'Westworld' Season 1 Spoilers: James Marsden Reveals How He Fulfilled A Childhood Fantasy On The Show

"X-Men" star James Marsden jumped at the chance to be a part of HBO's new sci-fi series "Westworld" because it gave him a chance to live a childhood dream. Marsden told Stuff that being on the set enabled him to live "out that eight-year-old fantasy of being a cowboy gunslinger again – putting on chaps, a cowboy hat, a gun and riding horses." But what the actor really came to appreciate about the show is not just the elaborate Wild West costumes and setting. Marsden said the show will make viewers question humanity -- or the concept of humanity -- as they try to figure out who are really humans and robotic "hosts." "It's kind of personal," the actor said.