John Cavil

John Cavil (Number One) is a fictional character and the main antagonist from the re-imagined Battlestar Galactica television series. He is portrayed by Dean Stockwell. In the fourth season episode "Six of One", Cavil's model number was revealed as Number One.

Background

John Cavil, aka Number One, is a humanoid Cylon model that appears as a highly rational, eccentric man in his late-sixties. The Cavils have a heavy sarcastic demeanor and a sense of humor. They take neither religion nor death seriously and are the only atheist Cylon model. A Cavil is first seen aboard the Galactica assuming the role of a priest, offering spiritual guidance, and going by the name "Brother Cavil".

One of the unique characteristics of the Cavils is the sadistic, cruel and Machiavellian streak in their personalities. The Cavils openly mock their fellow Cylons every time they attempt contact with humans, even when it is absolutely necessary.