- Dark Magical Girl: All members, especially Galaxia.
- Fallen Heroines: Many of Shadow Galactica's members in the manga are former Sailor Guardians that have turned evil. Those that aren't (the Sailor Animamates) killed the Sailor Guardians of their planets to gain power, though both manga and anime mention that they are being controlled by bracelets that Galaxia has put on them.
- Harmless Villain: Due to the Lighter and Softer nature of Sailor Stars, all of them except for Galaxia.
- Hero Killer: Particularly in the manga. With the exception of maybe two occasions, every time one of them shows up, a Guardians either dies horribly or is kidnapped. Also the fact that the Animamates killed the Guardians of their home planets before we're even introduced to them.
- Human Aliens: Yes, they're from completely different planets. It's not like we've never seen that before.
The final villain of the Sailor Moon series, a dark being that is the source of all evil in the galaxy.
- Arc Villain: By the end of the series, it becomes a menacing villain of its own.
- As Long as There is Evil: As long as someone has evil in their heart, Chaos can take control of them.
- Ax-Crazy: Unlike with other villains, it can't be reasoned or bargained with. It only cares about causing destruction.
- Big Bad: The final one for the Sailor Moon series and of the Shadow Galactica arc.
- The Chessmaster: In the manga, it orchestrates all of the bad stuff that happens over the course of the series, and manipulates Sailor Galaxia into working towards its goals, as opposed to possessing her.
- The Corrupter: In Sailor Stars, it corrupts Sailor Galaxia after she sealed it.
- Dark Magical Girl: It's stated in the manga that Chaos will one day emerge from the Galaxy Cauldron as Sailor Chaos and we're treated to a single panel image of her.
- Demoted to Extra: Even though Chaos is still the Final Boss of the series, it goes from being a character in the Stars arc to a malevolent force manipulating Galaxia in Sailor Stars. This is made clear by the fact that, in Sailor Stars it doesn't even get a battle with Sailor Moon and after Sailor Moon redeems Galaxia, Chaos is purged to return to the minds of people around the universe.
- The Dreaded: Everyone fears it and for good reason. It can seize the Legendary Silver Crystal and turn into several forms at will. In Sailor Stars, it can even corrupt anyone, like what happened with Sailor Galaxia.
- Fighting a Shadow: In the manga, all of the previous Big Bads were incarnated aspects of Chaos, while Chaos itself has been safely residing in the Galaxy Cauldron.
- Final Boss: Chaos is the true final villain of Sailor Moon, one of the most powerful villains ever and the absolutely most dangerous one.
- Greater-Scope Villain: Queen Metalia, Death Phantom, Pharaoh 90 and Queen Nehellenia (or Nehellenia's cursed mirror in the 90s anime version) were nothing more than embodiments of Chaos, carrying on its will to seek out and seize the Silver Moon Crystal in order to obtain the ultimate power necessary to achieve his true goal.
- The Man Behind the Man: It's only hinted at in Sailor Stars, and outright stated in the manga that Chaos is the evil force behind all the villains of previous arcs, and is even manipulating the Big Bad of the Shadow Galactica arc.
- Omnicidal Maniac: It desires to bring an end to the universe and recreate anew to fit its whims.
- Sadistic Choice: As Chaos is too deeply entrenched in the Galaxy Cauldron, destroying Chaos permanently requires destroying the Galaxy Cauldron, which means no more new star-seeds being born, thus dooming the galaxy (perhaps even the whole universe) to a slow extinction of all forms of life, as well as no more stars being born. Sailor Moon instead decides to forcibly drag Chaos deep enough into the Cauldron that its essence is diluted enough that it enters a sort of hibernation/comatose state, though it is only a temporary measure.
- Suddenly Voiced: By the end of the manga, Chaos finally speaks during Sailor Moon's battle with Sailor Galaxia.
- Ultimate Evil: Particularly in the manga, where we barely even see what it looks like, though it seems to resemble Metalia. It is only stopped temporarily, and is going to return as practically invincible Sailor Chaos to unleash a devastating war on the galaxy sometime in the future.
- You Have Failed Me: In true Sailor Moon fashion, Chaos is willing to kill anyone should they fail their missions. In the manga, it attempts to murder Galaxia at the Galaxy Cauldron after she brings Sailor Moon to it (although in fairness Galaxia was planning on backstabbing Chaos first). It's only by Sailor Moon's intervention that Galaxia survives.
Played in the musicals by: Saori Sara, Tamami Matsumoto, Takemi, Yumie Sakaguchi
- Adaptational Heroism: In the anime, she was a legendary heroic Sailor Soldier who sealed Chaos inside herself long ago, and is only trying to take over the galaxy because Chaos is possessing her. In the manga, she works for Chaos voluntarily out of her own lust for power.
- All There in the Manual: If you have only read the manga, you wouldn't know that her hair is actually dual-colored — golden-orange and red, specifically — due to the fact that the manga's greyscale images depict her hair as a uniform "white" shade, and the colored cover pages only show her in her armor, in which her long hair being rolled back into her headress and shows only the golden-orange part. Her artbook illustrations, concept art, and Sailor Stars shows her hair's multicolored nature more clearly.
- Authority Equals Asskicking: The apparent leader of Shadow Galactica, and easily the most powerful villain in the franchise next to Chaos. In all incarnations she gives a brutal curbstomp asskicking, taking down the Guardians in single blows and the Starlights only last as long as they do because she toys around with them. Usagi doesn't even defeat her in a straight battle note but only wins by psychological means through showing her kindness that results in her surrendering the battle. Even here, Sailor Moon needed the help of allies to accomplish this.
- Badass Boast: A particularly awesome one from the poem preceding her character song. She invites Sailor Moon to battle in space by saying: "Such a tiny planet is not suited for our battleground. Its not even suited for you."
- Bad Boss: Her Establishing Character Moment is having her minions killed immediately after they failed their mission to retrieve the Sailor Crystals.
- Beauty = Goodness: She is nowhere a nice person, but out of all the "main" villains in the manga, she is the most beautiful and the only one to be redeemed by Sailor Moon.
- Berserk Button:
- In Sailor Stars, do not talk back to Galaxia within earshot of her. She'll get so mad, she'll attack anyone at will... Case in point:
- When Aluminum Seiren returns without a Star Seed like she said she'd have, instead of apologizing or groveling Seiren simply replies she didn't know there'd been so many Sailor Senshi. Galaxia's voice is dripping with barely restrained rage and her fists are trembling as Crow begs Seiren to apologize while Seiren says it wasn't exactly her fault, like she's almost implying it's Galaxia's fault for not telling her about the other Senshi. She coldly murders Seiren as she and Crow beg for another chance.
- When she tells the Outer Guardians that Queen Nehellenia gladly served her during the opening arc of the fifth season, Saturn rebukes Galaxia and says she only manipulated Nehellenia's hatred. Galaxia gets pissed.
- When she accuses the Sailor Starlights of being cowardly traitors who abandoned their homeworld for survival, Sailor Star Fighter calls her a liar, and Galaxia fiercely says she's not wrong and attacks the Starlights with killing intent.
- A bigger one, though, is getting injured. With the power to back up the position of strongest Sailor Soldier, she believes herself to be completely untouchable, so when the Starlights finally manage to land a powerful blow that injures her, she completely flips out and decides to kill them.
- In Sailor Stars, do not talk back to Galaxia within earshot of her. She'll get so mad, she'll attack anyone at will... Case in point:
- BFS: In Sailor Stars, she has a giant sword. She doesn't use it that much, though.
- Big Bad: The main antagonist of the fifth arc. Galaxia did become good towards the end of the series, either by the help of someone telling her about love, or by having Chaos purged from her.
- The Chessmaster: She awakened Queen Nehellenia just in order to force Sailor Saturn to grow up, and therefore being able to capture her fully grown Star Seed.
- Climax Boss: Despite becoming one of the most powerful villains in the Sailor Moon canon, she's technically not the Final Boss. That's the much eviler and malevolent Chaos.
- Dark Magical Girl: The manga version of Sailor Galaxia is what happens when a Dark Magical Girl grows up and comes into full power before meeting her good counterpart. The results are not pretty. She's also a Dark Magical Girl in the anime, although only because Chaos was possessing her.
- Demonic Possession: In the 90s anime, Galaxia tried to turn herself into a can for sealing Chaos and sent her own Star Seed (Chibi Chibi) away to not get her contaminated. Didn't quite work. However, being The Chessmaster she made preparations to give the new generation of Sailor Guardians a fighting chance against her.
- Devil in Plain Sight: In the manga she takes full advantage of the fact she transforms to walk up to Usagi and Chibichibi in the park, have a nice chat, and then suddenly talk of starseeds before attacking.
- Disc-One Final Boss: She ends up as this to Chaos, since Chaos is more powerful than her and far more evil.
- The Dragon: To Chaos. In Sailor Stars, this is only because she's possessed.
- The Dreaded: The guardians and, in Sailor Stars, Galaxia's subordinates fear her and for good reason. She delivers a Curb-Stomp Battle to all the Guardians and (in Sailor Stars at least) would kill her subordinates for any failures.
- Evil Costume Switch: When the Final Boss Chaos completely overtakes her in Sailor Stars, her golden armor becomes pitch-black, her skin turns pale grey, and her naturally golden/red hair becomes all blood red-colored.
- Evil Counterpart: To Usagi, especially in the manga.
- Evil Is Petty: In the manga, she once destroyed a planet because a few people on it annoyed her.
- Evil Redhead: In Sailor Stars, she uses Chaos in the Grand Finale to become "Chaos Galaxia", turning her hair completely red and making her even more vicious than she already was.
- FaceHeel Turn: In Sailor Stars, after Galaxia decided to seal the true Big Bad, Chaos, inside her, she becomes corrupted.
- Fallen Heroine: In Sailor Stars, she was once a revered Sailor Guardian who sealed Chaos away into her own body in order to save the galaxy. Unfortunately for her, it made it easier for Chaos to slowly corrupt her thoughts.
- For the Evulz:
- In Sailor Stars, it's fairly clear that the Sailor Animamates' missions were meaningless and meant only to entertain her to begin with, yet she still kills them off for failures. Moreover, her offer to Uranus and Neptune and her words after it is accepted imply that she cycled through many, many sets of minions this way. Though not explicitly stated, it is heavily implied that she sent her minions out to draw princess Kakyuu out of hiding. After the princess finally reveals herself, Galaxia attacks an episode later.
- In the manga, she's not above offing a failed underling as well.
- Galactic Conqueror: She is very similar to Marvel Comics' Thanos in her goals of galactic domination.
- Greater-Scope Villain: In Sailor Stars, she awakens Queen Nehellenia from her seal at the beginning of the arc in order to make the Sailor Guardians Star Seeds their absolute strongest and revive the de-aged Sailor Saturn.
- Hair-Trigger Temper: She can snap from calm to a towering temper or a malevolent vindictiveness and back again with terrifying speed given the power she has.
- HeelFace Turn: In both the manga and Sailor Stars. In the manga it happens when Usagi convinces her that what she really wanted was to be loved and showed her that she needed love, purity, and compassion to be a Sailor Solider instead of pure power, and in Sailor Stars it happens when Usagi convinces her that she still has good in her after expelling Chaos from her body.
- Hero Killer: She murdered or caused the death of nearly the entire cast.
- I Just Want to Be Loved: This is another reason for her actions in the manga, instead of doing it for pure power. (Though she doesn't realize it herself till the end, her whole start of darkness was her assuming what she was missing was more power. It wasn't.)
- Kick the Dog: Killing her subordinates for failing to capture the Star Seeds in Sailor Stars.
- Knight of Cerebus: Both versions.
- In the manga, she quickly causes everything to go to hell the whole arc by murdering everyone except Sailor Moon and ChibiChibi over the course of the arc.
- In Sailor Stars, she's a very serious villain with incompetent henchmen that are shit scared of her with good reason, and essentially causes the season to take a Mood Whiplash whenever she appears.
- Lady of War: It helps that her "Sailor fuku" makes her look like she's wearing armor.
- Multicolored Hair: According to official illustrations and concept art, Galaxia's long hair starts off golden orange and gradually shifts to a bright red midway through its length. It's not noticeable at all in the manga due to its pages being mainly greyscale, and even on the colored covers only the golden orange part is visible (though obfuscated by her similarly golden-colored headgear, within which it's all bundled up). Sailor Stars shows it much more visibly, on the other hand, especially after she's freed from possession by Chaos and sheds her armor.
- Near-Villain Victory: After killing off the remaining Sailor Guardians, Galaxia has basically won. Nearly every member of the cast is either dead, except for Sailor Moon, Chibi-Chibi and the Sailor Starlights. If Sailor Moon hadn't brought Galaxia back to the side of good, the series would have a Downer Ending.
- No Name Given: Her real name is never stated in either the manga or the anime.
- No-Nonsense Nemesis: Both anime and manga:
- In the anime, most of the series is her first freeing Nehellenia to "train" Sailor Moon into getting her final power-up, and then using her minions to draw Kakyuu out. The moment Kakyuu is found, Galaxia enters the fight personally and wipes out all of humanity.
- In the manga she needs Sailor Moon alive for her plan, so she sends her minions after her... And makes sure she cannot rely on her allies, personally going after Sailor Venus and the Outers, the most dangerous ones.
- No-Sell: Due to removing her own Star Seed from her body long ago Galaxia is completely immune to the effects of the bracelets her minions wear. Neptune and Uranus discover this the hard way when they attempt to backstab her.
- Oh, Crap!: In Sailor Stars when Sailor Moon severs her connection to Chaos, which causes it to be purged permanently.
- Omnicidal Maniac: She wiped out all lifeforms on multiple planets.
- One-Winged Angel: Towards the end of Sailor Stars, Chaos's manifestation is a powered-up Galaxia. With actual demonic wings and a black uniform.
- Orcus on His Throne: In Stars Galaxia sends the Animamates out even though she could easily kill nearly everyone who opposed her in a matter of minutes and finally does by the end.
- Person of Mass Destruction: Sailor Galaxia has enough power to casually destroy planets.
- Rapunzel Hair: Long, pretty orange and red hair.
- Redemption Earns Life: In Sailor Stars, she survives after Sailor Moon removes Chaos's corruption from her.
- Redemption Equals Death: In the manga, it's the act of redeeming herself that kills her, as the bracelet sustaining her starseed shatters as a result of her HeelFace Turn. However, it's implied that she's reborn along with all the other dead Guardians in the end.
- Red Eyes, Take Warning: A Trope Codifier for anime villains in general. She has red-orange pupils.
- The Starscream: In the manga she intended for Sailor Moon and Chaos to destroy each other during the Final Battle in order to gain the power of the Galaxy Cauldron for herself. However Chaos saw this coming and is easily able to counter her.
- Straw Nihilist: Galaxia was convinced that the world was horrible and the life was worthless, seeking power to justify her existence through remaking the galaxy.
- Turns Red: By the end of Sailor Stars, her hair turns red after Chaos corrupts her into "Chaos Galaxia".
- Villain Ball: Like Queen Beryl before her, Galaxia takes the You Have Failed Me attitude a little too seriously, to the point that she'll likewise kill one who's discovered the Sailor Senshi's identities before they can divulge the information.
- Well-Intentioned Extremist: Galaxia thinks she's doing what's right and wish to destroy Chaos, though not for any benign reasons in the original manga.
- What Is This Thing You Call "Love"?: In the manga, Galaxia desires to have the strongest star in the universe as her planet. All of her actions before and during the story were done in an attempt to become the strongest Senshi in existence and to have a planet worthy of her. However, during the final battle, she is exposed to Sailor Moon's supreme hope, purity, and love. This makes her realize that she was never seeking power; what she really wanted all along was love and acceptance, but given her upbringing on her home planet she had no idea what those things were. As she reaches out to Sailor Moon, recognizing her as the "star" she'd been searching for her entire life, her bracelets shatter and she dies.
- World's Best Warrior: In Sailor Stars, Galaxia was, as befits her name, the strongest and powerful Sailor Guardian in the entire Galaxy before her FaceHeel Turn and kept the title to the end, as far as sheer power is concerned.
- You Have Failed Me: Galaxia won't hesitate to kill anyone should they fail her.
- Adaptation Expansion: Some musicals have added additional members, such as Sailor Pewter Fox and Sailor Titanium Kerokko (Crocco).
- Adaptational Heroism: In the manga they're not really Sailor Guardians. They murdered the Guardians of their home planets and were given powers by Galaxia. In Sailor Stars on the other hand it's confirmed by Princess Kakyuu regarding Sailor Tin Nyanko, and by extension all of the other Animamates, that they are true Sailor Guardians who were brainwashed by Sailor Galaxia using the bracelets. Whereas in the manga, Luna and Artemis deny that Tin Nyanko is Sailor Mau.
- Animal Motif: Except Seiren, they're all based off animals.
- Ascended Extra / Adapted Out: Just like most Quirky Miniboss Squads of Sailor Stars, in the manga they were killed off extremely quickly, some within the very scene they appeared in. In Sailor Stars the first four members appear in multiple episodes. Heavy Metal Papillion on the other hand has her role completely cut.
- Evil Counterpart: In Sailor Stars, Aluminum Seiren and Lead Crow are basically Usagi and Rei, but working for the bad guys. This is used to explore how Rei would act if Usagi died, and Rei's death ends up resembling Siren's closely.
- Hero Killer: They have a high body count in the manga.
- More Than Mind Control: In the anime, exactly how much of the evilness of the Animamates' actions is due to the bracelets is up for debate. When Tin Nyanko has one removed, she's caught switching between begging someone to stop her and gleefully trying to murder everyone. Considering Sailors Uranus and Neptune were in total control of themselves while wearing the bracelets, the leading interpretation is that the bracelets might only be influencing a person depending on the need for it.
- The Quisling: According to the manga, every one of them was originally a normal soldier on their respective home planets. They each betrayed and murdered their planet's real Sailor Guardians to pave the way for Shadow Galactica's hordes, and Galaxia rewarded them by making them fake Sailors, hence the "artificial" nature of their names.
- Theme Naming: Sailor + Metal + Animal.
Sailor Iron Mouse aka Nezu Chuukou
From the planet Chuu.
- Butt-Monkey: Even her death is somewhat played for laughs.
- Fan: She seems more invested in her celebrity targets in Sailor Stars by actively following their careers.
- Ineffectual Sympathetic Villain: Out of all of the Sailor Animamates, she's the least menacing.
- Odango: That look a lot like mouse ears.
- Pretty in Mink: Her gloves and shoulders are trimmed with white fur, in addition to her white fur earmuffs.
- Running Gag: She carries an old-fashioned black phone with her to keep in contact with Galaxia, and whenever it starts ringing, anyone nearby think it's their phone ringing as they check their bags.
- Smug Snake: In Sailor Stars. Sometimes played for comedy, though. Even in the episode where she dies.
- Vile Villain, Laughable Lackey: Sailor Iron Mouse wasn't a very serious villain, but when she failed, she was (rightly) terrified of how her boss would react.
- Woman in White: Her costume is predominantly white with some black.
- You Have Outlived Your Usefulness: Gets killed by Galaxia in Sailor Stars. In the manga, she gets killed in her first appearance.
Sailor Aluminum Siren aka Reiko Aya
Aluminum Siren comes from the planet Mermaid. In the manga she only appears in one scene during Act 52 where she's quickly killed off but Sailor Stars expanded her role.
- Absolute Cleavage: Her costume leaves little to the imagination.
- Adaptational Comic Relief: Sailor Stars turns her into a ditzy Cloud Cuckoo Lander, contrasting the deadly monster she was in the Manga.
- Adaptational Wimp: In Sailor Stars, Siren relies predominantly on her bracelets, and has no real fighting prowess. In the manga her Galactica Tsunami attack grants her Prehensile Hair which she uses to kill Mercury and Jupiter; in Sailor Stars the attack is just her throwing drink items.
- Affably Evil: She's so nice, soft-spoken and polite, it's easy to forget she's a villain. She hands out business cards to her targets. Not so much in the manga.
- Anti-Villain: In Sailor Stars, she is easily the most sympathetic of the Sailor Animamates.
- Batman Gambit: After discovering Usagi's secret identity as Sailor Moon, Siren sent Usagi a ticket to an airline featuring the Three Lights with the implied threat of harming everyone on board, including the celebrity trio. Usagi naturally went and was willing to follow through with Siren's demands to keep everyone safe. And she would have gotten away with it too if it weren't for those meddling Inner Senshi who happened to be on the same plane and for the Three Lights being the Sailor Starlights aswell.
- Big Eater: She either complains about having an empty stomach or eats any good meal in her surroundings before attacking her victims. Much to Lead Crow's despair.
- Bunny-Ears Lawyer:
- Though she's the least evil villain on the team outside of battle, once she's in a fight she's absolutely vicious. Lamp Shaded in Sailor Stars.
- Also, she found out Sailor Moon's identity. Had she not died before she could tell anyone, the final season would have been much shorter. Although she did write it down in her diary, which Lead Crow later finds.
- Cloud Cuckoo Lander: She's rather out there and often has her priorities mixed up. In Sailor Stars, she is known to give her business card out to targets and the Guardians just because she thinks it's the right thing to do.
- Dark Action Girl: In the manga. She wasted no time in killing Mercury and Jupiter.
- The Ditz: Often seems spacey and flighty.
- Died in Your Arms Tonight: Specifically, Lead Crow's.
- Evil Counterpart: In Sailor Stars, she's basically Evil Usagi. Not Evil Sailor Moon, Usagi, as her interactions with Lead Crow are disturbingly similar to Usagi and Rei's interactions.
- Because of her association with water though she could also be considered one to Sailor Mercury. Ironically she is also responsible for her death, as well as Jupiter's in the manga.
- Ineffectual Sympathetic Villain: Which makes her death by Galaxia much worse.
- Morality Pet: To Lead Crow in Sailor Stars. And she remains this even after she dies. Lead Crow's last words just before she's engulfed by a black hole are "I'm sorry, Siren."
- Nice Girl: A rare villainous example.
- Passive Aggressive Combat: She weaponizes her politeness against Sailors Uranus and Neptune by pointing out they're standing on Usagi's dining room table.Sailor Aluminum Seiren: I don't believe it!
Sailor Lead Crow: That's right, you tell them!
Sailor Aluminum Seiren (horrified): You have your shoes on the table!
Sailor Uranus: It, it was an accident.
Sailor Neptune: We're so sorry!
- Prehensile Hair: In the manga. She uses it to choke Mercury and Jupiter to death, before ripping out their Star Seeds.
- Sirens Are Mermaids: Despite her name she draws on Mermaid motifs: Comes from Planet Mermaid, and killed Sailor Mermaid, has an overall blue color scheme, a seashell charm on her choker, her attack, Galactia Tsunami, is water based. (In Sailor Stars it is just her throwing juice boxes and water bottles). Her anime civilian name, Reiko Aya, even contains a pun on Mermaid. She does not sing and aside from her relationship with Lead Crow, has no connection to birds.
- Small Role, Big Impact: Her discovery of the identities of the Sailor Guardians sets up the last seven episodes of Sailor Stars. Siren wrote down their names in her diary, which is found by Lead Crow in 193 and exposes not only their names to Sailor Tin Nyanko but draws out Princess Kakyuu. In a way, Siren's actions are the ones responsible for instigating the climax of the last season.
- Spell My Name with an "S": Fans can't seem to decide if she's called "Sailor Aluminum Siren" or "Sailor Aluminum Seiren". "Siren" is more common due to its significance though.
- Those Two Bad Guys: With Lead Crow. They're rarely seen apart until Siren dies.
- You Gotta Have Blue Hair: Her hair is long and light blue.
- You Have Outlived Your Usefulness: Gets killed by Galaxia in Sailor Stars. In the manga, she gets killed in her first appearance.
Sailor Lead Crow aka Akane Karasuma
From the planet Coronis, also the homeworld of Phobos and Deimos in the manga.
- Anti-Villain: In Sailor Stars. Although she's not as sympathetic as her partner Aluminum Siren, it later becomes clear that she's only fighting for her and Siren's survival.
- Broken Bird: Seiren's death really messes her up, and most of her appearances afterwards show she's increasingly losing hope of staying alive. You can actually pinpoint the exact moment Lead Crow finally gives up literal seconds before she dies.
- Butt-Monkey: Whenever she had to be the Straight Man for Seiren.
- Can't Spit It Out: When asked why she followed her to Earth, a flustered and angry Lead Crow tells Seiren "I came because I was worried about you, my rival!" This is a subversion in that while she does tell Seiren she's worried about her, it's always about their fictional rivalry.
- Dark Action Girl: Taken Up to Eleven in Sailor Stars: she sent Venus and Mercury flying into a stone wall with enough strength for their bodies to form craters, and Mars and Jupiter into a greenhouse.
- Dark-Skinned Redhead: In fact, her hair and skin tones are rather similar.
- Evil Counterpart: To Rei in Sailor Stars. Her Tsundere habits with Seiren are quite similar to Rei's tendencies with Usagi.
- Good Wings, Evil Wings: In both the anime and manga, she's shown to possess a large pair of black crow's wings. In the anime, however, they're only seen when she's in Galaxia's throne room.
- Hoist by Her Own Petard: In Sailor Stars, though she had "assistance" from Tin Nyanko.
- Insistent Terminology: She frequently refers to Seiren as her rival, adding in "Eternal," "Former," and "Precious" on a regular basis. But absolutely nothing about the two says rivalry other than Crow repeatedly stating the fact, to the point that she actively hunts for Seiren's targets. It seems the only reason Crow calls Seiren a rival is to get her to take her job more seriously so Galaxia doesn't kill her. It fails.
- Not-So-Harmless Villain: Less so than Aluminum Seiren. Crow is always the more serious of the two, and shows just how deadly she is when sends the Inner Guardians flying into stone and glass walls and threatens to unleash a black hole capable of killing thousands if she doesn't get Usagi's star seed.
- Pass the Popcorn: She often loves to stand back and watch when Seiren starts acting vicious on a target.
- Those Two Bad Guys: With Aluminium Siren. They're rarely seen apart until Siren dies.
- Tsundere: In Sailor Stars, towards Aluminium Seiren. Even if you don't ship them together, you can't ignore how she nagged on her partner but ultimately cared for her.
- Whip It Good: Although she doesn't use it very often, she does possess a whip that can do serious damage.
Sailor Tin Nyanko aka Suzu Nyanko
From the planet Mau, also the homeworld of Luna and Artemis in the manga.
- Anti-Villain: In the manga (definitely not in Sailor Stars, although this is because she's Brainwashed and Crazy.)
- Cat Girl: She's clearly based on a cat. "Nyanko" is taken from "nyan" (the Japanese onomatopoeia of a cat's meow) and "ko" (a suffix meaning "child"). In the manga it is revealed that she comes from the same planet, and is the same species, as Luna and Artemis.
- Devil in Plain Sight: In the manga she enrolls at Juuban High under her civilian persona and befriends Usagi.
- Dirty Coward: In Sailor Stars, she almost never attacks anyone directly, believing it's smarter to attack from behind.
- Faux Affably Evil: Especially to Lead Crow in Sailor Stars. Her directly mocking Crow immediately after mocking Seiren while Galaxia killed her is followed by Tin Nyanko halfheartedly acting as though they're friends even as she sabotages Lead Crow's missions and kills her.
- HeelFace Door-Slam: Sailor Moon manages to partway purify her by hitting one of her bracelets and destroying it; this causes one side of her uniform to turn white and her to be torn between acting good or evil. Galaxia will have none of this and kills her off before Sailor Moon can finish. Granted, this kind of implies that the purification probably would have killed Tin Nyanko, anyway, since Galaxia only had to remove the other bracelet to kill her off.
- Smug Snake: In spite of all of her posturing, she's a more ineffectual villain than her fellow Animamates.
- The Sociopath: Her Brainwashed and Crazy persona in Sailor Stars is devoid of any empathetic qualities whatsoever.
- You Have Failed Me: Killed by Sailor Galaxia after failing in her mission towards the end of the series.
Sailor Heavy Metal PapillonFrom the planet Cocoon. The last and most formidable Anima Mate, she appears only in the manga and Musicals.
- Action Mom: A surprisingly evil variant, though her being a mother isn't touched upon in the series proper.
- Adapted Out: The only member of the Animamates to not appear in Sailor Stars.
- All There in the Manual: The artbooks list her as a Samba dancer and a mother. They're also the source of the name of her planet. The Materials Collection artbook also reveals her coloring, which is very bright and vivid.
- Butterfly of Death and Rebirth: She turns the souls of all the Crystals that Galaxia captured into butterflies. When she is first introduced, she is surrounded a swarm of them.
- Fanon: Because she is said to have a child (in fact, she's the only Senshi besides Sailor Moon to be confirmed to be a mother), it's commonly speculated by the fandom that she joined Shadow Galactica so that Galaxia would spare her child's life.
- Playing with Fire: Her Galactica Scales attack is fire-based.
Sailor Phi and Sailor Chi
Star gardeners who watch over the Sailor Crystals Galaxia's other minions harvest. The two are actually directly in charge of the Sailor Animamates under Galaxia's orders.
- Adaptation Expansion: Some musicals make them a trio by adding Sailor Theta.
- Adapted Out: The two of them are absent from Sailor Stars and are only prominent in the manga.
- Avenging the Villain: After Sailor Phi is killed by Sailor Moon, Chi is so enraged that she shoves her staff straight through Sailor Kakyuu's chest until it reaches the floor.
- Ax-Crazy: They are easily the most violent of Galaxia's minions.
- Creepy Twins: Possibly. They look alike and have similar names but they aren't outright called sisters.
- The Dragon: The most prominent reoccurring members of Shadow Galactica besides Galaxia herself.
- Hero Killer: They kill off Lethe, Mnemosyne and the Starlights, and Chi personally kills Kakyuu.
- Noblewoman's Laugh: In the manga, their Evil Laugh is a prominent "OHOHOHOHOHO" as they kill Lethe and Mnemosyne.
- Plant Person: Invoked. Their role as Star Gardeners and Phi's attack "Galactica Plant Blizzard" has more to do with their harvest of Sailor Crystals than foliage.
- Spell My Name with an "S": Chi's name is pronounced "Kai" and Phi's name is pronounced "Fy."
- You Have Outlived Your Usefulness: They dispatch Lethe and Mnemosyne the moment they reconsider their alliances.
Sailor Mnemosyne and Sailor Lethe
From the planets Mnemosyne and Lethe. The two guard the Desert River of Oblivion on the outskirts of the Sagittarius Zero Star and are in charge of wiping out the memories of any trespassers that enter the Shadow Galactica territory. Unlike the majority of the minions under Galaxia's command, the two were both true Sailor Soldiers before joining Shadow Galactica. They signed up willingly after their planets' demise because their worlds were always at war with each other and Galaxia had made them peaceful by wiping out all life. Sailor Lethe is the Soldier of Truth and Sailor Mnemosyne is the Soldier of Memory.
- Adapted Out: The two of them are absent from Sailor Stars and are only prominent in the manga.
- Anti-Villain: Mnemosyne and Lethe joined Galaxia because they truly believed she would bring order to the universe, something they desperately wanted since their planets were engulfed in an endless war.
- HeelFace Door-Slam: Mnemosyne feels sorry for Sailor Moon and restores her memory after Lethe erases it, then convinces Lethe to join her in helping Sailor Moon. Both she and Lethe then get killed off by Sailors Phi and Chi for turning on Shadow Galactica immediately afterwards.
- Hero Killer: Lethe murders Luna, Artemis and Diana while they're amnesiac.
- Meaningful Name: Lethe and Mnemosyne are both named after figures in Greek Mythology. Lethe is named after one of the rivers in Hades; it was known as the "river of forgetfulness" because all those who drank from it experienced complete forgetfulness. This is exactly what happens to those who drink from Sailor Lethe's river. In addition, "Lethe" was a goddess who was the personification of forgetfulness and oblivion. On the other hand, Mnemosyne was the goddess of memory and remembrance. Likewise, Sailor Mnemosyne is capable of returning the memories of anyone who drank from Sailor Lethe's river.
- Red Oni, Blue Oni: Lethe is the much more aggressive of the two sisters, attacking Sailor Moon and the rest of her entourage and blaming her for the state of the universe. Mnemosyne is much more passive and tries to stop her sister from attacking Moon because she's sick of seeing Sailor Soldiers kill each other.
- Tomboy and Girly Girl: Lethe is the tomboy to Mnemosyne's girly girl.
Phage"False Sailor Guardians" used as the Monster of the Week in the fifth season of Sailor Stars. They do not exist in the manga, however, and were created as filler.
- Ax-Crazy: They attack everyone around them, without provocation.
- Brainwashed and Crazy - Was Once a Man: If a normal person has his/her Star Seed ripped out, it darkens and the person immediately turns into a phage. Once they're purified by Moon, they turn back to normal and without any memories of what happened.
- Canon Foreigner: Unlike the previous monsters of the week, they don't have any kind of equivalent counterpart in the manga.
- Laughably Evil: Some of them are, well, damn funny. Until they properly attack.
- Madness Mantra: One of the phage was created from a famous artist named Kengo Ibuki who had the bad habit of breaking his creations while screaming "This... this is imperfect!" whenever he went through artistic slumps. Once he was morphed into Sailor Artist, he retained said bad habit. His cousin Rei/Mars saw him and recognized him as Kengo, as she'd once witnessed his slumps, and managed to calm him down enough for Moon to purify him.
- Meaningful Name: "Phage" comes from the Greek word for "to eat" or "to consume". it also refers to the bacteriophage viruses that infect and replicate within bacteria.