Cylons (TOS)

This article describes the robotic creations of a reptilian race from the Original Series. For the Cylons of the Re-imagined Series, see Cylons (RDM). For Cylons depicted in the spin-off Galactica 1980, see Cylons (1980).

The Cylons are entirely composed of robots, originally the creation of a reptilian race that were also known as Cylons.

Cylon Centurions crash Sire Uri's party (Saga of a Star World).

Both types of Cylons shared a home, also known as "Cylon", prior to the beginning of the Thousand Yahren War (Saga of a Star World) in the Cyranus Galaxy (The Long Patrol).

Reptillian Cylons

A depiction of a reptilian, serpent Cylon from the "Experiment in Terra" television movie.

Originally, the reptilian, serpent (Experiment in Terra Telemovie) Cylons created a race of robots to service their needs (Saga of a Star World). According to Apollo, the Cylons discovered humanity. Having determined humans to be the most practical form of creature in their system and crafted robotic creations that mimicked their form. However their creations were made bigger and stronger than humans with interchangeable parts that allow the robots to live forever (Saga of a Star World).

The reptilian Cylons allowed themselves to be overcome by their own technology (War of the Gods, Part II) upon the creation of the Imperious Leader (Experiment in Terra Telemovie). The robotic Cylons became an organized war machine bent on exterminating life in the galaxy after the creation of the Imperious Leader, who had a slight error in its programming (Experiment in Terra Telemovie). Despite the fact that the reptilian Cylons had long since been wiped out, their robotic creations still bear their name (Saga of a Star World). The term has come to almost be exclusively describe the robotic antagonists of the Colonials.

Robotic Cylons

Under the robotic Cylons, they began expanding their sphere of influence, creating what Commander Adama calls "the Alliance" (Saga of a Star World). The Cylons' goal is to strive to achieve "eternal perfection and order" throughout the known galaxy, although they haven't thought much (or at all) beyond that point (The Return of Starbuck).

Centurions appear to be incapable of acting independently, having to refer to "the manual" in order to determine courses of action. Failing that, Centurions often take votes when consensus isn't clear. In addition, they do not appear to have much information on humans, outside of the different genders and general language (The Return of Starbuck). In comparison, the IL-series has more human qualities and emotions ("Lost Planet of the Gods, Part II", "The Young Lords"), although the Centurions are apparently able to emulate emotions and human qualities, such as freedom of choice and loyalty as exemplified by Cyrus (The Return of Starbuck).

These Cylons are also referred to as "tin cans" (The Young Lords).

Cylon Society

There are five types of Cylons:

• Imperious Leader: controls all Cylon forces and rules the empire. The Imperious Leader is distinguished by taking on an appearance meant to resemble the reptilian Cylon race.
• IL-series (or the "IL group"): Robots that typically take on the administrative duties of the Cylon Empire.
• Command Centurion: Robots with gold plated armor that are analogous with commanders in the Colonial Military.
• Cylon Centurions: These robots are the chrome plated foot soldiers, pilots, and labor force for the Cylon Empire.
• Cylon "civilians": According to Colonel Tigh, he picks up civilian transmissions of a Cylon nature on Gamoray (The Living Legend, Part I).

Cylon craft

There are three known Cylon spacecraft:

• Basestar: Capitol ships of the Cylon military force, analogous to the Colonial battlestar.
• Raider: The primary fighter of the Cylon forces, manned by two pilots and a ship commander.
• Freighter: Ships used throughout the Cylon sphere of influence to provide fuel. May be used to support an offensive operation, as demonstrated at the Battle of Cimtar (Saga of a Star World).

Cylon history

The Thousand Yahren War

Main Article: Thousand Yahren War

The Thousand Yahren War between the humans of the Twelve Colonies and the Cylons began when the Colonials liberated the Hasari from Cylon rule. The Cylons then viewed humanity as a threat to their Empire and proceeded to attack Colonial installations.

The Cylons and the humans fought for roughly one thousand yahren, with losses on both sides.

The final end to the war occurred after Baltar, a member of the Quorum of Twelve, met with the Cylons to propose peace. Instead of proposing peace as he had intended, Baltar sought personal power and that the Colonies be subjugated under his rule.

Instead, they altered the so-called "bargain" that Baltar and the Imperious Leader had struck. The Cylons instead administered the coup de grace to their enemy (Saga of a Star World).

Cylon pursuit of the Colonial Fleet

The "rag-tag, fugitive fleet", being led by the last known surviving battlestar, Galactica, flees their homeworlds, avoiding the Cylon genocidal attacks.

Sparing Baltar's life, the newly ascended Imperious Leader gives Baltar the command of three basestars and a cogitator, Lucifer (Saga of a Star World, Lost Planet of the Gods, Part I). With Baltar pursuing the Fleet, Galactica and the 220 ships she leads from their aggressors avoid Cylon death traps, such as those on Arcta (the "Ravashol pulsar"), and all out attacks (e.g. Battle of Gamoray and the events of "Fire in Space").

Eventually, a daring, successful attack on a lone basestar leads Adama to believe that they may have outwitted the Cylons -- who have, apparently, spread their resources thin in an attempt to locate the remaining humans (The Hand of God).