Of course, Twitter continues to bring people with big egos to their own downfall.
Maybe only when the director's instructions are "I want you to sound like XYZ".
>The Ninth Circuit reversed the District Court, finding that White had a cause of action based on the value of her image, and that Samsung had appropriated this image. Samsung's assertion that this was a parody was found to be unavailing, as the intent of the ad was not to make fun of White's characteristics, but to sell VCRs.
https://en.wikipedia.org/wiki/White_v._Samsung_Electronics_A....
Maybe it depends on which court will handle the case, but OpenAI's core intent isn't parody, but rather to use someone's likeness as a way to make money.
(I am not a lawyer)
It would be harder to find a case if they simply just hired someone that sounds similar, but if they did that with the intention to sound like the original that's still impersonation, only it's harder to prove.
If they just happened to hire someone that sounded like the original, then that's fair game IMO.
IANAL