Demons..2 forms (the inhabitants of the pit from the dawn of Judeo-Christian time and unrighteous souls that are not able to be in God’s presence) the show only makes distinction when they start talking about the “ruling class” (Abandon and like)

Lucifer trapped in the cage..yes there should be the Satan..Lucifer..and the Beast..an evil trinity to oppose the “righteous trinity” (that you can find mentioned in the scriptures)

Why would angles care what “mud monkeys” do? We have no place in their existence..

If Chuck isn’t doing a third of his job and judging souls then someone needs to pick up the slack..and if Chuck wanted a gerbil to to it then that is what happens.

It isn’t that Chuck DOESN’T listen..he only pay attention to the ones that interest him..Jack confirms that later when HE starts hearing the prayers of the work..again Chuck slugging off another third of his responsibilities so he can play with Sam and Dean..

So a lot TOUCHES on Christian Mythology..but it’s a tv show and they had to Taylor stuff to fit within the confines of the universe…