You could always generate a random face model with real time rendering with enough details to trick any AI detector (or even human) and then you can do real time animation to orders or screen light tricks. You could also simply use some face filter on your face and these ones are really convincing these days (like on Snapchat and such).
Show me such a model.
It would be interesting to see a model completely indistinguishable from a real human in behavior, as well as real-time reflection off different surfaces, etc.
The next step would be to make a complete digital clone of a person based on surreptitiously recording them with hidden cameras. I doubt it's possible.