One of Westworld‘s original hosts is coming back online. James Marsden will return to HBO’s sci-fi series in the upcoming Season 4. The casting news was announced Saturday during the show’s panel at ATX Festival, which Marsden attended as a surprise guest. No one on the panel which also included co-creator Lisa Joy and executive producer Alison Schapker as well as stars Jeffrey Wright, Evan Rachel Woods, Angela Sarafyan, Aurora Perrineau and Luke Hemsworth gave any further details about what