Everything you need to know about HBO's next big show - 'Westworld'

John P. Johnson/HBO

"Westworld" looks like it's gonna be great.

It's still a long time until "Game of Thrones" comes back (though star Maisie Williams is already teasing that "sh-t gets REAL" in the next season), but HBO has another huge show coming up, and it looks like it's going to be wild. 

The new series, "Westworld," is a mixture of cerebral, science fiction horror and western action and intrigue. It's set at some point in the future, where robotics and artificial intelligence have advanced to the point where they can be used for immersive entertainment. Westworld is, for lack of a better word, a theme park. Visitors to Westworld can experience the wild west, in an automatic, authentic, but ultimately safe setting. 

Until there's a glitch in the system and something goes very wrong. 

HBO recently released 20 images from the series, debuting October 2. Though we're still a while away, here's everything you need to know about the, uh, world of "Westworld," and a couple of the key players.