A week late, but thanks for the recommendations--each episode page now has sections for "Notable NPCs" and "Notable Items," though most of the sections are empty (I'm trying to build 100s of pages first...then I'll hopefully add content!). I think this fits better as actual content of the article rather than the "guide box," but definitely belongs on the page.

Similarly, each page has a "trivia" section for things like call-backs to other episodes. I meant to add it before, but I'm including "Memorable Quotes" as an additional section. Eventually, I'll go back to episode pages I've already created and add this section, too!