John Cavil

John Cavil (Number One) is a fictional character and the main antagonist from the re-imagined Battlestar Galactica television series. 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. 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 which goes above and beyond any anti-human sentiments the other Cylon models might share. Cavils openly mock their fellow Cylons every time they attempt contact with humans, even when it is absolutely necessary.

Viewing death as a nuisance, Cavils, however, are extremely displeased with pain (placing the blame on the Final Five). This view fuels the idea that Cavils wanted death to the humans to be as quick as possible, but were unprepared for the aftermath. Their attitude towards mankind's mortality, rather than irrational hatred, derives from their overall lack of knowledge about absolute death and the consequences that it carries. As revealed on Battlestar Galactica: The Plan, the Cavil that was stationed in Caprica learns from Samuel Anders the motives for the resistance; that humans do not leave anyone behind, even their dead. Respecting their resilience, the Caprica Cavil agrees with Caprica Six and Sharon Valerii (Boomer) to abandon the Colonies. Disappointed with the other Cylon models after failing to accomplish anything through boycott and sabotage, the Galactica Cavil fails to learn any lesson. As they are discovered and airlocked from Galactica, Galactica Cavil swears to "box" Caprica Cavil for his insubordination and is indicated to be the same Cavil that is the main enemy of season four given his plans to destroy humanity once and for all once he resurrects.

It is later implied in the series that the Cavils, akin to their creators, lack superhuman strength, and are actually the least likely to defend themselves. It is also implied that the Cavil who led the Civil War, and who killed himself in the CIC when he realized he was losing and had no chance of winning, is the resurrected Galactica Cavil. Like the Simons and Number Threes, and in contrast to Leobens, Dorals, Number Sixes, and Number Eights, Cavils appear to be relatively uncommon and never appear in large groups.

The Cavils' superior awareness of all situations (attributable to their being the only human model Cylon with full knowledge of their origin) and uncanny manipulative traits make their series the de-facto leaders of the Cylons. However, their vast superiority and manipulations over their fellow Cylons goes beyond comprehension, as they manage to annihilate the Twelve Colonies and repeatedly attack the survivors without hurting the Final Five, and ensure their survival only to make them 'the ones who suffer the most', and basically carrying on with the annihilation of billions only to teach their creators a lesson.

A comment made by Sharon "Boomer" Valerii indicates the Cavils are against the idea of the Cylons reproducing themselves biologically, which makes sense given their distaste for human traits as well as lack of faith in the Cylon god, whose commandments include, "Be fruitful." Ellen Tigh also mentions that the idea that the only hope for the future of the Cylon race might be 'messy biological reproduction' is too much for Cavil.

Cavil is very insistent the Cylons not seek out or discuss the Final Five models. He also actively tries to prevent D'Anna from learning their identities, even threatening her at gunpoint in "Rapture". After she sees their faces, he boxes her before she can tell anyone, while claiming support from the other Cylons. The reason is he knows the identities of the Final Five and doesn't want them exposed (he’s waiting until they've learned their "lesson.")

Character biography
Two versions of Cavil appear at the end of the second season in the episodes "Lay Down Your Burdens". His first appearance is as a religious counselor provided by the fleet with whom Chief Tyrol meets after he physically attacks deck hand Cally Henderson when she awakens him from a recurring nightmare. Tyrol states he dreams of killing himself, and Cavil suggests Tyrol subconsciously believes he is a Cylon sleeper agent like his former girlfriend Sharon "Boomer" Valerii.

Cavil assures Tyrol he is no Cylon, joking "I've never seen you at any of the [Cylon] meetings." Despite posing as a priest, Cavil is critical of the Lords of Kobol, telling Tyrol praying to them will not help. Cavil states humans have been given the choice to decide their own destinies and the Lords play no part in their affairs. Cavil later meets with President Laura Roslin and offers prayers to the Lords of Kobol for Roslin's success in her Presidential campaign against Gaius Baltar.

A second version of Cavil appears among the survivors from Caprica after Kara "Starbuck" Thrace leads a rescue mission to the planet. During a Cylon attack, the Cylons suddenly cease fire and withdraw. The Cavil among the group announces the Cylons have left Caprica and the group has been spared. Upon their return to the fleet, Chief Tyrol spots the second Cavil disembarking from a Raptor, and alerts the guards he is a Cylon. Caprica Cavil admits to being a Cylon with a message for their leader. Admiral Adama has the man taken to the brig. Meanwhile, Galactica Cavil is arrested and emphatically protests his innocence until he sees another copy of himself in the brig. He simply says "Oh, well.... okay then," and calmly enters the cell.

Caprica Cavil gives a message to Roslin, stating the Cylon attack on the Colonies, as well as pursuit of the fleet, was an error. Cavil further explains two Cylon heroes, the Number Six model known as Caprica Six and Number Eight (that version of Sharon "Boomer" Valerii that was stationed on Galactica and shot Admiral Adama), have convinced them the war is futile. He states though the Cylons are machines, they strive to be the best machines possible and believe they will one day rise above their creators. Their first step had been to replace the humans, and they believed they could do this by hijacking their lives and taking their places. They have determined however, they have become no better than the creators they despise and offer a reprieve from the genocide, suggesting human and Cylon go their separate ways.

Adama and Roslin furiously reject the idea, stating they simply cannot walk away after the Cylons have destroyed their home worlds. Adama asks the two Cavils whether the new plan comes from their God, and Cavil says "there is no God. Supernatural divinities are the primitive’s answer to why the sun goes down at night or at least that’s what we’ve been telling the others for years", although he acknowledges neither position can be proven. Despite the apparent sincerity of the message, and the offer of truce, Roslin orders both Cavils to be airlocked, suggesting they will rapidly discover whether or not God exists. The actual disposal through the airlock is not shown on screen but is shown in The Plan. Galactica Cavil reveals that there is a Resurrection Ship nearby and, given his comments, his resurrected self is likely the one that leads the Civil War.

At least two Cavil versions are present on New Caprica during the Cylon occupation. The New Caprica Cavils display particularly venomous anti-human sentiments, taking great pleasure in taunting human prisoners and shrugging off the human casualties of insurgent suicide bombings. One Cavil in particular takes pleasure in blackmailing Ellen Tigh for sexual favours in exchange for releasing her husband Saul from captivity and not killing him. Saul Tigh is eventually released having lost his eye.

Cavil is one of three Cylons to board Galactica to meet with William Adama and Laura Roslin about The Eye of Jupiter. He is willing to hand Gaius Baltar over to the humans as part of a deal for the relic, "to sweeten the pot." Upon returning to his Basestar, Cavil feels annihilation of Galactica is the best option with the standoff, because Cylons are machines and can wait out the human fleet.

Cavil finds D'Anna in the temple in Rapture and, realizing she has come to discover the identities of the Final Five, he orders her at gunpoint not to proceed any further. However, Baltar shoots him from behind and D'Anna finally sees their faces. However, she loses consciousness and dies shortly thereafter.

Cavil is present as D'Anna resurrects. He states all members of her line, the Number Threes are fundamentally flawed and suffer from messianic delusions. He claims he and the other Cylon models agree the Number Threes must all be "boxed" — deactivated with their memories placed into cold storage. The boxing is carried out by Cavil.

Cavil takes a major role in season four, as the leader and head negotiator of one of the two warring Cylon factions. In "Six of One", Natalie, the leader of the opposing faction, demands he stop lobotomizing the Raiders and reveals she has restored free will to the Centurions. The Centurions then slaughter Cavil and the other Cylons in the room.

Cavil resurrects in "The Ties That Bind" and claims that, although he does not agree with Natalie and her followers, he will respect their wishes. The Number Twos, Number Sixes and Number Eights (except Boomer) demand the Threes be unboxed to end the deadlock. Cavil seemingly acquiesces but, in reality, sets a trap to destroy Natalie and her followers. Boomer starts to have second thoughts about going against her fellow Eights, however, Cavil, who has developed a relationship with her, encourages her to embrace her true nature as a machine and abandon her emotions.

Natalie survives the attack and a civil war ensues. D'Anna is unboxed by Cavil in "The Hub". Cavil hopes she will be able to mediate peace between the warring Cylon factions, but she kills him and escapes with Helo and a Number Eight.

In "No Exit", it is revealed Ellen Tigh was involved in the creation of Cavil, modelling him after the image of her own father, John. Cavil was the first of a new generation of Cylons, and he assisted in the creation of models Two to Eight. Because Ellen Tigh favored the Number Seven (Daniel) model, Cavil's jealousy grew and he had the entire line destroyed by tampering with the amniotic fluid housing the Daniel copies. Cavil was also responsible for the Final Five being banished to live as humans. His rage fueled in part by the Final Five condemning him to an existence complete with all of humanity's weaknesses, and realizing the Five would try to avert another war against the humans, he killed them and when they resurrected, he erased their memories and left them among the humans so they could witness the eventual genocide of the human race. Cavil manipulated his "parents", the Final Five, to be among those who suffered the most.

It was also speculated (although never explicitly stated) Cavil was the one who programmed models Two to Eight to not seek out or discuss the Final Five. This theory has been confirmed in an interview with writer Ryan Mottesheard: "John/Cavil is the only one who knows the Final Five because he corrupted the programming of the other six models to never speak of the Final Five or search for their identities. Obviously, if they did, then his little house of cards topples, which is why he boxed D’Anna."

After Ellen Tigh is poisoned by her husband, she resurrects aboard one of Cavil's ships and is held prisoner there for 18 months (No Exit). Ellen regains the memories Cavil had erased when she dies and downloads into a new body. Later, when the Cylons' resurrection capability is destroyed, Cavil attempts to acquire Ellen's knowledge of the technology (she and the other Final Five being the ones who developed the ability to resurrect). Cavil plans to kill Ellen and recover the information from her brain, however, Boomer seemingly rebels against him and helps Ellen escape. It is later revealed, however, Ellen's escape was orchestrated by Cavil to sneak Boomer onto Galactica in order to kidnap Hera Agathon.

It is stated by Ellen in No Exit that Cavil is a sadist who enjoys playing mind games with the Final Five as evidenced by him taking Galen Tyrol's confession, a copy following Sam Anders in the resistance, torturing Tigh on New Caprica as well as blackmailing Ellen into giving him sexual favors. He is also responsible for her being placed on a ship as it was leaving a destroyed Colony as part of his manipulations of the Final Five.

Cavil fully embraces his identity as a machine and believes humans are inherently lesser than Cylons, dismissing Ellen's arguments that humans, for all their imperfections, have something real and precious: Love, compassion, creativity, emotion.

The character of Cavil has echoes of the story of Oedipus. Alan Sepinwall of The Star-Ledger sees Cavil as "a cruel hybrid of the Biblical Cain (he murdered his brother, and his mother is fond of apples), Oedipus (has sex with his mother, though the eye he puts out belongs to his father) and a kind of Pinocchio in reverse."

Cavil wants Hera as he sees her as the only chance for the Cylon race to continue following the destruction of Resurrection. After Boomer helps Hera escape, Cavil personally leads a boarding party onto Galactica to retrieve her. In Galactica's CIC, Cavil is captured while a Simon and Doral with him are killed by the bridge crew. Cavil takes advantage of an explosion to take a gun from a colonial marine guard, after knocking him down, and takes Hera hostage. Baltar lowers his side arm and tries to convince Cavil to end the cycle of violence and end the stand off on the bridge; Cavil begins to waver from Baltar's speech, but he refuses — without Hera, he believes his race will end. Tigh offers Cavil resurrection technology if he releases Hera and stops pursuing humanity. Cavil agrees and calls off his troops, saying he's a man of his word. Cavil is impatient and sarcastically tells the Final Five Cylons to hurry up their discussions as they are "keeping two civilizations waiting". As the Final Five come together to generate the data necessary for resurrection technology, Tyrol, discovering Tory was responsible for the death of his wife Cally, breaks the link and kills her. Cavil realizes the secret of resurrection has died with Tory, just as the Cylon Colony is hit by a barrage of Galactica's remaining nuclear warheads fired by Racetrack's Raptor, which knocks the Colony out of orbit and dooms it to be swallowed by the black hole. The surviving Simon and Doral, deciding the whole process has been a trick, recommence the battle with the humans and are gunned down. Cavil shouts "Frak!", puts his gun into his mouth, and commits suicide.