Moore's approach also differs from his previous series Star Trek: Next Generation and Deep Space Nine in terms of avoiding "the planet of the week and encountering an alien race that is some metaphor for human society. There weren't going to be a lot of shoot 'em up firefights with guys running around on the surface of the planet. We weren't going to be doing bug-eyed aliens. We weren't going to be doing a lot of things that are the staples of the genre and as a result we could put all our resources into this one ship and this one world and really concentrate on it and bring it to life."
To Moore, the dark tone of the premise, "an apocalyptic bolt-from-the-blue attack that wipes out a civilization and leaves a core group of survivors," can be handled much more realistically than it could in 1978, and gains extra significance in the current historical climate. "The show is definitely imbued with themes from the 9/11 attack, the war in Iraq, the war against terrorism, to civil liberties, security, freedom and all the issues we grapple with daily," he says.
Populating the gritty new Galactica alongside Olmos and Sackhoff, are Jamie Bamber as Capt. Lee "Apollo" Adama, James Callis as Dr. Gaius Baltar, Tricia Helfer as Number Six and Mary McDonnell as President Laura Roslin. In two episodes this season, original Apollo Richard Hatch returns as imprisoned revolutionary Tom Zarek.