As Westworld transforms your living room yet again into a madcap saloon overrun by robots, firefights, and mystery, you'll notice one of the show's strongest assets is its cast. Hollywood heavyweights Anthony Hopkins (as Dr. Robert Ford), Jeffrey Wright (Bernard Lowe), Ed Harris (the Man in Black), and James Marsden (Teddy Flood) have all given heft to the HBO sci-fi saga, but you'll spot many more familiar and not-so-familiar faces as the drama unfurls, ones that will make you ask: Who the heck is that and what are they doing?
Lisa Joy and Jonathan Nolan's ensemble, like many of TV's more ambitious projects, offers a mix of underrated and rising talent, all worth knowing more about. To keep track of everybody, consult our running list, which details the players you'll see sporting Stetsons, bonnets, and future-chic corporate garb, grouped by the season in which they first appeared. We'll be updating this after every episode, so stay tuned.