Westworld is an American science fiction western and dystopian television series, based on the 1973 film of the same name. The series takes place in the fictional Westworld, a technologically advanced Western-themed amusement park which is populated by androids, which are called "hosts", while its human visitors are known as "guests".
The series features an ensemble cast, including Evan Rachel Wood, Thandiwe Newton, Jeffrey Wright, James Marsden, Ingrid Bolsø Berdal, Luke Hemsworth, Sidse Babett Knudsen, Simon Quarterman, Rodrigo Santoro, Angela Sarafyan, Shannon Woodward, Ed Harris, Anthony Hopkins, Ben Barnes, Clifton Collins Jr., Jimmi Simpson, and Tessa Thompson. Joining in the main cast in the second season are Louis Herthum and Talulah Riley, both of whom recurred in the first season, and new cast members Fares Fares, Gustaf Skarsgård, Katja Herbers, and Zahn McClarnon. Aaron Paul, Vincent Cassel, and Tao Okamoto join the main cast in the third season.