[minimaxir]

They don't own the voice, but they own the vocal performance, which ends up being a meaningless legal distinction in practice.

It's one reason why VAs rarely take fan requests for a character they voice.

[dylan604]

If they are using their real voice, then they kind of screwed themselves. If they are performing a character voice, then at least they only lose out on that kind of work.

I'm guessing contracts will need to be updated to say that a character's voice made from AI can't be used so a completely different production cannot say they have the actor attached for publicity purposes.