When I was a kid in the mid 80s, I got a racing game (Revs) that let you enter names in for the CPU racers. Looking back it seems ridiculous but I remember it being such a thrill to pretend I was racing against "people" I knew. Even that was exciting to me, so what's happening now is absolutely mindboggling(!)

The names example calls for more imagination though. Yeah it's mind boggling, but I wonder if the effect will be about the same or that much more.

So maybe the "uncanny valley" could even ruin the effect? Some of the samples so far are really good though, so maybe we skip that stage..

Before movies, why not insert friends into your video game?

Or how about creating a company that sells profiles each of which would be a collection of high quality photos/videos. In turn if you have a video game or movie you can get a random actor with the body you want and swap the face with the face you want?

Or even better create a service where individuals can upload their own photos which they can get some of the profit if their profile is used.

Another Idea make Bad Actors more convincing with "stock reactions". Track the face of your actor copy Anthony Hopkins reaction face over it and than use deepfake to get the original face back.