Mandy Moore as Elderly Rebecca on This Is Us

This Is Us Season 3 concluded with an elderly Rebecca in a bad way. She was not recognizing her son, Randall, leading to concerns from fans that she was about to die. <P><P> "Possibly this is someone near the end of their life experiencing a lack of awareness and confusion that comes with extreme old age," showrunner, Elizabeth Berger tells <A HREF="https://www.glamour.com/story/this-is-us-season-three-finale-questions-answered?mbid=synd_yahoo_rss">Glamour.</a>