Jimmi Simpson says his Westworld role was 'frightening' to take on

Actor Jimmi Simpson is used to playing "creepy guys," as he describes, in movies and TV shows. But his latest role on HBO's hit show Westworld finds him taking on something completely different. That scared Simpson.  

"William is honest and good and hopeful," Simpson says, of his Westworld character. "These are just not adjectives to decribe my roles, generally." 

Simpson admits to being nervous, but excited, to play William. He adds: "There was no bag of tricks, I have no experience playing real human emotions on film the way William unfolds himself — I wasn't sure what I would do." 

Now many who have tuned in all season probably has one major question/theory when it comes to Simpson's character: Is William actually The Man in Black?

With the finale airing this weekend, this is all Simpson had to say to the show's fans: "All the answers will be revealed Sunday."