If so, I suspect they’ll be okay in a court of law — having a voice similar to a celebrity isn’t illegal.
It’ll likely cheese off actors and performers though.
[1] https://www.forbes.com/sites/roberthart/2024/05/20/openai-sa...
There's not a lot of precedent around voice impersonation, but there is for a very, very similar case against Ford
https://www.quimbee.com/cases/waits-v-frito-lay-inc
https://en.wikipedia.org/wiki/White_v._Samsung_Electronics_A....