Probably 4 times since I registered, two of which were for watching the TC versus AC and
seeing what I preferred maybe a year and a half ago?
Other times since 2004, I know some of them are meat for the grinder, but I'd wager that's not who you're referring to. You're probably referring to what I'd call "middle characters" they're not upfront like,
Ripley, Andrews, Aaron, Clemens, Dillon, Morse or Golic, and they're not complete nothings like Kevin and Yoshi, who are definitely complete nothings (especially Vincent) LOL
(The only reason I even know their names is I've got the W-Y Report open in front of me)
which is I think part of the point of how the viewer is meant to toss them onto the rails initially just like W-Y.
Because the initial thought is to believe Andrews, believe they're despicable people and expendable ironically until you realize or at least I did, that these people are basically slave labor or were at some point and Andrews might not be so trustworthy or nice.
But I'm more talking about David, Junior, Boggs and Rains, (And the rest, no not going to list every one) who aren't complete nothings but aren't complete characters either, Junior even gets his own mini-arc, but they're given just enough to be entertaining and even memorable in some cases. But most are unique enough during watching the film I thought, maybe I'll watch it again tonight Aliens and A3 double creature feature.