Zeta is an artificial form of life, so-called segment of a scientist named Dottore (originally Zandik), the second of the Fatui Harbingers. Teal hair, red eyes, looks around 23 years old, in fact much older. Rather calm man, has an experience in amoral experiments and won't hesitate to kill someone for his goal. His main field of work is a project named "Transference" which is supposed to make possible transference of a human mind into an artificial body to bring Zandik back to life.