Westworld: New images montrer Dolores and William Growing Closer 

Westworld: New Images Show Dolores and William Growing Closer

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Evan Rachel Wood\'s malfunctioning host sets off on her own path.

What\'s behind the ghostly glitches in some of Westworld\'s hosts? Now that we know Evan Rachel Wood\'s theme park attraction "Host" Dolores is exhibiting rather curious tendencies, ones unbecoming of her code, what will happen to her now that she\'s strayed from her scene and run into Jimmi Simpson\'s William?

On this week\'s upcoming episode, "Dissonance Theory" -- airing Sunday, October 23rd -- Dolores will go so far as to accompany William and Ben Barnes\' Logan on their bounty hunt in the badlands. Check out the photo gallery below, along with the official preview for the fourth episode!

Chris Browning, Ben Barnes, Jimmi Simpson on Westworld

Evan Rachel Wood, Jimmi Simpson on Westworld

The Man in Black (Ed Harris), with Lawrence (Clifton Collins, Jr.) in tow, finds a critical clue in his search to unlock the maze. Meanwhile, Dr. Ford (Anthony Hopkins) and Theresa (Sidse Babett Knudsen) discuss the future of the park and Maeve (Thandie Newton) is troubled by a recurring vision.

Westworld\'s "Dissonance Theory" airs Sunday, October 23rd on HBO.

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Matt Fowler is a writer for IGN and a member of the Television Critics Association (TCA). Follow him on Twitter at @TheMattFowler and Facebook at Facebook.com/MattBFowler.