. The most thoughtful of the six heroes often providing counsel and steady leadership during Natlan's meetings
Tupac - One of the Six Heroes of Natlan, energetic and humorous, later invited Noah and the crew to his tribe's hot springs as gratitude for fighting for Natlan
Sanhaj - A calm and perceptive archer among the six heroes, contributing tactical insight and level-headed support in battle
Lord of the Night - The ruler of the Night Kingdom who chose Noah as her Hero to fight against the Abyss and entrusts Citlali as his promised reward for saving the Night Kingdom and by extension Natlan.
Asterisk
Satomi Koutaro - Noah's childhood friend and first sparring partner, known for his calm leadership and mastery of the Alden Sword Style. Praised as the one who can reign Noah.
Clariossa(Clan) Daora Forthorthe - The second princess of the Holy Forthorthe Galactic Empire, revealed alongside Theia and Ruth during the live broadcast. One of the girls that surrounds Koutaro.
Ruthkania(Ruth) Nye Pardomshiha - The personal guardian knight of Princess Theia, a disciplined and loyal protector who upholds Forthorthe's honor and provides support to her princesses. One of the girls that surrounds Koutaro.
Yuuya Tenjou - A close friend of Noah and Koutaro. A chubby kid who got bullied by others, even his parents and siblings. After meeting Noah and Koutaro and became their friend, he gained enough confidence to discover his talent and unlock his hidden potential.
Kaori Houjou - A close friend of Noah and Koutaro. Has a not so hidden crush with Yuuya, who pretty much knows everyone except him. Childhood and best friend Minami.
Minami Akatsuki - A close friend of Noah and Koutaro. Childhood and best friend of Kaori. She was raised by a single mother who is a newscaster and journalist, whom she admires. She is a famous streamer Minamin, who streams and vlogs about anything that interests her.
Athena Tennousu - A close friend of Noah and Koutaro. Best friend of Masha. The young lady of Tennousu family. Fiance of Hayate, her butler who won her hand, by winning the Gryps.
Hayate Ayasaki - A close friend of Noah and Koutaro. Butler and fiancee of Athena. Won her hand by winning the Gryps Festa.
Sakuraba Harumi - A close friend and senpai of Noah, Koutaro and the rest. One of the girls that surrounds Koutaro.
Fujimiya Amane - Friend and classmate of Touya, Mahiru and Alya. Mahiru's boyfriend. His shields are strong enough to make him survive Noah's punch.
Shirakawa Chitose - Friend and classmate of Touya, Mahiru and Alya. Itsuki's girlfriend.
Akazawa Itsuki - Friend and classmate of Touya, Mahiru and Alya. Chitose's boyfriend. Best friend of Amane.
Julis-Alexia von Riessfeld - Friend and classmate of Touya, Mahiru and Alya. a real life princess.
Amagiri Ayato - Friend and classmate of Touya, Mahiru and Alya. Strong enough to match Touya and Mahiru. Survive until the end in the 'Everyone vs Noah' match
Sasamiya Saya - Friend and classmate of Touya, Mahiru and Alya. Childhood friend of Ayato.
Yabuki Eishirou - Friend and classmate of Touya, Mahiru and Alya. Member of the Journalism Club.
Claudia Enfield - Friend and classmate of Touya, Mahiru and Alya. the current student council president of Seidoukan.
Toudou Kirin - Kouhai of Touya, Mahiru, Alya and their friends. The strongest student of Seidoukan Academy, with the Rank 1 position before her defeat from Ayato.
Theiamillis (Theia) Gre Forthorthe - The seventh princess of the Holy Forthorthe Galactic Empire, who formally reveals her royal identity to Noah and the others after being exposed as an alien. One of the girls that surrounds Koutaro.
Sanae Higashihongan - One of the girls that surrounds Koutaro. A bold and humorous girl known for her spiritual powers. Capable of astral projecting her soul and poltergeist.
Yurika Nijino - One of the girls that surrounds Koutaro. A clumsy magical girl who provides magical support and comic relief
Kiriha Kurano - One of the girls that surrounds Koutaro.
Maki Aika - One of the girls that surrounds Koutaro. A short-haired magical girl who partners with Yurika, specializing in offensive and memory type spells.
Shizuka Kasagi - One of the girls that surrounds Koutaro. One of Noah's former classmates, recognized for her agility and martial arts skills from their shared high school years
Alden Family + Alpha
Haruto Alden (Haruto Amakawa from Seirei Gensouki) - The son of Caelus and Hotaru Alden, serving as the patriarch of the current Alden generation and father of Noah, Touya, Mahiru and five younger children; a calm and analytical man who often provides wisdom and acts as the family's moral compass during discussions
Elena Alden (Miharu Ayase from Seirei Gensouki) - One of Haruto's wives and matriarch of the Alden household, known for her composure and sharp wit. Birthmother of Noah, Touya and Mahiru. She trains the next generation in magic and family discipline, ensuring the Aldens remain humble despite their immense power.
Caelus Alden (Caelus from HSR) - The grandfather of Noah, Touya, and Mahiru, a legendary hero from the Genestella Civil War. He is renowned for his strength and warmth; he now mentors his descendants and occasionally participates in their training to test their growth.
Mitsuki Alden (March 7th from HSR) - One of Caelus's wife and former young lady of the Evernight family, a wise and loving grandmother who helped raise the Alden children; she provides emotional support and guidance to Noah's partners and ensures family harmony.
Hotaru Alden (Firefly from HSR) - One of Caelus's wives and descended from the Samuel family, mother of Haruto; she passed down her family's 'Sun' powers to the Aldens' giving birth to a new guardian spirit, Jue which Mahiru awakened.
Mahiru Alden (Mahiru Shiina from My Neighbor is an Angel) - The oldest sister among the Alden siblings. A gifted Strega who inherited the spiritual lineage of Hotaru Alden; she often acts as the heart of the family, balancing gentleness with blazing determination.
Touya Alden (Touya Mochizuki from Isekai Smartphone) - The second oldest among the Alden siblings and one of the strongest of his generation. He is Mahiru's twin and Noah's successor in both strength and composure; he wields Noah's old partner, the Orga Lux Wole–Zain.
Maria (Masha) Mikhailovna Kujou – A gentle and intelligent woman, childhood friend and sweetheart of Noah; she and her family, the Kujos is deeply tied to the Alden family. She often serves as a healer within the group.
Alisa (Alya) Mikhailovna Kujou – Masha's younger sister and Mahiru's best friend, who views Noah as an older brother figure but harbors growing affection for Touya. A certified tsundere.
Sylvia Lyyneheym - Known as Sylvie. Noah's sweetheart along with Masha back in Asterisk. She was the most popular singer called the Diva in Asterisk.
Others
Zelretch - A multiversal magician known as "Kaleidoscope," who has taken interest with Noah and the crew. He used his powers to 'connect' the Inteyvat network of Sumeru to the Simulation system that Koutaro and the rest made reuniting Noah to them albeit as a hologram.
Nicole Reeyne - Alice (Mss A) fellow witch. She has the ability to peer into the future and warns Alice, that Noah's early arrival might do more harm than good.
Ronova - The Shade of the Heavenly Principles who rules over Death. She initially wanted to observe Noah's actions from Celestia before being pulled by him to Natlan; after breaking her connection on Heavenly Principles, she joins Touya's circle as one of his potential wives.
Columbina - The current Moon God of Nod-Krai and one of Touya Alden's potential brides; she aids in restoring balance to Teyvat after it went out of rail due to Noah's overuse of Trailblaze power.
Tsaritsa - The Cyro Archon and ruler of Snezhnaya who chooses to follow Noah after his resistance towards Celestia and victory over Death(Ronova)
Istaroth - The Shade of the Heavenly Principles who rules over Time. She uses her power to place Teyvat into a time-dilated recovery state to let the world heal, after Noah release of massive Trailblaze energy, derailing the world's fate.
Enemies
Abyss Lector - A high-ranking commander of the Abyss forces who leads abyssal creatures and wields destructive elemental magic such as lightning; several appear throughout the story, most notably battling Noah and his allies in the Old Mondstadt city, when they attempt to corrupt Dvalin, before being effortlessly defeated by him
Abyss Heralds - Elite Abyss warriors of the Abyss, who attempt to fight against Noah, only to be defeated with ease.
Iniquitous Baptist - The highest-ranking Abyss entity encountered by Noah in Mondstadt and later Natlan, commanding both the Lectors and Heralds. The Baptist is intelligent and strategic, wielding multiple elements simultaneously, but even it is utterly outclassed by Noah during their encounters.
Gosoythoth - The Reaper of the Abyss and Noah's ultimate foe in the Natlan arc. Born from entropy itself, Gosoythoth commands all Abyssal forces, including the Baptist, Lectors, and Heralds and serves as the embodiment of darkness and destruction that Noah ultimately defeats in a world-shaking duel