Well, *anything* played by Chris Walken later just scares me on general principle.....:D
The bright side is that the *good* angels who did not rebel understand and accept God's will for us and "watch over us".
I absolutely believe in demons.
Years ago I read a couple of books on comparative mythology [one of which was "Angels, Aliens & Demons" and the other was called "Men In Black", if memory serves.
Both books focused on the possibility that *all* world culture's mythologies of devils, fairies, elves, etc. were based on the actual existence of demons.
Demons are/were smart to to "shapeshift" to fit any given particular culture's mythological bent and technological progress.
For us, they appear as 'wise and powerful aliens' from other planets.
For the Irish, they were fairy of the Sidhes...to the Indians, they were great spirits...and so on and so forth.
If that's what they're doing, it's brilliantly evil, really.
But then we have this;
Do not neglect to show hospitality
to strangers, for thereby some have entertained angels unawares.
Hebrews 13:2
I'm sure I'm not the only person who's ever had a seemingly random "stranger" do something spectacularly kind or generous for no *apparent* reason...a stranger who made us feel awed or peculiar in their presence.
Makes ya wonder....
Heh- why do you think when angels show up in the Bible, they always start out with 'fear not!'
Angels are cool, actually. We have them all over the place. We've never seen one, either with our eyes or in a vision, but we see the favor and blessing of God over us all the time. We asked the Lord for them, and He answers our prayers.
My favorite story about angels is when they come to visit Abraham and rescue Lot, right before Sodom is judged.
When angels manifest, it's best to pay attention.
What makes you think angels don't have free will?
The Bible says many angels chose to follow Satan into rebellion against God. If they didn't have free will, how were they able to make that choice?