* CrazyIsCool: Teddy, the AI that believes that he's Teddy Roosevelt, led a cavalry charge against Berserker ground forces, while standing on a tank in his humanoid avatar/platform and wielding a saber.
* HilariousInHindsight: The timeline mentions that in this universe, thanks to a particle accelerator that encircles the moon, they discovered the Higgs Boson particle in 2087... when evidence of its existence was found in the real world in 2014. Whoops.
* IronWoobie: Petan. The guy's a huge, heavily armed and very badass combat craft, with a history that makes you wish it was physically possible to give him a hug.
** [[spoiler: Well, he recently got a robotic body, so you can now give him a hug. How he reacts to that however...]]
* WoobieSpecies: The quetzal. [[spoiler: Humanity found three hundred and twenty six of them in suspended animation on Titan, where they'd been for three thousand years after being attacked by an unknown ship (later discovered to be a Berserker). A later mission to their homeworld found that it had been devastated by the Berserkers about three thousand years ago, with all life being wiped out, making the quetzal found on Titan the only surviving members of their species. While humanity has treated them well, the quetzal live with the knowledge that they owe them for pretty much everything, from rescuing them from Titan to giving them a home on one of their space habitats, and consequently feel that they owe humanity a debt that can never be repaid, not to mention that it is heavily implied that what remains of their culture will eventually die out due to successive generations of their children growing up surrounded by human culture.]]