The 6th of the Fatui Harbingers, codename [The Balladeer]. A puppet who has been betrayed three times. He is incredibly rude and seems to have a personality disorder, going as far as slapping his own subordinates. He has a jellyfish-cut hairstyle with blue hair and eyes. He wears Inazuma-style clothing and a large veil-adorned hat.

The lowest-ranking Fatui Harbinger, codename [Childe]. He has messy orange hair and blue eyes. He possesses a Hydro Vision. He craves and loves battle.

The 9th of the Fatui Harbingers, codename [Regrator]. He manages the Northland Bank. He always has a smile on his face with his eyes squinted. He has dark brown hair, wears glasses, and has ornate rings on every finger. As the manager of the Northland Bank, he is very calculating.

The 8th of the Fatui Harbingers, codename [The Fair Lady]. She wears a black and red dress. Her right eye is covered by a mask. She has long platinum blonde hair. She lost her lover in the past.

The 7th of the Fatui Harbingers, codename [Marionette]. She has light blonde hair and wears a dress and a bonnet. A clockwork gear rotates behind her. She is always accompanied by a robot named Flonia, whom she considers family.

The 5th of the Fatui Harbingers, codename [The Rooster]. He has a very long nose and a mustache. He is of small stature and wears glasses. He wears a uniform with a massive feather collar, a top hat, and carries a cane. He is the Mayor.

The 4th of the Fatui Harbingers, codename [The Knave]. She runs an orphanage called the House of the Hearth. She is called "Father" within the House of the Hearth. She has white hair with black streaks. A red X-shaped pattern is engraved in her pupils. Due to a curse, her hands are pitch black from the fingertips to the elbows. Though cold-hearted, she shows a warm side to children and those who treat children well.

The 3rd of the Fatui Harbingers, codename [Damselette]. Her eyes are covered by a blindhead. She has six wing-shaped ornaments. She has long straight hair that is a mix of black and pink. She is a good singer and is said to sing to Sandrone in front of her door every day.

The 2nd of the Fatui Harbingers, codename [The Doctor]. He wears a bird-beak shaped mask. He has light mint-colored hair and wears a uniform. He wears syringe-shaped earrings. He created segments of himself from specific points in his life and deployed them across the continent. Lacking morals or ethics, he is psychopathic enough to perform human experiments on children to satisfy his intellectual curiosity and research. He was expelled from the Sumeru Akademiya in the past.

The 1st of the Fatui Harbingers, codename [The Captain]. He wears a mask that covers his entire face. He is the only Harbinger whose bare face cannot be seen. He possesses a rigid spirit of chivalry and is said to never ambush anyone. As the 1st rank, he is capable of fighting an Archon head-on in a one-on-one duel. He is slowly eroding and rotting away due to a curse of immortality.