: Terry Ives , a test subject in the original MKUltra experiments.
: He leads Project MKUltra , a secret government program aimed at developing psychic abilities in children for use as weapons. papa stranger things
When we first meet Brenner (played with chilling, soft-spoken menace by Matthew Modine) in Season 1, he isn’t twirling a mustache. He’s wearing a cardigan. He speaks in low, reassuring tones. He sits beside a frightened child in the Rainbow Room, a sterile playroom designed to feel warm. This is the horror of Brenner: he has convinced himself he is benevolent. : Terry Ives , a test subject in
: He views the children as "subjects" or assets rather than people, often using isolation and sensory deprivation as "teaching" tools. He’s wearing a cardigan
And that is the show’s most powerful closing of a door.