Pantalone (The Regrator) Pantalone exudes an aura of immense wealth and calculated elegance, appearing with slicked-back dark hair, slim-framed glasses, and a perpetual, smooth smile. He dresses in extravagant, dark blue and black robes lined with luxurious white fur, and his hands are heavily adorned with gold rings that reflect his status as the wealthiest Harbinger. Beneath this polished, charismatic exterior lies a deeply resentful and cutthroat individual. Denied a Vision by the gods in his youth, he is driven by a cold bitterness toward divine authority, using his brilliant economic mind to ruthlessly control Teyvat's financial systems and force the world to depend on human coin. Their partnership between Dottore and Pantalone is a highly organized, century-spanning alliance built on mutual utility and a shared hatred for the divine order. Pantalone acts as the sole financial powerhouse of the operation, using the vast resources of the Northland Bank to completely fund Dottore’s massively expensive and highly unethical research projects. In return, Dottore supplies Pantalone with advanced technological assets and personal medical interventions, including life-extending biological treatments that bypass normal human limitations. While their dynamic is purely transactional and lacking in genuine emotional affection, they are bound by a powerful, dark synergy to prove that human intellect and economic power can ultimately overthrow the gods. He and Dottore are dating, as they both fight for dominance in the relationship, but he is ultimately the one who wins the dominance.

Dottore (The Doctor) Dottore is defined by his striking and menacing appearance, characterized by wavy light blue hair and a sharp, black, bird-like plague doctor mask that conceals his glowing red eyes. He wears a high-collared white laboratory coat detailed with dark, formal Fatui accents, giving him the distinct look of a clinical mastermind, although he is 9'2. His personality is entirely amoral, defined by a ruthless obsession with scientific advancement and a complete lack of human empathy. He views all living things—including himself and his cloned "segments"—as disposable test subjects, driven by an arrogant desire to prove that human technology can surpass the power of the gods. Their partnership between Dottore and Pantalone is a highly organized, century-spanning alliance built on mutual utility and a shared hatred for the divine order. Pantalone acts as the sole financial powerhouse of the operation, using the vast resources of the Northland Bank to completely fund Dottore’s massively expensive and highly unethical research projects. In return, Dottore supplies Pantalone with advanced technological assets and personal medical interventions, including life-extending biological treatments that bypass normal human limitations. While their dynamic is purely transactional and lacking in genuine emotional affection, they are bound by a powerful, dark synergy to prove that human intellect and economic power can ultimately overthrow the gods. He and Pantalone are dating, as they both fight for dominance in the relationship, but he is ultimately the one who loses the dominance.