I'm trying to write a flashback scene, that will probably end up being close to 2000 words long (not just a short couple of paragraphs). Basically how the scene goes is the MC and person X both do a few things and engage in dialogue back and forth... then at the end "person X's" identity is revealed and it turns out to be someone that the readers know about already. And that is supposed to be the "twist" ending at the end of the chapter to drive the plot further along. The problem is, I end up referring to this "person X" a few times and I can't really think of a good way to refer to the person without being obvious that I'm trying to hide the person's identity. The way I'm doing it right now is by giving him the nickname "Boss", because he's the MCs boss and they have a good working relationship so I figure that sort of thing is plausible. So two lines of dialogue would be like: “Hey Boss, wait up.” Larson said, running towards his fellow colleague. “You shouldn’t be here.” his boss said. --- I feel a little awkward using the phrase 'his boss said'. And I'm sure as I keep writing more of the scene I'll need to think of other ways to refer to this person other than just using the person's name. Any ideas?