Agreed that the last thing the dev should be thinking about is VA... there's so many other things that should be improved first... but if they're dead set on int for whatever reason, the AI tools are getting pretty good, so I'd look into those before spending a lot of money (that would be better spent elsewhere) hiring actors.
Fixing the dialogues should of course be a priority, but the game could use more variety in music (not super important) and of course better quality in the visuals... The "sprites" thing is quite lazy, tbh, as well as having so many screens being the same repetitive boring background... specially considering the game is set in a restricted environment.
Anyways, the story is pretty good and the writing is also solid (minus all the techincal issues), but yeah, I wish the overall quality was better.