The character page for Str.A.In.: Strategic Armored Infantry.
Galactic Union
Sara Werec
Sara Werec/Sara Cruz
Libertad
Emily
Melchisedec
Carmichael
Isabella
Mariette
Becky Balboa
Ben Prophetta Hughes
Craven
Defarge
Spatial Armor Squadron
Lottie Gelh
Jessie Ijesse
Dickon Cidnok
Carrisford "Carris" Radofrics
- Replacement Goldfish: Is one Sara due to looking like her deceased friend Cedie.
Ermengarde “Emry” Johannitz
Martha Shoebbeypower
- Butch Lesbian: She is quite muscular and sometimes hard to tell that she is female at all.
Lavinia Reberth
- My God, What Have I Done?: When her plan to get Sara’s affections backfires horribly.
Others
Colin, Mary and Cedie
Deague Empire
Ralph Werec
Ralph Werec
- Ace Pilot: Ralph is considered the best Reasoner in the Union, having taken down ten warships singlehandedly and being the youngest Reasoner to be granted a Gloire model at just 18. He's just as competent if not more so when he's older and on the Deague side, albeit hampered by the fuel and repair issues that come with siding with an army that doesn't use Strains.
- Aloof Big Brother: Ralph is quite aloof towards his little sister Sarah, especially after his betrayal.
- Broken Pedestal: Ralph was Sara's inspiration, up until he slaughtered her classmates.
- Cain and Abel: Ralph as the evil older brother and Sara as the good younger sister.
- Char Clone: The show's been called "Gundam starring Sayla". Ralph himself looks exactly like Zechs Merquise (plus a scar), who's viewed as the most blatant Char Clone in Gundam.
- Curb-Stomp Battle: Ralph dominates any fight that he participates in, save for the Final Battle.
- Defector from Decadence: Ralph was a celebrated war hero, but defected when he discovered the horrifying research that led to Strains and the war crimes he was being instructed to do to cover it up.
- Dying as Yourself: Ralph, as crazy as he was, gets a moment to recognize his sister and entrust her with Emily's care just before he dies.
- Evil Counterpart: Ralph, like Sara, loses everything and discovers the Awful Truth about the Union, but Ralph turns against them and humanity in general, whereas Sara stays loyal and fights to prevent any more death.
- Face–Heel Turn: Ralph in the backstory, setting up for the rest of the show.
- Go Mad from the Revelation: Happens to Ralph, when he discovers that an "unmanned" robot he was fighting turns out to have what looks like a little girl inside. She then reveals how the girls share all their thoughts and memories with each other over vast distances, and gives him the same feelings. Which then causes an immense guilt trip when he discovers the Union performed hideous secret experiments on the little girls, effectively torturing their entire species.
- Good Scars, Evil Scars: Ralph has an Evil Scar over his eye.
- The Heavy: The two villains are Ralph Werec, the protagonist's once-idolized brother and the best pilot either side of the war has ever had, and Vivian Medlock, the immediate superior he's got around his finger. Ralph is clearly The Dragon to Medlock's for much of the series, but he, not her, is always presented as the main antagonist. Ralph ultimately leads the Final Battle, while Medlock gets screwed over.
- Hidden Agenda Villain: Ralph hides his true intentions from the rest of Deague, and the Union can only guess at why he defected.
- Misanthrope Supreme: Ralph Werec despises humanity for what they did to Emily. He defects to Deague in order to kill as many Union soldiers as he can as well as retrieve any survivors of Emily's race, but actually wants to turn on Deague and kill them all too.
- Motive Decay: Ralph's insanity makes him go from "make things right" to "make the Union pay" to "kill all the humans ever".
- Not So Stoic: He keeps his cool throughout the majority of the series. It only during his Villainous Breakdown in the near end that he shows a more emotional side.
- Psycho Supporter: Ralph to Vivian. Although not entirely: he is insane, and he does hate the Union, but he also hates Deague and all other humans. He's just pretending to support Deague because it's convenient for him.
- Sex God: Heavily implied to be the case with Ralph and it's how he manipulates Medlock, who, despite usually being a cold and domineering woman, turns into putty whenever he starts getting intimate with her.
- Villainous Breakdown: Ralph seems to suffer one after Emily refuses to go with him because she didn't want him going on another killing spree.
- Well-Intentioned Extremist: Ralph feels what humans did to the little girls is unforgivable, and will stop at nothing to wipe them out. Hence his Face–Heel Turn.
- The Wrong Right Thing: The dying first Emily whom Ralph meets shares what the Union did to her species and opens a Baxter Gate to send him back to the past to try to right things. Unfortunately, showing him the truth breaks him and he becomes omnicidal.
Kunrun
Captain Vivian Medlock
The Captain of the Kunrun, which pursues the Libertad. She is in a deep relationship with Ralph, which keeps her from learning his true nature.- Big Bad Wannabe: She is the Captain of the Kunrun and has the highest authority among the crew, but Ralph ultimately has her wrapped around his finger.
- Mildly Military: She is rarely seen in her military uniform, openly showing her relationship with Ralph within her massive quarters.
Lt. Colonel Barrow
- Cassandra Truth: Warns Medlock of Ralph having an agenda different from the theirs. But the Captain is completely head over heels for him that it takes Ralph to spell it out for her.
Emily
TUMORs
TUMORs
- Action Bomb: Since the do not have ranged weapons, they act as mobile explosives that self-destruct when close enough, either as mines or guided missiles.
- Combining Mecha: They work in tandem by forming hexagons of seven units. They can combine even combine even further combine in much larger hexagons of 49 units, and can go even further than that.
- Death by a Thousand Cuts: How they can destroy large machines such as Strains and warships, hacking them apart with the arms and drill tails, if not just blow up within them.
- Mecha-Mooks: Their primary function in the war.
- Zerg Rush: They are vastly outclassed by Strains in a one-on-one fight, they rely on attacking by the thousands.
