Character
Number Four
Number Four in Battlestar Galactica (2003), played by Rick Worthy.
Number Four appears as Simon, a mild-mannered doctor who turns up in ordinary corners of colonial life—competent, soft-spoken, easy to trust. He listens well, tends to the sick and injured without fuss, and seems entirely unremarkable, which is precisely the point of a Cylon built to pass.
Rick Worthy plays the model's quiet decency completely straight, giving Battlestar Galactica one of its calmest performances in a show built on paranoia. That stillness is the trick: you believe the bedside manner before you remember what it's hiding, and the show gets its tension from how easily you forget.
Number Four, or Simon O'Neil, was a model of Humanoid Cylon. The initial prototype was developed not long after the end of the Cylon War in 1960, by a team of Thirteenth Tribe survivors dubbed the "Final Five" along with their first prototype Humanoid Cylon, a Number One.
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