That's a really cool idea. You should pursue it.
* No knowledge of acting or actors; never even been to LA
* Never worked with mocap technology
* Never worked with video game development
* Never worked with voice or streaming services
Maybe I can pick up some of this as a hobby. Anyway it's not really a novel idea (like I said, you can read this exact concept in The Diamond Age, a very popular novel among the tech crowd) so I'm sure someone is trying it. Who knows, we'll see in a few years!