Becoming the Mask: In the Golden Ending, Argus goes back to actually replace the pilot of the Cobalt King. Whether or not he dropped the bomb, and if he was killed by his co-pilot for not doing so, is left up to the viewer to determine.
Reports of My Death Were Greatly Exaggerated; Argus, a member of the Imperial Intelligence, has his name published as the 'traitor' pilot of the Cobalt King, who refused to drop the fourth bomb. This comes back to bite him in the ass. Hard.
Set Right What Once Went Wrong: Attempts to do this in the Golden Ending, sending Akyta back in time whilst she is carrying Lynthe's child (who will become the first Enkie), hoping that her knowledge of the 'future' will help her avert what happened. Or something.
Stable Time Loop: May or may not have caused one as part of the Golden Ending. If he refuses to drop the bomb, just as the original traitor pilot did, Argus will likely be killed for being a traitor to the Empire; this will almost certainly start his father's Roaring Rampage of Revenge again. But this is itself assuming Argus travelling back in time to that point actually undoes his father's death, which it may not. Even if it does, it's not a perfectly stable loop; since Argus is dead, he can't stop that rampage and kill his father. Time travel is such a mess.
Turned Against Their Masters: Garai was manufactured for the Imperial Guard, but stolen and reprogrammed by Koss. Or possibly purchased by Koss and reprogrammed. The narration/backstories are inconsistent.
Blood Type: AB / Age: 32 / Species: Leopard
Broken Bird: Durak can never have children (for reasons left unexplained; whether she's simply incapable, or cannot because there are no other nobles, or something else), and is the last surviving Enkie noble. In the alternate narration, she acts this way not for the sake of nobility, but for the sake of knowledge or something to that effect.
Death Seeker, Because Destiny Says So: As she knows the day she is destined to die, Durak eventually resolves to make her death meaningful. Or at least give the Empire a black eye for what they've done to her people.
Only One Name: Enkie nobles have only one name, because they are considered absolutely unique.
Spread Shot / Smart Bomb: Her subweapon, Sonic Sword, which sweeps through a small portion of the screen around her plane and deals massive damage to enemies.
Blood Type: A / Age: 26 / Species: Iguana
Cluster F-Bomb: Ytoo is easily one of the most foul-mouthed members of the cast.
Heel-Face Turn: Ytoo was a Collaborationist, but joined up with Akyta's group of the resistance after being wounded and abandoned behind enemy lines by his own forces.