Quite early on in the new Battlestar Galactica, it was established that there were only 12 types of "skin-job" (human-like) Cylons. How did the humans find out about this limit?

  • 3
    I was just about to ask this question. Jan 5, 2012 at 17:03

2 Answers 2


In the end of the "mini series" (that is the pilot episodes) Adama finds a note in his office, stating "there are only 12 cylon models", see here:

A closeup of a small slip of paper, unfolded, in someone's hand.  The paper has tractor feed slots on both sides and a "Battlestar Galactica" watermark.  There are few words on the paper: ">  THERE ARE ONLY 12 CYLON MODELS."

It was never established, who wrote this note. At that point the most obvious answer would have been "Baltar", since it was shown that he was in contact with the Six in his mind. However we later learn that there are more cylons on board (e.g. Brother Cavil), not all of which are aware of their nature. It could also have been one of them, but the most plausible answer is Baltar.

  • 1
    Did Baltar know there were only 12? Jan 5, 2012 at 15:58
  • 6
    @Wikis - Yes, Six told him on Caprica just before the attack. Jan 5, 2012 at 16:07
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    but if you found an unsourced note in your office, would you necessarily believe it?
    – HorusKol
    Jan 5, 2012 at 22:04
  • The colonists did.
    – Till B
    Jan 6, 2012 at 7:34
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    It was number 7, called Daniel . Aug 27, 2013 at 17:29

In the Plan, when Adama finds the note in his quarter, the next cut scene is Baltar - it is clear from the direction of this scene that they are pointing the note to Baltar, which makes sense. He knows information that he cannot share without exposing his role in the destruction of the Colonies, yet throughout the series it is clear he'll do anything to stay alive and unharmed. Therefore he wants to give Adama anonymous information that can help Adama, and therefore Baltar defeat the Cylons.

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