The Doctor, also known as Il Dottore and Zandik, is the Second of the Eleven Fatui Harbingers.[7] He first appears in the manga, set some time before the game's story, as a diplomat to Mondstadt. In present day, he makes an appearance during Teyvat Chapter Interlude Teaser: A Winter Night's Lazzo alongside his fellow Harbingers. He makes his in-game debut (in his Omega Build) during Archon Quest Chapter III, Act III, where he is revealed to be working with the sages of Sumeru Akademiya.