There are four people on my ship in Starfield and I'm too afraid to ask why

 My internet (Spectrum) was out all day yesterday so I had to... gasp... play offline video games to pass my time.  I decided to jump back into Starfield.  I was in the middle of a quest which I tidied up by killing everyone on the "Scow" ship.  Upon returning to my ship there were four people on it; three of whom I have no idea why they are there.  They've also been there a while.

 This is part of my complaints about Starfield.  Many things seem to happen or not happen and then suddenly there is a bunch of people hanging out on your ship with storylines you don't ever remember interacting with.  One would think you'd have more control over your own ship.

 On top of this is the pure irony that these folks are just sitting on the ship for whatever amount of time for some sort of trigger to do whatever is next in their chain of events.  I was jailed, had my ship impounded, and once free there they were... just hanging out.  Look at these fools.

I know why Sarah Morgan is here, but why are you looking at me random guy?  And why is there a "settler" standing by the hatch?

That's OK buddy; you just go ahead and use my bed.

 Anyways; the internet is back up so back to online gaming!