I guess you worry about stuff like person A looks like celebrity person B and sells their image for, say, frosty frootloop commercials. As long as A is not impersonating B, ie. claiming to be B, I can't see a problem. "Hi, my name is Troy McClure, you may know me for looking like Serena Williams." I guess it will be the decade of the doppelgänger agencies, like in Double Trouble ;) [1]

[1] https://www.imdb.com/title/tt0087481/?ref_=nv_sr_srsg_1_tt_8...

Same situation as today: if you have a lookalike out there who does pornography, and somebody you know runs across it, they'll think it's you and not much you can do about that except explain.

There have been many cases where a company wanted to hire say, actor X to voice their commercial, actor refused, so they hired someone else with a nearly identical voice, the original actor sued and won(!!!!!) because apparently it's their "signature" voice.

I disagree because obviously that means the other person has no right to make money using their voice now, at no fault of their own?

But yeah I'd imagine you'd have the same problem here - you can't generate a picture of say, Brad Pitt even if you say well actually this isn't Brad Pitt, it's just a person who happens to look exactly like him(which is obviously entirely possible and could happen).