"Actors or Animatronics?"
How about a third catagory/item?
The lonesome totally dark room with a live cricket in the corner?
A whole lot of people can't begin to handle being alone in the dark, it's the scariest thing! They might get molested!
"But you are alone!"
"Yes, I know, that just makes it more terrible! I can't trust anyone, not even myself!
"Cricket!? Was it you?"
"No, you're not my type, besides that I couldn't find a milk carton high enough for me to stand on."
Change all that, "A dark room with a live cricket and a tall milk carton."
Actors and robots can't hold a drippy candle to this!