The Nogitsune

The Nogitsune is a dark Kitsune who serves as the main antagonist in the second half of Season 3 of the MTV series Teen Wolf. He is mostly portrayed by Dylan O'brien.

Biography
The Nogitsune is a dark Kitsune and an amazingly evil being. It possesses people and later takes the form of the person it possessed (as seen after he took possession of Stiles).