This was as covered in Wired
Professor Johanna Gibson

Johanna Gibson, Professor of Intellectual Property Law at Queen Mary has been featured in the Wired on the law around advances in computing power and how Deepfake technology could mean that shows like The Simpsons could replace its voice cast with AI. Gibson said: "If The Simpsons used a deepfake Homer to advertise chocolate bars, it could be seen as a personal endorsement by the actor Dan Castellaneta. The law could also vary even between different characters played by the same actor on the same show."

Please read the full Wired article here.