With Westworld’s fourth season teaser trailer out, we thought we’d revisit the characters we love and love to hate from HBO’s sci-fi series. In case you’ve never watched it, Westworld isn’t your typical amusement park. Intended for rich vacationers, the futuristic park — which is looked after by robotic “hosts” — allows its visitors to live out their fantasies through artificial consciousness. No matter how illicit the fantasy may be, there are no consequences for the park’s guests, allowing for any wish to be indulged. Eventually, the hosts get ou of the park into the “real” world, causing chaos. Westworld is based on the 1973 Michael Crichton movie of the same name and features an all-star cast including Evan Rachel Wood, Ed Harris, Jeffrey Wright, Thandiwe Newton, Tessa Thompson and Aaron Paul.