John Cavil
| John Cavil Number One | |
|---|---|
| Battlestar Galactica character | |
Two copies of the Cavil model | |
| First appearance | "Lay Down Your Burdens" (Part 1) (2006) |
| Last appearance | Battlestar Galactica: The Plan (2009) |
| Portrayed by | Dean Stockwell |
| In-universe information | |
| Species | Humanoid Cylon |
| Gender | Male |
| Affiliation | Cylons |
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.