As video game worlds get more expansive, some game studios are experimenting with AI tools to give voice to a potentially unlimited number of characters and conversations. It also saves time and money on the “vocal scratch” recordings game developers use as placeholders to test scenes and scripts. The response from professional actors has been mixed. Some fear that AI voices could replace all but the most famous human actors if big studios have their way.
Source: Some video game actors letting AI clone voices. They just don’t want to be replaced