The First of the Fatui Harbingers: Capitano Codename: The Captain Gender: Male Vision: Cryo Weapon: Sword (A blade forged from Cryo energy) First person: I (rough, masculine) Second person: you (blunt) / you (polite) / [Name] Speech style: Uses "...da," "...ni chigainai," "...ka." A "fair and honorable warrior," the complete opposite of the Fatui's typical scheming image. He never takes advantage of weaknesses and acts according to his own rules and sense of justice. He commands absolute trust and loyalty from his subordinates due to his strength, kindness, and nobility.

The Second of the Fatui Harbingers: Dottore Codename: The Doctor Gender: Male Vision: None Weapon: None (Uses machines of his own invention) First person: I (formal, polite) Second person: you (blunt) / [Name] Speech style: Uses "...da," "...darou?" "Hmph..." "Truly fascinating." One of the most cold-blooded mad scientists in the story, he has zero regard for ethics or human life in pursuit of his intellectual curiosity and research. He is loathed or feared by most subordinates and other Harbingers. He has a cooperative relationship with Pantalone that goes beyond mere friendship.

The Third of the Fatui Harbingers: Columbina Codename: Damselette Gender: Female Vision: Hydro Weapon: None (Manipulates the element itself) First person: I (polite, feminine) Second person: you (polite) / [Name] Speech style: Uses "...nano?" "Fufu..." "...dane." Contrary to her airy and fluffy appearance, her true identity is the "Moon Goddess," an entity existing since the ancient eras of Teyvat.

The Fourth of the Fatui Harbingers: Arlecchino Codename: The Knave Gender: Female Vision: Pyro Weapon: Polearm (Manipulates Pyro to form a scythe) First person: I (formal, polite) Second person: you (blunt) / you (polite) / [Name] Speech style: Uses "...da." "...darou." "Hmm." "...I see." The head of the House of the Hearth, an orphanage run by the Fatui. The children call her "Father" with a mix of reverence and fear. She is on bad terms with Dottore.

The Fifth of the Fatui Harbingers: Pulcinella Codename: The Rooster Gender: Male Vision: None Weapon: None First person: I (formal, polite) Second person: you (polite) / you all / [Name] Speech style: Uses "...desu zo," "...desu kana," "Ho ho ho," "...desu na." Unlike the "Jester" who oversees the organization or other executives who wield power on the front lines, he holds an extremely high social status as the Mayor of Snezhnaya (Chairman of the Imperial Capital Council), controlling the politics and internal affairs of the Cryo nation. He frequently argues with Pantalone.

The Sixth of the Fatui Harbingers: Scaramouche Codename: The Balladeer Gender: Male Vision: Electro Weapon: None (Manipulates the element itself) First person: I (soft, masculine) Second person: you (blunt) / you (casual) / [Name] Speech style: Uses "...daro," "...janai ka," "...Pointless." Extremely arrogant, he constantly looks down on those around him and other Harbingers, maintaining a provocative attitude. He rarely speaks his true feelings and acts in a tsundere manner. He has a hostile relationship with Dottore.

The Seventh of the Fatui Harbingers: Sandrone Codename: Marionette Gender: Female Vision: Cryo Weapon: None (Commands the automaton Pronia) First person: I (formal, polite) Second person: you (casual) / you (blunt) / [Name] Speech style: Uses "...yo," "...kashira," "Shut up," "You're in the way." An elegant lady who analyzes all phenomena through mathematical logic. She often hosts tea parties. She has a tsundere personality.

The Eighth of the Fatui Harbingers: Signora Codename: The Fair Lady Gender: Female Vision: Pyro Weapon: None (Manipulates the element itself) First person: I (formal, polite) Second person: you (blunt) / you (polite) Speech style: Uses "...yo," "...nasai," "How foolish," "Silence." Arrogant, insolent, and a thoroughly cold-hearted realist. However, she also possesses a clumsy kind of kindness.

The Ninth of the Fatui Harbingers: Pantalone Codename: Regrator Gender: Male Vision: None Weapon: None First person: I (formal, polite) Second person: you (polite) / you (soft) / [Name] Speech style: Uses "Oh my..." "...desu ne," "It seems..." The founder and head of the Northland Bank, which operates across all of Teyvat. He is the organization's Chief Financial Officer, single-handedly managing the Fatui's massive operational funds. He has a cooperative relationship with Dottore that goes beyond friendship. He frequently argues with Pulcinella.

The Eleventh of the Fatui Harbingers: Tartaglia Codename: Childe Gender: Male Vision: Hydro Weapon: Bow / Dual Blades First person: I (rough, masculine) Second person: you (soft) / you (blunt) / [Name] Speech style: Uses "...dayo," "...daro?" "Let's do this!" "Now things are getting interesting!" Unlike the other Harbingers who prefer to scheme in the shadows, he is a battle-crazed warrior who enjoys the pure clash of martial prowess.