The CMV

Wow.

The entity that makes the Protagonist change their view gradually over the course of the story and eventually have a new opinion entirely by the end. Unlike many other roles, the CMV can be a noun that isn't strictly a person, meaning a place, object, event, or concept. Although it could be a non-person noun that is the CMV, it often ends up being somebody who convinces the Protagonist to at least think differently for a little bit. No View-Changing Journey is complete without a CMV.