https://readthrough.com/ It essentially gives the opportunity to set up online table reads, be it contacting it's registered actors (mostly amateur, but some are quite talented.) The lines of each role are read individually, be it by one of the afore mentioned actors (you have to send a request via the site, and await their response, but you can send multiple requests at once,) record voices yourself, or use the sites bots. The bots have a variety of voices and tones, but are often clunky, and, well...robotic. But they're useful for smaller roles or to keep roles warm while you await to hear back. But using the actors is far more useful and fun. It doesn't have a ton of traffic or marketing, and per the developer will ultimately end up a plug in for a venture called Writers Duet, a screenwriting software geared toward collaborations, but as is, it's a Nobel and useful concept to bring together writers and actors, and beneficial to both.
Final Draft also has a version of the voice type bots built in so you can have your script read out loud - great for proofreading! And there's also an IOS app called Tableread that does something similar too, I've downloaded but not tried it yet.
Do these ones allow you to have actual people read for you or is it automated voices? Because read through has both. The actors aren't employed by the site, they register just like the writers (who can also register as actors) can do. Some have some degree of screen experience, others experience is limited to school plays or community theatre, but that's pretty much what you'd get with a live table read. Trouble is that being completely free, there's no obligation, so nobody has to accept, and if they do, they're not obligated to complete. You can also use your own voice or have people you know do it via a link generated for the chosen role or roles. But all and all, I think it's very cool. And don't get me wrong, I'm not a marketer for the site, I just think it's incredibly cool, and would like to generate more traffic to it, for the purpose of some new blood.