It's fraud to use it for financial gain, however it's not illegal to directly copy someone's likeness for non business uses.
You can legally make videos of people saying or doing things that hadn't, and as this technology gets more advanced we will see more of its effects. Politics will be very tricky when you can upload a video of Presidents or candidates saying literally anything.
Not only that, but make someone commit a crime on camera? Even if you aren't trying to get them prosecuted, it could lead to severe issues. You could ruin someone's career by making them scream slurs at someone in a Starbucks or make videos of them being abusive to their families.
You can argue its slander and libel, but where does that fall into AI? What's the line? What if I make a joke song with someone's voice? What if I make a joke video that has them doing horrible things? What's the line?
Slander and libel laws don't have clearer distinctions when it comes to AI voice and video synth
I also think there should be distinctions here. This isn't just slapping someone's face onto an ad with a fake quote, this is creating a video of them saying something they never said using a technology that doesn't just inch closer, but makes leaps and bounds towards being indistinguishable from reality