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 appearanceBattlestar Galactica: The Plan (2009)
Portrayed byDean Stockwell
In-universe information
SpeciesHumanoid Cylon
GenderMale
AffiliationCylons

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.