supernatural events in the series, or not?
Many people say that there is a god or some other supernatural power involved in the series. I do have my little theories about the “One True God” (OTG) in the Galactiverse.
The One True God is clearly a real character in the series. It is certainly not a deus ex machina. This off-screen OTG plays an active and important role from the start of the series.
Is it a real god, or an alien with a special interest in the fate of mankind and cylons? It would be impossible to make this distinction. It/he/she is clearly very powerful. Very powerful can be very god-like for us. How could a person like us distinguish a god from a very powerful and extremely advanced alien? This is quite common stuff in SF. Arthur C Clarke, one of the best-known SF writers, is usually credited with this idea or statement: ‘Any sufficiently advanced technology is indistinguishable from magic.’ Or the variant known as Shermer's Last Law: ‘Any sufficiently advanced extraterrestrial intelligence is indistinguishable from God’
Apparantly this OTG (or whatever alien) took a special interest in the future of humans. The OTG manipulates mankind for his own purposes. It is futile to try to explain the motives of such a ‘god’ or an extremely advanced alien species. We probably could not understand those motives anyway. Just as ants wouldn't understand why we mess with their scent trails - it could be for scientific research, or just for fun, but anyway it beats the intellectual capacities of the ant by far.
In BSG, people (and cylons) are the ants. And apparently the OTG has a very long lifespan and lives in a totally different time scale. His experiments can take thousands of years.
My guess is that this higher force could be the Lords of Kobol, or at least one of them.
We know that on Kobol, people lived among these Lords of Kobol. The Lords of Kobol were considered gods by the people. We can assume that they were no actual gods but in fact a very advanced species. Powerful, with scientific capabilities we couldn’t even begin to understand. Godlike but not omnipotent. People (and Cylons) left Kobol long ago, but perhaps the Lords of Kobol never lost interest in them.
For one reason or another, the OTG chose not to show itself overtly. Maybe that would affect too much the results of whatever he did, or for some reason that is not understandable for our tiny brains. He gave a little push in the right direction here and there, or he used his messengers: the ‘head’ characters. Alien messengers appearing as acquaintances are not an oddity in SF. Think of 'Contact' with Jodie Foster’s character and her 'head father', or the messages send to all the people of the world in 'Childhood's End'.
But at one point, the OTG felt it necessary to make humans and cylons come to the conclusion that there is more in the universe than people and cylons. For that purpose he made a new Starbuck. Starbuck II was meant as a message for both humans and cylons: “Hey, look, there is a more powerful entity at work here, and here is all the proof you need”. At the same time, Starbuck II was an instrument to lead the fleet to new Earth. For some reason the OTG wanted this to happen. He recreated her to achieve a goal, and made her disappear again when that goal was achieved. (Note: in the original series (1978) dead Starbuck was also brought back to life by the godlike ’Beings of Light’ to lead humanity to Earth.)
One could speculate what the motivation of the OTG might be. It is possible he wants to create a species that will survive itself. Until now the previous attempts only led to species that eventually built their Cylons and destroyed themselves. He examines what is necessary to suppress this tendency to built artificial life, and is trying out specific DNA combinations. It is fun to think about it.
In our modern world we are trying to recreate extinct animals with a breeding process called "back breeding". Perhaps the OTG is doing the same: trying to bring back an extinct humanoid species.
Anyway: I see no gods at work in the series. No Deus ex Machina, no magic and no supernatural stuff. There is at least one other party that covertly plays an active role in the series, right from the start. Lords of Kobol, or other extremely advanced aliens, ... who knows? In the end, it really does not matter. The story has been told without specifying it, and it has been told in an astonishing and mindblowing way. Some questionable details in the show's finale, or how to interpret them exactly, don't detract from that IMHO.