The series is based on a cult classic movie from the '70s that was written and directed by Michael Crichton, the author of "Jurassic Park" and "The Andromeda Strain," so it has a pretty solid pedigree.
The HBO series was created by Jonathan Nolan, Christopher Nolan's brother, and boasts J.J. Abrams as an executive producer.
The way Westworld is supposed to work is like this: Guests experience the wild west thanks to a realistic setting and lifelike robots — known as "hosts" — that are programmed to give them a realistic experience where ~they~ are the star.
Dolores Abernathy (Evan Rachel Wood) is one such host. In the artificial world of Westword, she's a rancher’s daughter with an idyllic life, but as things go wrong, she begins to realize that her entire existence is a lie.
next slide will load in 15 secondsSkip AdSkip AdJames Marsden of "X-Men" fame plays Teddy Flood, another host who's character is a new arrival to Westword's frontier? town.
He's charming, and looks like he'll be one of the main host characters in the show along.
Another major host is Maeve Millay (Thandie Newton), a beautiful and smart madam with "a genius for reading people and a knack for survival."
Hosts in Westworld have entire simulated lives — but do they matter?
Hector Escaton (Rodrigo Santoro) is Westworld’s “most wanted.” This bandit host embraces his role as a "predator," and looks to be a dangerous player out for himself.
next slide will load in 15 secondsSkip AdSkip AdSomething tells us that these hosts maybe don't love the control that their creators have over them and all of Westworld.
Clementine Pennyfeather (Angela Sarafyan), was designed to be beautiful and intriguing, and is therefore "one of Westworld’s most popular attractions." So, yeah, guests can sleep with robots.
Armistice (Ingrid Bolsø Berdal) is a tough and ruthless bandit in league with a host of other bandit hosts harassing Westword.
Not much is known about Ed Harris' character, the Man in Black, other than he's pretty much pure evil and coldly terrifying by design. One can only imagine what happens if he goes off-script.
Anthony Hopkins plays Dr. Robert Ford, the founder, creative director, and chief programmer of Westworld. He's described as brilliant but stern, with an "uncompromising creative vision for the park."
next slide will load in 15 secondsSkip AdSkip AdJeffrey Wright, who you may remember from the later "Hunger Games" movies, plays Bernard Lowe, the head of Westword's Programming division.
Dr. Ford and Lowe will be challenged when their creations run amok.
Sidse Babett Knudsen plays Theresa Cullen, and as Westworld’s head of Quality Assurance, it's her job to make sure that nothing goes wrong in the park. Based on the trailer, it would seem that she failed — big time.
Elsie Hughes (Shannon Woodward) works in the Behavior Department looking for potential problems or troubling quirks among the hosts.
Lee Sizemore (Simon Quarterman) is the head of Narrative at Westworld. He's in charge of creating the storylines that guests experience while they're in the park. He's also a bit of an ass.
next slide will load in 15 secondsSkip AdSkip AdBen Barnes plays Logan, a longtime customer who really embraces hedonism when he's a guest at Westworld.
Jimmi Simpson's William, meanwhile, is a first-time guest at Westworld. He may have chosen a bad time to make his first visit.
"Westworld" is set to premiere on Sunday, October 2 at 9 p.m. EST.
You can check the trailer out below: