[azornathogron]

"Image rights" or "personality rights" are already a thing.

https://en.m.wikipedia.org/wiki/Personality_rights

It seems right to me that you should not be able to publish something that looks like a recording of person X doing/saying/participating in something, without either getting the consent of person X, or making it very, very clear in the published material that it is a fake. (I'm not claiming this is how the law currently works; I'm not an expert on that)

For nudity and pornography I think there is an added twist that even if the viewer knows that it's fake, there is an element of violation of the real person there. I'm not quite sure where I would draw the line about that.