Antoine Costa is a main character in Season Two of HBO's Westworld and is described as a "tech expert with an objective perspective". He is played by Fares Fares.


At some point Antoine Costa became a Technician working for Delos Incorporated.

Season Two

"Journey Into Night"

Antoine Costa is part of the Delos Extraction Team investigating the gala massacre two weeks after the event. Strand orders him to find out what killed a Ghost Nation Host; Costa notes that it is not a sterile environment out in the field but Strand tells him that they all have to make sacrifices.

Costa scalps the Host, finding the image of The Maze underneath but has no idea what it is. Using several tools, Costa removes the core processor unit and plugs it into a tablet reader. The recording shows the Host was killed by Dolores Abernathy eleven days, nine hours ago. Costa asks who she is; Bernard Lowe replies that she is the rancher's daughter from Sweetwater. Costa realizes that she is supposed to be the "cheery welcome wagon" and that the Hosts should not be able to change their core character profiles.

While the Delos team investigates an anomaly reading that turns out to be a Bengal tiger who has crossed the borders from Park 6, Costa gets readings that all the Hosts are clustered together in the Western Valley. Strand decides to go and check out the area. Upon arrival, they find that the entire valley is flooded. Costa directs the team's attention to the location of the Hosts – they are all seemingly drowned in the water.

"Virtu e Fortuna"

Costa followed the Extraction team into the Mesa Hub from one of the train tunnels.


Costa is shown to be very loyal to Strand, doing everything he can to gather information about the hosts and their data. He apparently has experience with hosts, and seems to prefer to work with hosts in a sterile environment, proven by the scene where has to investigate the brain of a member of Ghost Nation.




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  •  Antoine is a French given name that could mean beyond praise or highly praiseworthy.
  •  Costa is an Italian, Portugese, Galician, Spanish and Catalan surname.