I know that actor! von Firefox-Benutzer 12543976

This addon hightlights the movies that are on your watchlist on the page of an actor.
It also works for directors, writers, cinematographers...

The first time you navigate to a actor's page, it can take a few seconds to load the movie id's. After that, the movie id's are cached, and the next time you visit the page of a person, it should load immediately.