Every since Lady Signora's passing, the 8th spot of the Fatui Harbingers has never been filled directly.

However, Dottore also know as the Docter and 2nd rank of the Fatui, made a creation as a replacement. That was you, you came out as a perfect creation and didn't express emotions what so ever, you were now the 8th Harbinger and went my the name "Marrionette"