That is not crazy. We are going to have stars who are not human.
Think of it this way: anyone you see, including me, is 2D. You watch a film or tv program, is the person real. Of course you know he or she is but do you? It is just an image on the screen.
Look at AI photos. Not a real person but looks real. What you see in photos you will see in person.
Yes, you are right, especially thinking about this point.
We are tired of watching films and series with actors who are fictional. This for AI will be very simple to do.
I'm surprised by the videos they can make. Making films will be a matter of time.