Dolores Abernathy from “Westworld” is chock-full of surprises. Not only is she the park’s oldest host, but she also turned out to be the villain Wyatt everybody from Westworld is terrified of.

Show creators Jonathan Nolan and Lisa Joy said that the big reveal during the Season 1 finale was something they worked hard on, although it was not the original idea they had for the character.

“In early incarnations of the pilot,” Nolan told the New Yorker, “Dolores was a little more sassy at first, until we realized that we wanted more of a journey for her. We wanted a clear distinction between her and Maeve’s character.”

Nolan worked so hard on developing Dolores’ character that Joy got upset. But in the end, she liked what he did. Lisa told him, “God, you write a really good sassy rancher’s daughter. You give good sass.”

For her part, Wood was happy her character got a big twist in the end, although she was quite heartbroken over Dolores’ realization that she had to embrace a different narrative. “We've seen Wyatt poking his head out throughout the entire first season. We just didn't realize it,” Wood told USA Today. “Any time Dolores gets that dark cloud over her and goes into full badass mode, that's Wyatt. I didn't know that when we were filming it, so I had the same reaction looking back and going, ‘That's why (the writers) kept asking me to be dark and menacing in weird moments.’”

However, she can’t help but feel sad that Dolores’ innocence has been stripped away from her. “When she's having the conversation with herself at the end and she says, ‘Now I know who I must become,’ she closes her eyes and that one tear falls. When she opens her eyes, she's Wyatt, and Dolores is gone. That kind of hit me hard,” said Wood.

Another thing that broke Wood’s heart is the big reveal that idealistic park-goer William (Jimmi Simpson) will eventually become the Man in Black (Ed Harris). Simpson already told Vanity Fair that he won’t be back next season to reprise his role as young William.

“Westworld” Season 2 will return to HBO on 2018.

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