Yeah I said to my brother few episodes ago it'd likely either that blond security guy (after his little outing with Elsie to find missing host) or Bernard are sleeper hosts acting as human. Exactly because they made couple of on the nose comments to mention their background, and few behavioral patterns (Bernard's family flashbacks seemed forced). Helps that my brother was at the time talking of the old movie of how some hosts were posing as humans, so it's something you can look into while watching, tho not fully be convinced of.
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