History Characters / AbraxasHrodvitnon

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: The Many, [=MaNi=]/Elder Brother, Spoiler Character (The Zmeyevich), '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, Methuselah, The Queen MUTO, Manda (Mandazawa), The Prototype (Kiryu), The Secret Weapon (Mechagodzilla), Ladon, Skullcrawlers, Dagon, Camazotz and his Swarm, The Fleet's God (Gigan), The Makers, The Fleet.

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: The Many, [=MaNi=]/Elder Brother, Spoiler Character (The Zmeyevich), '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, Methuselah, The Queen MUTO, Manda (Mandazawa), The Prototype (Kiryu), The Secret Weapon (Mechagodzilla), Ladon, Skullcrawlers, Dagon, Camazotz, The Fleet's God (Gigan), The Makers, The Fleet.

* [[Characters/AbraxasHrodvitnonHumans Humans]]: Drs. Ilene and Ling Chen, Dr. Houston Brooks, Dr. Rick Stanton, Sam Coleman, Dr. Ishirō Serizawa, Dr. Ilene Andrews, Colonel Diane Foster, Lieutenant Ford Brody, Lauren Griffin, Jackson Barnes, Anthony Martinez, Elle Brody, Madison Russell, Dr. Mark Russell, Ziyi and Yong Chen, Steve Martin, Susan Graham, Ren Serizawa, Nadezhda, Esfir and Lubyov, Sam Brody, Zima, Admiral William Stenz, Lieutenant Commander Pasternak, The Podcaster (Bernie Hayes), '''Alan Jonah''', Dr. Mariko, Tejada, Sergeant Travis, Dr. Emma Russell, Guard B-04, The Collaborators (Apex Cybernetics), The Executive (Maia Simmons), The Director (Walter Simmons).

* [[Characters/AbraxasHrodvitnonHumans Humans]]: Drs. Ilene and Ling Chen, Dr. Houston Brooks, Dr. Rick Stanton, Sam Coleman, Dr. Ishirō Serizawa, Dr. Ilene Andrews, Colonel Diane Foster, Lieutenant Ford Brody, Lauren Griffin, Jackson Barnes, Anthony Martinez, Elle Brody, Madison Russell, Dr. Mark Russell, Ziyi and Yong Chen, Steve Martin, Susan Graham, Ren Serizawa, Nadezhda, Esfir and Lubyov, Sam Brody, Zima, Admiral William Stenz, Lieutenant Commander Pasternak, The Podcaster (Bernie Hayes), '''Alan Jonah''', Dr. Mariko, Tejada, Sergeant Travis, Dr. Emma Russell, Guard B-04, The Collaborators (Apex Cybernetics), The Executive (Maia Simmons), The Director (Walter Simmons).

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: The Many, [=MaNi=]/Elder Brother, Spoiler Character (The Zmeyevich), '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, Methuselah, Manda (Mandazawa), The Prototype (Kiryu), The Secret Weapon (Mechagodzilla), Ladon, Skullcrawlers, Dagon, Camazotz, The Fleet's God (Gigan), The Makers, The Fleet.

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: The Many, [=MaNi=]/Elder Brother, Spoiler Character (The Zmeyevich), '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, Methuselah, Manda (Mandazawa), The Prototype, The Secret Weapon, Ladon, Skullcrawlers, Dagon, Camazotz, The Fleet's God, The Makers, The Fleet.

* [[Characters/AbraxasHrodvitnonHumans Humans]]: Drs. Ilene and Ling Chen, Dr. Houston Brooks, Dr. Rick Stanton, Sam Coleman, Dr. Ishirō Serizawa, Dr. Ilene Andrews, Colonel Diane Foster, Lieutenant Ford Brody, Lauren Griffin, Jackson Barnes, Anthony Martinez, Elle Brody, Madison Russell, Dr. Mark Russell, Ziyi and Yong Chen, Steve Martin, Susan Graham, Ren Serizawa, Nadezhda, Esfir and Lubyov, Sam Brody, Zima, Admiral William Stenz, Lieutenant Commander Pasternak, The Podcaster, '''Alan Jonah''', Dr. Mariko, Tejada, Sergeant Travis, Dr. Emma Russell, Guard B-04, The Collaborators.

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: The Many, [=MaNi=]/Elder Brother, Spoiler Character, '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, Methuselah, Manda (Mandazawa), The Prototype, The Secret Weapon, Ladon, Skullcrawlers, Dagon, Camazotz, The Fleet's God, The Makers, The Fleet.

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: The Many, [=MaNi=]/Elder Brother, Spoiler Character, '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, Methuselah, Manda (Mandazawa), Skullcrawlers, Camazotz, The Makers.

* [[Characters/AbraxasHrodvitnonHumans Humans]]: Drs. Ilene and Ling Chen, Dr. Houston Brooks, Dr. Rick Stanton, Sam Coleman, Dr. Ishirō Serizawa, Dr. Ilene Andrews, Colonel Diane Foster, Lieutenant Ford Brody, Lauren Griffin, Jackson Barnes, Anthony Martinez, Elle Brody, Madison Russell, Dr. Mark Russell, Ziyi and Yong Chen, Steve Martin, Susan Graham, Ren Serizawa, Nadezhda, Esfir and Lubyov, Zima, Lieutenant Commander Pasternak, The Podcaster, '''Alan Jonah''', Dr. Mariko, Tejada, Sergeant Travis, Dr. Emma Russell, Guard B-04, The Collaborators.

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: The Many, [=MaNi=]/Elder Brother, Spoiler Character, '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, Methuselah, Manda (Mandazawa), Skullcrawlers, Camazotz.

'''[[Characters/AbraxasHrodvitnonKingGhidorah Ghidorah]]'''

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: '''Ghidorah''', The Many, [=MaNi=]/Elder Brother, Spoiler Character, '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, Methuselah, Manda (Mandazawa), Skullcrawlers, Camazotz.

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: '''Ghidorah''', The Many, [=MaNi=]/Elder Brother, Zmeyevich/Children of Zmei, '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, Methuselah, Manda (Mandazawa), Skullcrawlers, Camazotz.

* [[Characters/AbraxasHrodvitnonHumans Humans]]: Drs. Ilene and Ling Chen, Dr. Houston Brooks, Dr. Rick Stanton, Sam Coleman, Dr. Ishirō Serizawa, Dr. Ilene Andrews, Colonel Diane Foster, Lieutenant Ford Brody, Lauren Griffin, Jackson Barnes, Anthony Martinez, Elle Brody, Madison Russell, Dr. Mark Russell, Ziyi and Yong Chen, Steve Martin, Susan Graham, Ren Serizawa, Nadezhda, Esfir and Lubyov, Zima, Lieutenant Commander Pasternak, Bernie Hayes, '''Alan Jonah''', Dr. Mariko, Tejada, Sergeant Travis, Dr. Emma Russell, Guard B-04, Apex Cybernetics, Maia Simmons, Walter Simmons.

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: '''Ghidorah''', The Many, [=MaNi=]/Elder Brother, Zmeyevich/Children of Zmei, '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, Methuselah, Manda (Mandazawa).

* [[Characters/AbraxasHrodvitnonHumans Humans]]: Drs. Ilene and Ling Chen, Dr. Houston Brooks, Dr. Rick Stanton, Sam Coleman, Dr. Ishirō Serizawa, Colonel Diane Foster, Lieutenant Ford Brody, Lauren Griffin, Jackson Barnes, Anthony Martinez, Elle Brody, Madison Russell, Dr. Mark Russell, Steve Martin, Susan Graham, Ren Serizawa, Nadezhda, Esfir and Lubyov, Lieutenant Commander Pasternak, '''Alan Jonah''', Dr. Mariko, Tejada, Sergeant Travis, Dr. Emma Russell, Guard B-04.

* [[Characters/AbraxasHrodvitnonHumans Humans]]: Drs. Ilene and Ling Chen, Dr. Houston Brooks, Dr. Rick Stanton, Sam Coleman, Dr. Ishirō Serizawa, Colonel Diane Foster, Lieutenant Ford Brody, Lauren Griffin, Jackson Barnes, Anthony Martinez, Elle Brody, Madison Russell, Dr. Mark Russell, Steve Martin, Susan Graham, Ren Serizawa, Nadezhda, Esfir and Lubyov, Lieutenant Commander Pasternak, '''Alan Jonah''', Dr. Mariko, Tejada, Sergeant Travis, Emma Russell, Guard B-04.

* [[Characters/AbraxasHrodvitnonHumans Humans]]: Drs. Ilene and Ling Chen, Dr. Houston Brooks, Dr. Rick Stanton, Sam Coleman, Dr. Ishirō Serizawa, Colonel Diane Foster, Lieutenant Ford Brody, Lauren Griffin, Jackson Barnes, Elle Brody, Madison Russell, Dr. Mark Russell, Steve Martin, Susan Graham, Ren Serizawa, Nadezhda, Esfir and Lubyov, Lieutenant Commander Pasternak, '''Alan Jonah''', Dr. Mariko, Tejada, Sergeant Travis, Guard B-04.

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: '''Monster X''' ('''Dr. Vivienne Graham''', '''San'''), '''Ghidorah''', The Many, [=MaNi=]/Elder Brother, Zmeyevich/Children of Zmei, '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, Methuselah, Manda (Mandazawa).

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: '''Monster X''' ('''Dr. Vivienne Graham''', '''San'''), '''Ghidorah''', The Many, [=MaNi=]/Elder Brother, Zmeyevich/Children of Zmei '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, Methuselah, Manda (Mandazawa).

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: '''Monster X''' ('''Dr. Vivienne Graham''', '''San'''), '''Ghidorah''', The Many, [=MaNi=]/Elder Brother, '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, Manda (Mandazawa).

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: '''Monster X''' ('''Dr. Vivienne Graham''', '''San'''), '''Ghidorah''', The Many, [=MaNi=]/Elder Brother, '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, '''Manda (Mandazawa)'''.

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: '''Monster X''' ('''Dr. Vivienne Graham''', '''San'''), '''Ghidorah''', The Many, [=MaNi=]/Elder Brother, Thor, Mothra, Godzilla, Rodan, Scylla, Manda (Mandazawa).

* [[Characters/AbraxasHrodvitnonHumans Humans]]: Drs. Ilene and Ling Chen, Dr. Houston Brooks, Dr. Rick Stanton, Sam Coleman, Dr. Ishirō Serizawa, Colonel Diane Foster, Lieutenant Ford Brody, Lauren Griffin, Jackson Barnes, Elle Brody, Madison Russell, Dr. Mark Russell, Steve Martin, Susan Graham, Ren Serizawa, Nadezhda, Esfir and Lubyov, Lieutenant Commander Pasternak, Alan Jonah, Dr. Mariko, Tejada, Sergeant Travis, Guard B-04.

* [[Characters/AbraxasHrodvitnonHumans Humans]]: Drs. Ilene and Ling Chen, Dr. Houston Brooks, Dr. Rick Stanton, Sam Coleman, '''Dr. Ishirō Serizawa''', Colonel Diane Foster, Lieutenant Ford Brody, Lauren Griffin, Jackson Barnes, Elle Brody, Madison Russell, Dr. Mark Russell, Steve Martin, Susan Graham, Ren Serizawa, Nadezhda, Esfir and Lubyov, Lieutenant Commander Pasternak, '''Alan Jonah''', Dr. Mariko, Tejada, Sergeant Travis, Guard B-04.

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: '''Monster X''' ('''Dr. Vivienne Graham''', '''San'''), '''Ghidorah''', '''The Many''', [=MaNi=]/Elder Brother, Thor, Mothra, Godzilla, Rodan, Scylla, Manda (Mandazawa).

* [[Characters/AbraxasHrodvitnonTitansAndOtherCreatures Titans and Other Creatures]]: '''Monster X''' ('''Dr. Vivienne Graham''', '''San'''), '''Ghidorah''', '''The Many''', [=MaNi=]/Elder Brother, '''Thor''', Mothra, '''Godzilla''', '''Rodan''', Scylla, '''Manda (Mandazawa)'''.
* [[Characters/AbraxasHrodvitnonHumans Humans]]: '''Drs. Ilene and Ling Chen''', '''Dr. Houston Brooks''', Dr. Rick Stanton, Sam Coleman, '''Dr. Ishirō Serizawa''', Colonel Diane Foster, Lieutenant Ford Brody, Lauren Griffin, Jackson Barnes, Elle Brody, '''Madison Russell''', '''Dr. Mark Russell''', Steve Martin, Susan Graham, '''Ren Serizawa''', Nadezhda, Esfir and Lubyov, Lieutenant Commander Pasternak, '''Alan Jonah''', '''Dr. Mariko''', '''Tejada''', Sergeant Travis, Guard B-04.

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[[foldercontrol]]

! Monster X / Abraxas

[[folder:In General]]
!!!'''Scientific name:''' ''Titanus Abraxas''
A two-headed, half-human and half-Ghidorah "chimera" Titan, created by Ghidorah's severed head regenerating and transforming Vivienne Graham's body inside itself and transferring the head's (San's) own consciousness to her body's new second brain. It possesses bio-electrical abilities which differ somewhat from Ghidorah's, and is incapable of flight [[spoiler:at least until they achieve their final form in Chapter 17]].

* EleventhHourSuperpower: Their final form grants them a few new abilities and an instance of RemovedAchillesHeel in time for the FinalBattle.
* AdaptationalAttractiveness: {{Downplayed}}. Their second form is a bit less demonic-looking than the [[Film/GodzillaFinalWars original incarnation of Monster X]], and is even described by Mariko as beautiful. [[spoiler:It gets lessened even more by their final form]].
* AdaptationalHeroism: This fic's incarnation of Monster X fills this trope in relation to the original Toho incarnation.
* AdaptationalSuperpowerChange: They seem to lack the original incarnation's Antigravity Beams and telekinesis, instead displaying a fresh alternative set of powers with a similarly electrical nature.
* AdaptationalWimp: Whereas the Toho version of Monster X was powerful and formidable enough to be a credible rival to Godzilla, this version would implicitly likely lose if it fought Godzilla seriously. There's also the AdaptationalSuperpowerChange.
* AffectionateGestureToTheHead: Including AnywhereButTheirLips, a HeadbuttOfLove, and coiling their necks around each-other in a form of embrace. They also nuzzle Manda.
* AlienBlood: The same as Ghidorah's.
* AnArmAndALeg: [[spoiler:Subverted]]. It looks like they're gonna lose an arm in Chapter 13 [[spoiler:when the Many rips off their left arm. The damage isn't lasting]].
* AndThisIsFor: They say this in their final form before they begin VampiricDraining [[spoiler:[=MaNi=]/Elder Brother]] to death.
--->"''This is for thinking you can hurt my little boy.''"
* AnkleDrag: They pull a particularly nasty variation on the MookLieutenant they kill in Chapter 4 – specifically, San ''hooks a claw into their leg'' and drags them back.
* AntiAntichrist: It's sort of an offspring of Ghidorah, a SatanicArchetype (the Many even call it Child of the World Eater); and [[spoiler:Ghidorah's regenerating minds]] are attempting to break Viv and San [[BreakThemByTalking via talking]] [[spoiler:and want Vivienne to become Ghidorah's fourth head]], whilst Viv and San seek to remain aligned with Earth's Titans against the threat.
* AnyLastWords: They ask [[spoiler:Ichi/Eldest Brother]] as much before destroying his [[spoiler:head]] in Chapter 17:
--->"''It's customary to have a choice of last words, you know.''"
* AnywhereButTheirLips: Vivienne and San have each at one point given the other a kiss on the forehead as an affectionate gesture and a way of comforting their sibling.
* ArtificialHybrid: Monster X's body was formed by Ghidorah's severed head regenerating and altering Vivienne's body inside itself, before the first hybridised form was re-birthed from the severed head.
* BadassBoast: Its [[spoiler:two partly-merged minds]] have the below to say to [[spoiler:Ichi/Eldest Brother]] in Chapter 17. See Vivienne's folder for another example.
-->'''[[spoiler:Ichi]]: HA. YOU ARE MORE LIKE ME THAN YOU CARE TO ADMIT.'''\\
'''Monster X:''' Comes with the name. I am [[MeaningfulName Abraxas]]. I can be good... and I can be a terrible, necessary evil.
* BadPowersGoodPeople: Mothra states in Chapter 9 that Monster X has inherited Ghidorah’s powers but that doesn’t make Vivienne accountable for Ghidorah’s atrocities.
* BarehandedBladeBlock: In their final form, they block a strike from [=MaNi=]/Elder Brother's spiked appendage and [[spoiler:shatter the arm it's attached to]], by lifting their arm and striking out with electrical SuperSpeed.
* BewareTheNiceOnes: Monster X overall embodies this trope like Ghidorah embodies the {{Sadist}} -- probably helping it, it's implied that both heads have to some degree inherited Ghidorah's violent AxCrazy neurons. See San and Vivienne's respective folders for details.
---> '''Tejada''': "[…] ''for god's sake, ''do not make her angry''. ''Do not fucking piss her off''. Understand? We made her a demon.''"
* [[BigBrotherInstinct Big Brother/Sister Instinct]]: San displays this to a T when it comes to protecting Vivienne, and Vivienne comes to wholly reciprocate it when San's the one in danger.
* [[BigBrotherMentor Big Brother/Sister Mentor]]: Monster X is an interesting two-way example. Vivienne teaches San about humanity and mythology, while San in turn teaches her how to survive as a Titan, to say nothing of the emotional support they mutually provide each-other.
* BioluminescenceIsCool: Its VolcanicVeins are interpreted by certain Titans as communication like Godzilla's.
* BizarreAlienBiology: Possesses two hearts, a third lung (acting as an "oxygen bladder" when the main lungs are too damaged to work), a "pre-stomach" organ which is thought to filter out food toxins, numerous glands of indeterminate function. They also have traces of aurum (gold) in their defective first form's skin and bones, which turns into argentum (silver) after their second transformation, for the purpose of conducting their bio-electricity. Their second form has a mix of leathery skin and bony exoskeletal armor.
* BizarreAlienSenses: San can perceive electrical fields and currents in his field of vision. He can extend this sense to Vivienne via their neural link if they wish it.
* BloodFromTheMouth: Viv and San both suffer this in Chapter 14 [[spoiler:when Ghidorah violently makes psychic contact]].
* BodyHorror: In its first form, where it's in a constant state of pain, has ingrown extra fangs along the jaws; and a horrifically extreme case of ''Fibrodysplasia ossificans progressiva'' due to their {{Healing Factor}}'s defect, making it very difficult for the duo to move certain joints without risking breaking their bones.
* BreakThemByTalking: They successfully get under [[spoiler:Ichi/Eldest Brother]]'s skin by giving him the idea that perhaps he'll die permanently when they kill him, [[spoiler:and in doing so they avenge all the BreakThemByTalking that Ghidorah gleefully conducted on them]].
* ChargedAttack: They can perform the "Hold" type to release massive bursts of electrical power, but both times they've done this, it's carried the risk of severe HeroicRROD.
* CheshireCatGrin: Rodan gets this look from them in warning for bringing Manda to a Titan war-zone in Chapter 17.
* ChestBurster: [[spoiler:Once they're awakened inside Ghidorah during their final {{Metamorphosis}}, they violently rip their way out of the evil monster]].
* ColdBloodedTorture: The inhumane experiments which Jonah and his paramilitary perform on them are both the MadScientist and BeingTorturedMakesYouEvil variety. In Chapter 16, they're subject to this from [[spoiler:Ghidorah and Ni/Elder Brother's the Many form]].
* ConvergingStreamWeapon: In their final form, they can fire [[spoiler:Destroyed Thunder beams from either eye]] which form a single, concentrated beam of electrical energy.
* ComicBookFantasyCasting: Aside from San's mental voice (see his folder), in its first form, Monster X's physical voice [[https://hrodvitnon.tumblr.com/post/185815052284/ apparently sounds like]] the [[Characters/HaloOther Gravemind]] from ''Franchise/{{Halo}}''.
* CoveredWithScars: Viv and San's first form is covered thoroughly in horrific keloid scars, emphasizing Vivienne's breaking trauma.
* CurbStompCushion: They get this in Chapter 16 when [[spoiler:suffering ColdBloodedTorture by Ni/Elder Brother's Many-avatar. Vivienne is able to save San from being killed and do some damage to Ni, but Ghidorah and the Many are still present around them, before the HeroicRROD hits]].
* DarkIsNotEvil: It has dark gray, leathery skin after its second {{Metamorphosis}}.
* DeathGlare: Vivienne and San both hand out a few of these.
* DeathWail / HowlOfSorrow: A ZigZagged case occurs in Chapter 17, [[spoiler:when they let loose a noise that's simultaneously cackling and sobbing, the latter due to mourning the deaths of Thor and [[RedemptionEqualsDeath San-2/Youngest Brother]]]]. See Vivienne's folder for another example.
* DecompositeCharacter: In this continuity, Keizer Ghidorah is a separate creature from Monster X instead of being its OneWingedAngel.
* DeepSleep: Viv and San seem to fall into this in the aftermath of a HeroicRROD, and it's implied they might've entered a NearDeathExperience during it.
* DisapprovingLook: They both try to give [[spoiler:Manda]] one when the latter wanders off.
* DivingSave: They pull one to save [[spoiler:Mothra]] from being crushed by [[spoiler:Keizer Ghidorah]] in Chapter 17.
* DraconicHumanoid: [[spoiler:Their final form is upright-standing with a roughly humanoid build, and besides the PrehensileTail has retractable bat-like wings on the back for flying]].
* DramaPreservingHandicap: For the first several chapters, their PowerIncontinence feeds their problems with escaping their imprisonment.
* EmergencyTransformation: [[spoiler:Ghidorah]] inflicts a third and final {{Metamorphosis}} on San and Vivienne in [[https://www.fanfiction.net/s/13357907/16/ Chapter 16]], in order to keep Vivienne alive and her mind intact after a HeroicRROD [[spoiler:tears Monster X apart]].
* EnergyAbsorption: They can absorb electrical energy to feed and strengthen their attacks.
* EurekaMoment: They have one in Chapter 17, realizing [[spoiler:the key to successfully mastering their violent fits]].
* EyeAwaken: Besides the examples under San's folder, when he and Vivienne are reborn in their final form, their [[spoiler:new shared single head]] pulls this trope off rather dramatically.
* EyeBeams: [[spoiler:In their final form, Viv and San gain the ability to fire Gravity Beam-like Destroyed Thunder from their eyes, an ability which the [[Film/GodzillaFinalWars original Toho incarnation of Monster X]] possessed]].
* FacialHorror: In their first form; Vivienne's head is rather skull-like with ingrown fangs, while San's head at first doesn't have a mouth in addition to looking under-developed.
* [[FireForgedFriends Fire-Forged Siblings]]: They go through months of ''hell'' together before they form a mutual emotional bond, rendering them as inseparable mentally as they are [[TwoBeingsOneBody physically]].
* FlawedPrototype: The defective first form's downsides were completely unintended on San's part. According to Word Of God [[https://archiveofourown.org/comments/247897682 here]], the defects occurred due to San not understanding how human bodies biologically work nor how long a gestation period was really required for the hybrid.
* FlippingTheBird: Vivienne mainly does this, but San is picking up on it.
* FoeTossingCharge: They bulldoze through Jonah's mercenaries pretty much by trying to ''flee'' in Chapter 2.
* FusionDance: Viv and San are TwoBeingsOneBody from the get-go. However, [[spoiler:in their single-headed final form they also become The Composite with a MentalFusion]].
* GenderBender: A TwoBeingsOneBody Titan consisting of a "male" alien and a formerly-human female. Characters primarily refer to Monster X generally as female (likely due to Vivienne being the "main" head), but the author [[https://hrodvitnon.tumblr.com/post/638048240187621376/ confirmed]] that Monster X is biologically hermaphroditic, and she furthermore suggested that its sex organs cyclically metamorphose between male and female.
* GentleGiant: A monstrous Titan feared by humans not least for its resemblance/relation to Ghidorah, who is actually a case of BewareTheNiceOnes and is very friendly towards Vivienne’s human friends.
* GiantFlyer: [[spoiler:It becomes this in its final form, gaining retractable wings]].
* AGirlAndHerX: PlayedWith. If the girl and the X are TwoBeingsOneBody, then Viv and San definitely have shades of this. Vivienne is already a grown woman before being eaten by Ghidorah and turned into San's new sister, and Viv and San's subsequent bonding puts Vivienne on the path to mental recovery from severe PTSD.
* GlowingEyesOfDoom / RedEyesTakeWarning: In Chapter 4, when San takes control and brutally slaughters Jonah's mercenaries. And again in their final form during the FinalBattle.
* GoodColorsEvilColors: Besides the DarkIsNotEvil and RedIsHeroic, their second form has visible traces of silver in its bone armor, in contrast to Ghidorah's and the Many's gold.
* GoodCounterpart: To Ghidorah; being a multi-headed Titan consisting of multiple "sibling" beings for either head, with similar powers and [[spoiler:a similar origin]] to the alien monster. But Vivienne and San are benevolent and want to live in peace, whereas Ghidorah is utterly sadistic and finds purpose in destruction. Vivienne specifically has an EvilCounterpart in Ghidorah's middle head, and San has one in the right head's [[spoiler:Many shed skin]] (see their respective folders for details).
* GoodLipsEvilJaws: {{Inverted}} and ZigZagged, when they're in their toothy first form and their main enemies are asshole humans.
* GoThroughMe: The nature of their fight against the Many at Yonaguni.
* HeadbuttOfLove: Viv and San have one when San is attempting to comfort Vivienne in Chapter 11. They also more than once brush the other's horns and jawline as an affectionate gesture.
* HealingFactor: Like Ghidorah, but with a difference when it comes to lost limbs. In their first form, a defect results in extra bone matter growing in place of lost flesh, which is gradually immobilizing their body parts and makes it extremely difficult for them to move without breaking their bones. The defect’s fixed during their [[EmergencyTransformation Emergency]] {{Metamorphosis}}.
* HeroicBuild: The [[ImageLinks/AbraxasHrodvitnon author's artwork]] depicts their second and final forms with brawny limbs and a toned, muscular chest.
* HeroicNeutral: At first San and Vivienne are this, as their main objective is to escape their imprisonment to freedom.
* HeroicRROD: The duo suffer this in [[https://www.fanfiction.net/s/13357907/6 Chapter 6]] when Vivienne overuses their powers in their first form, effectively microwaving their partly-human organs -- then in Chapter 16, they suffer a more devastating [=RRoD=]. Their HealingFactor keeps them alive, but it's still ''not pretty''.
* HitAndRunTactics: They use a bit of this when engaging and mutilating [=MaNi=]/Elder Brother in Chapter 17.
* HorrorDoesntSettleForSimpleTuesday: PlayedWith. Their first, more horror-laden rebirth occurs on or very shortly after the New Year.
* HugeGuyTinyGirl: PlayedWith; and a non-romantic but very [[PlatonicLifePartners life-partner]] example. San and Vivienne before their fusion were a human woman of short stature and one of the heads of the largest Titan on record, respectively.
* ImpaledWithExtremePrejudice: Suffers this while battling in Chapter 13.
* ImprovisedWeapon: In Chapter 17, they use a metal cross ripped from a church steeple as an impaling weapon.
* InASingleBound: It's capable of propelling its body through the air via electrical pulses.
* InSeriesNickname: Is designated Subject G by Jonah’s paramilitary. San's head is distinguished from Vivienne as Subject G-1a once they become aware the creature is TwoBeingsOneBody.
* InstantExpert: San picks up the English vocabulary directly from Vivienne's brain. According to the author, Vivienne in turn is able to use her Bone Singer ability fluidly despite her lack of experience when human due to "piggybacking" on San's [[https://hrodvitnon.tumblr.com/post/631249528601935872/ natural understanding of Titans' communication]].
* ItsRainingMen: Rodan drops them off next to Yonaguni this way in [[https://www.fanfiction.net/s/13357907/13/ Chapter 13]].
* JaggedMouth: In their first form, Viv and San have this trope's first and fourth types (hinting at animalistic nature and also a horrific-looking but ultimately benevolent creature). Vivienne's head has ingrown serrated teeth on either side of her jaws, whilst the author's art depicts San's head with a jagged mouth-shape.
* TheJuggernaut: It takes a ''lot'' of punishment to even slow Monster X down when it really gets going.
* {{Kaiju}}: Monster X is officially classified as a Titan. In their first form, they're roughly the size of a Skullcrawler, and after their second transformation, they're almost the same size that Kong was in ''[[Film/KongSkullIsland Skull Island]]'', as [[https://hrodvitnon.tumblr.com/post/620940544685834240/ this official artwork by the author demonstrates]].
* LightFlickerTeleportation: They pull a Lightning-Flash Flicker Teleportation on [=MaNi=]/Elder Brother during the FinalBattle.
* LightLiegeDarkDefender: Somewhat. At first, San and Vivienne have this kind of dynamic, although since becoming a SiblingTeam they're roughly equal in terms of BewareTheNiceOnes.
* LightningBruiser: It's large, fast and extremely tough.
* LightningReveal: [=MaNi=]/Elder Brother spots them via a lightning-flash amid the darkness in Berezniki in Chapter 17.
* LogicalWeakness: It's speculated in Chapter 16 and [[https://hrodvitnon.tumblr.com/post/656464198292881408/ confirmed by the author]] that because of how differently Monster X's HealingFactor works compared to Ghidorah's, [[spoiler:it can't regrow a duplicate if San or Vivienne's head is decapitated from it]].
* LongLived: [[spoiler:Ghidorah's middle head]] implies in Chapter 14 that Monster X is this at the very least, and it's probably even TheAgeless like Ghidorah.
* MacGuffinSuperPerson: They've become this after [[spoiler:Ghidorah's minds have regenerated]], with [[spoiler:Ghidorah actively wanting Vivienne back for [[BabyFactor particularly vile]] [[TheAssimilator purposes]]]].
* MartialPacifist: They're very much this, trying to avoid unnecessary fighting but proving incredibly fearsome when pushed the wrong way.
* MeaningfulName: It was named Monster X in reference to Ghidorah's Monster Zero designation, due to the two-headed Titan's resemblance. Its ProtagonistTitle name in Chapter 10 is based on the [[UsefulNotes/{{Gnosticism}} Gnostic figure]].
* MentalFusion: [[spoiler:Once Monster X metamorphoses into its final form, Viv and San apparently experience this, with both their minds residing in a single head and now speaking in perfect unison, although either voice can become more or less prominent depending on what stimulus they're responding to. Either half can also have a different reaction to the same thing based on either personality]].
* {{Metamorphosis}}:
** Monster X is formed inside San's decapitated head by him reviving, regenerating and transforming Vivienne's body via feeding his own enzymes into her system, before eventually being (re)born from the head, and it's not all that dissimilar to a real-life metamorphosis.
** A second, shorter metamorphosis is instigated externally by Mothra in [[https://www.fanfiction.net/s/13357907/7 Chapter 7]]. This one technically counts as something of an EmergencyTransformation, fixing Monster X's PowerIncontinence and BodyHorror.
** The third and final metamorphosis [[spoiler:is instigated by Ghidorah as an EmergencyTransformation to keep Vivienne alive]].
* MetamorphosisMonster: Has gone through two different forms so far over the course of the story, and [[https://hrodvitnon.tumblr.com/post/616668234453794816/ the author has indicated they're due for one more transformation before reaching their final form]].
* MixAndMatchCritters: {{Justified}} by its hybrid origin. Monster X's first form resembles a reptilian humanoid monstrosity, and their second form is noted in [[https://www.fanfiction.net/s/13357907/10 Chapter 10]] to possess a mix of reptilian and mammalian anatomy.
* MonstrousHumanoid: Its first form is recognizably somewhat human. In its second form, San and Vivienne lose most physical remnants of Vivienne’s humanity. For San, this qualifies as temporarily being a HumanoidAbomination.
* MorphicResonance: Both heads retain their respective original eye colors throughout every transformation. San's head retains the same structure as Ghidorah's three heads. Vivienne loses her human form's facial structure after the second {{Metamorphosis}}, but there are few recognizable physical traits (such as the foreclaws' shape) that can identify her individually.
* MultipleHeadCase: Of the TwoBeingsOneBody type. Vivienne's mind occupies the main head (formerly her human form's head before the transformation), while San occupies the secondary head; analogous to how Ghidorah's three heads shared a body. They're also able to switch (or forcibly seize) control of limbs or their whole body from each other.
* NearDeathExperience: They seem to have one before Mothra revives them during their encounter in Chapter 7, similar to Madison's in the movie. See San's folder for another example.
* NeutralNoLonger: When [[spoiler:the regenerating Ghidorah]] becomes an active threat, San and Vivienne are part of the Titans' fight against it.
* NoSell: San and Vivienne can take a lot of punishment, particularly when enraged to action.
* OddFriendship: Viv and San's sibling bond is seen as this by Monarch once they become aware of Monster X's true nature.
* OhCrap: Viv and San share one in Chapter 13 when their arm is [[spoiler:severed and they don't grow a new one after several seconds]].
* OneManArmy: It proves to be this when agitated. Even when it's first reborn, in Vivienne's agitated state it kills multiple mercenaries and [[NoSell No-Sells]] their ammunition before they manage to get it behind a containment field. After the second {{Metamorphosis}}, if Vivienne and San are pissed off, they can go toe-to-toe with mature and more experienced Titans.
* OurDragonsAreDifferent: A two-headed hybrid Titan (human and Ghidorah) with leathery skin and bony protrusions, created by San transforming and essentially merging with Vivienne -- as a result of the latter characteristic, the two heads' minds essentially have AGirlAndHerX esque dynamic. In their second form, they have no wings and are mainly quadrupedal like eastern dragons -- in their final form, [[spoiler:they're a DraconicHumanoid with [[RetractableAppendages retractable wings]] that enable flight]]. Viv and San have Ghidorah's bio-electricity, but their specific powers differ somewhat and they generate orange-tinted lightning. They're also essentially the "offspring" of a SatanicArchetype DraconicAbomination, but they're highly benevolent and highly fierce.
* ParentalSubstitute: They seem to be juggling the duty of rearing Manda with Godzilla and Rodan after his birth. See San and Vivienne's respective folders below for individual examples.
* PercussiveMaintenance: They cause this in Chapter 6 by feeding enough of their powers' electrical energy into the [[spoiler:Ural]] outpost.
* PhlebotinumOverdose: Absorbing too much of [[spoiler:[=MaNi=]/Elder Brother]]'s electrical energy causes [[spoiler:the massive muscle overstimulation to tear Viv and San's body apart, nearly killing them]].
* PhlebotinumRebel: It's implied Ichi/Eldest Brother wanted the result of Vivienne's Metamorphosis to be subservient to him before San's decapitation, and fortunately San has the [[MinionWithAnFInEvil personality traits]] that lay the groundwork for his HeelFaceTurn.
* PintSizedPowerhouse: They're comparatively small by most Titans' standards, but ''[[HorrifyingTheHorror Rodan]]'' is mesmerized by what they're capable of during an UnstoppableRage.
* PlatonicLifePartners: Specifically Sibling Life-Partners.
* PostVictoryCollapse: Downplayed. After [[spoiler:the partly-resurrected Ghidorah's body is destroyed and Monster X personally kills the last head]], they collapse on their back amidst a laughing/crying fit. They quickly pick themselves up to find [[spoiler:Manda]].
* PowerDegeneration: It's implied Monster X would've suffered this had the duo's {{Healing Factor}}'s serious design flaw not been fixed, as [[LampshadeHanging lampshaded]] by Mariko in Chapter 14.
* PowerEchoes: Besides San's case (see his folder for details), in [[spoiler:their final form]] their dual voices are described as echoic.
* PowerGlows: When its powers are being used, or when they flare due to Vivienne experiencing sudden or strong emotions, producing an autumn-orange glow.
* PowerIncontinence: {{Inverted}}. In their first form, Monster X has too few traces of metal in its body to conduct electricity like Ghidorah did, and they struggle to awaken their electrical powers. They succeed by using emotions such as hatred or anger.
* ThePowerOfHate: This helps wakes up their PsychoactivePowers in Chapter 6.
* PrehensileTail: Their tail can be used for strangling in a fight.
* PsychoactivePowers: Its powers are fuelled by negative emotions such as hate or (a more easily-controllable one) anger, just as Ghidorah's powers were.
* PupatingPeril: During both Metamorphoses, Monster X draws this kind of awe and anxiety from humans waiting to see what will emerge.
* QuizzicalTilt: They do this rather nightmarishly whilst in the process of [[spoiler:ripping apart [=MaNi=]/Elder Brother]], in Chapter 17.
* RapidFireNo: Both Viv and San are respectively inclined towards making these when they're distressed about something.
* RedIsHeroic: It produces autumn-colored lightning.
* RedIsViolent: Ultimately ZigZagged. Their powers which produce red light or lightning are usually triggered by emotions such as anger and hate, but great enough joy or happiness can also get a bioluminescent red pulse out of them.
* ReluctantPsycho: Viv and San's part-Ghidorah biology influences their capacity for psychotic brutality when one or both of them is sufficiently enraged or panicked, but it fortunately only takes over their actions if they're pushed too far -- [[https://hrodvitnon.tumblr.com/post/653745095218266112 according to the author]], in Viv and San's case it's like an aftertaste of what Ghidorah experiences. More than this, Viv and San have issues dealing with Vivienne's untreated PTSD and both are saddened by it.
* RemovedAchillesHeel: Monster X's metamorphosis into their final form enables them to stimulate their muscles via ShockAndAwe to produce bursts of speed and movement, without the risk of it tearing their body apart. See San's folder for another example.
* RetractableAppendages: {{Downplayed}} in their final form. [[spoiler:They have giant wings which fold and reshape into an [[https://en.wikipedia.org/wiki/Elytron elytron]]-like bone casing when not in use]].
* RoarBeforeBeating:
** They attempt pulling this during a training scuffle with Godzilla based on wolverines' fighting style in Chapter 9.
** Come Chapter 17, and they basically have a war chant for the other Titans before fighting [[spoiler:Keizer Ghidorah]]:
--->"''RIP AND TEAR!''"
** See Vivienne's folder for another example.
* SayMyName: One of them (it's actually hard to tell which head) screams Jonah's name in rage when they rampage in Chapter 6.
* SerpentOfImmortality: Downplayed, but it has a serpentine quality to it, and it's indicated in Chapter 14 that it'll live at least for thousands of years, possibly even forever if not killed.
* ShockAndAwe: Has inherited Ghidorah's bio-electricity, referred to by San as "the storm", although Monster X's abilities aren't quite the same as Ghidorah's. Instead of unleashing Gravity Beams or forming typhoons, Monster X gives off blasts of electrical energy through its body and legs.
* ShutUpHannibal: Both San and Vivienne repeatedly tell [[spoiler:Ghidorah's voices]] to shut up -- [[spoiler:the voices]] either keep pestering them or will come back for more later. They ultimately deliver this to [[spoiler:Ichi/Eldest Brother]] face-to-face in Chapter 17:
---> '''[[spoiler:Ichi: THIS IS BUT THE ADDITION OF TIME TO AN OLD SENTENCING. WE WILL BE BACK. WE WILL ALWAYS COME BACK, ONE WAY OR ANOTHER]].'''\\
'''Monster X:''' Not if we find all the pieces first. But even if we don't, we'll still be there to kick your ass all over again.
* SiblingTeam: Vivienne and San are considered brother and sister after their merger (analogous to Ghidorah’s heads being brothers), and they eventually become this kind of team; learning to work together and becoming each-other’s emotional crutches.
* SiblingYinYang: Characters note InUniverse how San and Vivienne are polar opposites in many regards yet are an [[VisualPun inseparable]] SiblingTeam. It influences their scientific MeaningfulName.
* SignatureRoar: The author has [[https://archiveofourown.org/works/20059573/chapters/54974494?view_adult=true mentioned]] Monster X has the same vocalizations as the original Toho incarnation (at least Vivienne's head does, as San's head is implied to have the same roar as Ghidorah).
* SlasherSmile: Besides Vivienne's individual example under her folder, they give [=MaNi=]/Elder Brother and then [[spoiler:Ghidorah]] a couple of these when fighting against either of them in Chapter 17.
* StunnedSilence: Viv and San have a very brief one when Thor mentions his son's death in Chapter 13.
* SuperReflexes: Physically, it can move its body with SuperSpeed in its final form, and it's no slouch in terms of reacting in time.
* SuperSenses: Alongside San's [[BizarreAlienSenses Bizarre Alien Sense]], the conventional five senses he has are extremely heightened compared to humans'.
* SuperSpeed: Once they reach their final form, they become capable of safely doing this with their ShockAndAwe powers. It works the same way a lightning strike causes involuntary muscle contractions that can throw a person backwards, but much more powerful.
* SuperToughness: Conventional weaponry which would ''obliterate'' an armoured human barely slows them down and takes time to seriously maim them – and that was when the duo were still in their FlawedPrototype first form.
* SurvivalMantra: Reciting the Elder Futhark has become a psychological one which helps gives Vivienne some mental defense or shelter from impending psychological trauma. Her MadnessMantra (see her folder) is also a very extreme and fragile Survival Mantra.
* SwallowedWhole: Besides how Ghidorah originally ate Vivienne, and the example under San's folder; [[spoiler:in Chapter 16, the partly-regenerated Ghidorah takes Monster X into its BellyMouth to instigate their next {{Metamorphosis}}]].
* TailSlap: Their tail can be used offensively as a deadly whip this way.
* TalkingInYourDreams: Due to their TwinTelepathy, San and Vivienne can share dreams when they sleep.
* TeethClenchedTeamwork: With Mariko in Chapter 6, whom neither San nor Vivienne wholly trust.
* ThemeNaming: Its scientific MeaningfulName continues the tradition of Titans being named after mythological figures and deities.
* TranquilFury: Monster X is frighteningly quiet and calm while it brutally grants [[spoiler: [=MaNi=]/Elder Brother]] his much-deserved RasputinianDeath.
* TransformationHorror: Viv and San's first transformation specifically involves Horrifying Metamorphosis, with Vivienne experiencing a couple violent "spurts".
* TrashTalk: Viv and San use this against Jonah while fighting [[spoiler:the Many MindHive he's linked to]] in Chapter 13.
* TroubledFetalPosition: They, mainly Vivienne when she's controlling their body, go into this position a couple times when Vivienne's confused or has just had a PTSD episode.
* TwinTelepathy: San and Vivienne are able to communicate with each-other this way in addition to vocal communication, due to their shared nervous system below the necks. It also causes them to share impressions of each-other's emotions. They're even able to let the other view and experience their memories.
* TwoBeingsOneBody: Monster X was formed by San transforming Vivienne into a part-Ghidorah hybrid while BrainUploading his consciousness to be the mind of her body's new second head.
* TwoFaced: Besides the example listed under San's folder, both their heads suffer this [[spoiler:due to their second HeroicRROD in Chapter 16]].
* UndyingLoyalty: Viv and San have started exhibiting this towards each-other.
* VampiricDraining: San's head apparently retains this ability from when he was part of Ghidorah, and he attempts to use it defensively against [[spoiler:[=MaNi=]/Elder Brother]] in Chapter 16. Monster X in its [[spoiler:single-headed final form]] uses this ability to slowly kill [[spoiler:[=MaNi=]/Elder Brother]].
* VictoriousRoar: {{Subverted}} in Chapter 17. After Viv and San have finally seen the monster that's caused them so much suffering killed, all they can bring themselves to do is simultaneously giggle in triumph and bemoan the deaths the battle entailed equally.
* VisualPun: They're physically inseparable in that they're literally TwoBeingsOneBody, which fits with the close emotional bond they develop.
* VoicesAreMental: ZigZagged. Both San and Vivienne's respective physical voices emitted from their respective mouths in their first forms are [[https://hrodvitnon.tumblr.com/post/185815052284/ described by the author]] as sounding like the Gravemind in ''Franchise/{{Halo}}'', and only when they scream do their voice/s prominently sound like a mix of Ghidorah's roar and a human scream. After [[{{Metamorphosis}} metamorphosing]] into their second form, San and Vivienne communicate with humans via radio waves; San's radio voice is indicated to be the same as his mental voice, while Vivienne is able to produce words in her original human voice this way.
* VolcanicVeins: This is one of the main ways their PowerGlows manifests.
* WalkingTechbane: ZigZagged. They can cause appropriately Titan-level power fluctuations around technology, but they also at one point instead cause PercussiveMaintenance.
* TheWorfEffect: {{Downplayed}} (see PintSizedPowerhouse). It's implied that they can make Thor or Rodan work to beat them in a proper fight, but wouldn't stand a chance at defeating Godzilla if they fought seriously in their second form.
* YouDontLookLikeYou: {{Downplayed}}, but Viv and San's second form is quite distinct appearance-wise from the Toho films' original incarnation of Monster X. [[spoiler:Completely {{subverted}} by their final form]].
* YourWorstNightmare: They (particularly Vivienne) are on the receiving end of this from [[spoiler:Ghidorah]] during their sleeping hours.
[[/folder]]

[[folder: Dr. Vivienne Graham]]
A prominent Monarch scientist who had a close relationship with Dr. Serizawa. She was SwallowedWhole by Ghidorah (Ichi/Eldest Brother) in Antarctica, before being stored inside San's head to be revived and transformed; forming San's new sister as part of Monster X. She functions as the main head.

----

* ActionGirl: Due to her Titan transformation and all the combat that comes with such a life.
* AdultFear: {{Inverted}} and PlayedStraight by [[spoiler:Ghidorah]] and the Many threatening to go after [[spoiler:Susan and Madison]]. The thought of some vile and murderous enemy telling you they know where your loved ones are and threatening them very much crosses into this trope's territory.
* AffectionateNickname: Somewhat. San usually calls Vivienne "sister" (after merging with her) and "Bone Singer".
* AfraidOfTheirOwnStrength: She's afraid both of hurting humans if she so much as touches them due to her {{Kaiju}} size, and she's also wary of getting blood-drunk when using her and San's "storm".
* AmbiguouslyBi: There's a casual hint in Chapter 10 that she's bisexual.
* ArbitrarySkepticism: She never believed that aliens might exist -- at least not ones vaguely resembling humans -- until San tells her in Chapter 10 of his and his brothers' past encounter with such a species they exterminated.
* AscendedExtra: She's one of the two main {{protagonist}}s of the story with a healthy and delightful amount of characterization and CharacterDevelopment to go with it, alongside San. In Film/MonsterVerse canon, she's been considered by the fandom a SatelliteCharacter and a case of They Wasted a Perfectly Good Character (especially after she was killed off in ''King of the Monsters''), and Hrodvitnon is a Creator/SallyHawkins fan who is openly on the [=TWAPGC=] train.
* BabyFactory: It's revealed in Chapter 16 that [[spoiler:Ghidorah intends to forcibly impregnate her with a "Death-Child"]].
* BackFromTheDead: She technically was temporarily dead after being SwallowedWhole by Ichi/Eldest Brother, before being ejected into San's neck where she was forcefully revived and kept alive in a comatose state. Apparently, [[ArtisticLicenseBiology her brain activity temporarily ceased before her faculties were restored intact]].
* BadassBoast: She has the below one for Jonah when she and San are about to escape containment in Chapter 6. See the General folder for another example.
--->"''Did you think us defeated? Broken down to be your tool? Did you think yourself like Odin, all-seeing and all-knowing? Binding us like Fenrir, foretold to bring about great destruction at the time of Ragnarök? For all his wisdom and insight and knowledge, did it ever occur to Odin that by binding the wolf he was only creating a self-fulfilling prophecy? Fenrir's sons will devour the sun and moon, Gleipnir will break, and Fenrir will have his vengeance on Odin. This fetter will break...''"
* BeautyToBeast: She's acknowledged as having been a looker when she was human, whereas her and San's first form is a real case of BodyHorror (though her face is still recognizable upon close inspection). Later somewhat reversed; her and San's complete second form is even more bestial than their first form, but is acknowledged as being no less beautiful than any non-hybrid Titan.
* BeCarefulWhatYouWishFor: PlayedWith. Canon [[AllThereInTheManual Manual]] materials state she always sought a life of adventure, and it's mentioned in [[https://www.fanfiction.net/s/13357907/12 Chapter 12]] that she used to hope she could wake up at Castle Bravo to seeing Godzilla. Both those things are certainly recurring parts of her life now.
* BecauseYouWereNiceToMe: Whilst she is San's MoralityPet, the lengths he goes to caring for her throughout their imprisonment (which is far more than their human captors are giving her) influence her bonding with him in turn.
* BeingTorturedMakesYouEvil: Jonah attempts to psychologically break her via ColdBloodedTorture, as does [[spoiler:Ghidorah]] later.
* BerserkButton: Deriding her relationship with the late Serizawa and threatening her loved ones are ill-advised. It's also advisable that one avoid directly reminding her of Ghidorah and triggering her PTSD. For a less violent example, she healthily loathes Admiral Stenz because of his previous and recent NukeEm actions.
* TheBerserker: So far, this is the state she's often gone into in fighting. Because it's uncontrollable and she tends to lose herself, she and San agree that she needs to learn to control it.
* BewareTheNiceOnes: She was already of the YouWouldntLikeMeWhenImAngry variety when she was human, and her temper is certainly no less fierce after her transformation into part of Monster X. Additionally, she now has more {{Berserk Button}}s due to her TraumaCongaLine and PTSD.
* BigNo: When she freaks over [[spoiler:Susan Graham]]'s presence at Yonaguni in Chapter 15, and when she realizes [[spoiler:[[BabyFactory what Ghidorah is going to do to her first]] before it assimilates her]].
* BigShutUp: She throws a couple of these when someone derides her relationship with Serizawa.
* BlankStare: She playfully gives Madison a joking one when the latter teasingly asks her to perform a dance in [[https://www.fanfiction.net/s/13357907/8 Chapter 8]].
* BloodFromTheMouth: Besides the example she shares with San (see above folder), blood ''geysers'' from her mouth during the HeroicRROD.
* BreakTheCutie: She endures this over the course of the story’s first five chapters, leading to her [[TookALevelInBadass Taking A Level in Badass]] – and her TraumaCongaLine isn’t over yet.
* BusmansVocabulary: A mild case, but it shows at times that she's affluent in mythology and has an interest in the past.
* CessationOfExistence: It's revealed [[spoiler:in Chapter 5]] that she apparently experienced this temporarily when she was OnlyMostlyDead. It's [[https://hrodvitnon.tumblr.com/post/637986068089716737/ implied by the author]] and [[spoiler:confirmed in Chapter 17]] that not all beings InUniverse experience this upon permanent death, as {{Reincarnation}} is possible.
* TheConscience: She seems to mainly serve this function among the duo, whereas San tends to be True Neutral when it comes to aiding others.
* CruelAndUnusualDeath: Her initial death when Ichi/Eldest Brother ate her alive. It's confirmed she didn't die right away when he ate her, and she was aware of what was happening.
* DeadpanSnarker: She has a few moments.
* DeathAmnesia: She doesn't know whether or not she literally died when she was SwallowedWhole by Ghidorah, until Chapter 5.
* DeathByIrony: Jonah lampshades the cruel irony of her death by Ghidorah in Antarctica.
* DeathWail / HowlOfSorrow: Gives a particularly horrific one after learning of Serizawa's death. It was literally heard by the bioacoustics-oriented Titans across a considerable distance...
* DeerInTheHeadlights: She has this reaction when she first sees [[spoiler:[=MaNi=]/Elder Brother]] and her PTSD triggers, in Chapter 15.
* DeityOfHumanOrigin: After being transformed from a human into half of a TwoBeingsOneBody Titan, she and her brother are considered as much a PhysicalGod as the other Titans. She lampshades this in [[https://www.fanfiction.net/s/13357907/12/ Chapter 12]].
* DisappearedDad: The matter of her biological father who died before she was born is sometimes PlayedForDrama, including in relation to how it influenced her ParentalSubstitute bond with Serizawa.
* DoesNotKnowHerOwnStrength: She has a claw variation of this upon her rebirth as half of Monster X. Not yet aware of her new Titan body's strength or sharp claws, she accidentally guts one of Jonah's men and [[HalfTheManHeUsedToBe rips him in half]].
* EyeColourChange: Her hazel eyes experience this when her and San's GlowingEyesOfDoom kick in and create RedEyesTakeWarning (see the above folder for details).
* EyeScream: InUniverse, Vivienne balefully remembers one of Jonah's {{Mook Lieutenant}}s shooting her in her eye, long after it occurs in Chapter 4.
* {{Facepalm}}: She pinches the bridge of her nose in Chapter 9 when snapped out of an unpleasant reverie.
* FaceYourFears: In Chapter 16, she [[spoiler:tears her way into [=MaNi=]/Elder Brother's mouth and throat to save San]], this despite her phobia of monstrous jaws due to her death in Antarctica.
* FateWorseThanDeath: Ichi/Eldest Brother intended to inflict this on her when Ghidorah began transforming her. Even with her and San's separation from Ghidorah, she agrees that it would've been more merciful if Ghidorah had just killed her outright.
* FirstNameBasis: She's referred to by her first name by San (when he uses her name) and by the Russell's in particular.
* FlatWhat: This is her mental first response when Mariko gives her the first clear hint that Serizawa is dead in Chapter 4.
* ForgottenFallenFriend: Jonah suggests while trying to break Vivienne down that she's this to Monarch, in Chapter 5. [[spoiler:{{Subverted}}]] two chapters later.
* FourIsDeath: [[spoiler:Ghidorah's EvilPlan for her is to turn her into its fourth head ("dreaded number four", she notes). Made all the more fitting by the fact Ghidorah's heads all have Japanese numerals as their [[InSeriesNickname In-Series Nicknames]]]].
* FriendToAllChildren: Besides her relationship with Madison, she used to babysit Ilene's twin daughters, who regard her fondly. A deleted scene showed her scaring off a mercenary who was stalking two DisposableVagrant children with but a DeathGlare.
* FullNameUltimatum: [[spoiler:Susan screams Vivienne's first and last name when Vivienne is freaking out, immediately silencing Viv]], in Chapter 15.
* GoMadFromTheIsolation: Spending months locked in a sealed chamber with insomnia and no track of time gets to her, although San helps her cope and subvert the effects by being talkative and curious.
* GoodCounterpart: She's specifically one to Ichi/Eldest Brother; who is essentially what Vivienne could've become if she gave in to her torments, became hateful and abused San.
* HappyPlace: In Chapter 4, she tries to drown out Guard [=B-04=]’s abuse and avoid thinking of Ghidorah by reciting geological time periods.
* HeroicBSOD:
** She's thrown into a gut-wrenchingly severe one after she discovers Serizawa is dead in [[https://www.fanfiction.net/s/13357907/4 Chapter 4]], coming pretty damn close to the DespairEventHorizon. She only comes out of it right when San hits his own [=BSoD=]...
** In Chapter 16, she's initially thrown into catatonia by her PTSD, forcing San to initially do all the defending-their-life work.
* HeroicResolve: In Chapter 16, [[spoiler:Ni/Elder Brother ripping San's head off and attempting to devour him]] triggers a fierce case of this in Vivienne.
* HistoryRepeats: It's eventually revealed that she's at risk of this happening to her if Ghidorah's plan for her comes to fruition. [[spoiler:Getting forcibly fused to another being to form a multi-headed Titan and furthermore being "caged" and tortured, is also Ghidorah's origin story, which culminated in Ghidorah eventually becoming the evil OmnicidalManiac it is]].
* HonoraryAunt: Besides being viewed by Madison as a ParentalSubstitute (see below), Madison also calls her "Aunt Viv".
* IllKillYou: She mentally screams as much in graphic detail a couple times, when she ''really'' gets pissed off by her loved ones being seriously threatened.
* InhumanHuman: Particularly in her and San’s first hybridized form, where she’s essentially revived from being OnlyMostlyDead but is no longer human and their first form is a FlawedPrototype with BodyHorror.
* InTheBlood: Her Bone Singer potential is apparently hereditary, and the first chapter event hints her lifelong [[TheXenophile Xenophilia]] might be influenced by it.
* IShallTauntYou: [[spoiler:She tries to bait Jonah, who's attached to one of the Many's {{Mind Hive}}s, in Chapter 13, to get a psychological advantage]].
* IWillFindYou: {{Inverted}}. Once again seeing her friends, her mother and Serizawa (before she learns of his death) who don't know of her revival is what motivates her to escape her and San's imprisonment by Jonah.
* {{Jawbreaker}}: {{Downplayed}} in [[https://www.fanfiction.net/s/13357907/2/ Chapter 2]] when artillery from Jonah's mercs badly damages her jaw.
* LastNameBasis: PlayedWith. She's frequently but not always referred to by her last name by other Monarch operatives.
* LaughingMad: She ends up toeing this in Chapter 16 when [[spoiler:[=MaNi=]/Elder Brother trying to kill San]] makes her flip.
* LikeADaughterToMe: To Serizawa, like in canon. Learning of his death sends her into a ''severe'' [=BSoD=], and she goes as far as calling him "father" in both Japanese and [[AnimalTalk Kaiju Talk]] afterward.
* LikeBrotherAndSister: Vivienne's father-daughter relationship with Serizawa is a variation. It's mentioned in Chapter 4 that Monarch operatives debated whether or not the nature of their closeness was romantic.
* LipLosses: In Monster X's first form, her lips are partly shredded and gone at the sides due to developing ingrown, Ghidorah-like fangs.
* LittleNo: She gives a string of the first type when refuting [[spoiler:Ghidorah]] with a NotSoSimilar speech (see below).
* LockedOutOfTheLoop: Having been comatose and regenerating for half a year, she's at first out of the loop on multiple events that happened after Antarctica. There are still some details she's only now catching up on.
* MadnessMantra: This is a recurring mental phrase when her PTSD is really kicking into high-gear:
--> "''DON'T LOOK UP YOU'LL DIE IF YOU LOOK UP''"
* MamaBear: Her blood boils at the thought that Ghidorah hunted Madison from sport in Boston. And Manda is no exception.
* MayflyDecemberFriendship: It's indicated by [[spoiler:Ghidorah]] in Chapter 14 that following her Metamorphosis, she'll outlive all her human friends.
* MeaningfulName: Her name is noted in Chapter 1 to mean "alive", quite fitting in the context of what happens to her in this story.
* MessianicArchetype: {{Lampshaded}} a couple times. Vivienne coming BackFromTheDead is compared to Jesus, and it fits because she died in a HeroicSacrifice and upon her death she descended into the Devil's (Ghidorah's) jaws.
---> '''Mark Russell:''' Jesus.\\
'''Vivienne: ''' ''[[DeadpanSnarker yeah?]]''
* MoralityPet: She's this to San, having a positive influence on his character growth since he fused with her, and it's because of her that San becomes determined to be better than Ghidorah. [[spoiler:She's even able to get San-2/Youngest Brother to pull a RedemptionEqualsDeath after TalkingTheMonsterToDeath]].
* MoreTeethThanTheOsmondFamily: She now has two sets of teeth: a universally sharp front set, and a more human-like rear set with canines and molars.
* MyInstinctsAreShowing: {{Inverted}}, as she adapts to having an inhuman body, but does still retain some human-like body language and also a couple individual physical cues from when she was human.
* NiceGirl: She's widely regarded as a kind person by her peers, who all benefitted in some way from her company. She's still a compassionate person after her resurrection as part of Monster X, but she's lost the "psychologically well-balanced" part entirely due to her TraumaCongaLine.
* NotAfraidToDie: PlayedWith. San notes in Chapter 5 that she's not afraid of dying anymore after her first experience.
* NotSoAboveItAll: Despite her ability to be professional, she isn't above friendly mischief.
* NotSoSimilar: She thinks this about herself and Ghidorah (specifically Ichi/Eldest Brother) during an exchange with an enemy in [[https://www.fanfiction.net/s/13357907/14/Abraxas Chapter 14]]:
--->[[spoiler:'''Ichi''']]: [[spoiler:'''OUR PAST IS YOUR FUTURE.''' [...] '''AND IN A THOUSAND YEARS, WHO WILL KNOW YOU AS YOU WERE? BUT WE, YOU AND I. WE ARE REFLECTIONS OF EACH OTHER. WE ARE ETERNAL.''']]\\
'''Vivienne''': ''No, no, no, no, no... I am like [Ichi], but I am not like [Ichi], in all the ways that matter. [Ichi/Ghidorah] will NEVER have me. I will NOT become like [ICHI/GHIDORAH]!''
* OhCrap: Besides the example she shares with San (see above); she has one in Chapter 6 when she realizes the nature of Jonah's SanitySlippage, and in Chapter 16 when she realizes [[spoiler:what Ghidorah is going to do to her ''before'' it assimilates her as a fourth head]].
* OnlyMostlyDead: There's her being brought BackFromTheDead (see above) after a brief period of death while inside Ghidorah's body. She furthermore has to endure a series of heart attacks during the transformation inside San's Ghidorah head.
* OOCIsSeriousBusiness: When she was human, she was not easily driven to anger and it was frightening when someone succeeded. {{Downplayed}} after she becomes part of Monster X, as everything she's been through so far really has changed her without lessening her ferocity.
* PainfulTransformation: PlayedWith during her first metamorphosis, during which she's largely comatose. She's also agonized when San's head suddenly develops further in Chapter 4.
* ParentalSubstitute:
** She was this towards Madison, who admits a few times (including to Vivienne herself) that she wished Vivienne would've become her mother if things had happened differently. Mark and others at Monarch are aware of it as well.
** She can also be seen as a form of this towards San, in contrast to his brothers -- showing him affection unlike his brothers ever did, and forming a strong brother-sister bond with him.
** There's also her and San's relationship with Manda (see above folder).
* PitifulWorms: A heroic case. She isn't immune to mentally calling Jonah and/or his men (who caused her and San a lot pain) "insects" when she's sufficiently enraged and is acting.
* PlatonicLifePartners: Besides her relationship with San (see above folder), her relationship with Dr. Serizawa beforehand was also this intimate (see his folder for details).
* PoorlyLitPareidolia: In Chapter 16, she briefly hallucinates stalagmites and stalactites as ScaryTeeth and gore. {{Justified}} by [[spoiler:Ghidorah]] telepathically messing with her head.
* PowerUpgradingDeformation: Initially, in Monster X's first form which has granted her Ghidorah's [[ShockAndAwe bio-electricity]] and HealingFactor along with San’s mind while causing BodyHorror. [[InvertedTrope Inverted]] during Vivienne and San's second {{Metamorphosis}}.
* ProHumanTranshuman: She initially refuses to kill other humans (this fades after she [[TookALevelInBadass Takes A Level in Badass]]), she still actively wants to stay in touch with her humanity despite her transformation, and she seeks as much interaction with her human loved ones as a Kong-sized chimera Titan can have.
* {{Protectorate}}: PlayedWith initially. San initially considers it his responsibility to protect and care for Vivienne. After she [[TookALevelInBadass Takes A Level in Badass]], she and San become mutually skilled at defending themselves together.
* PuppyDogEyes: PlayedWith. Ren Serizawa thinks in [[https://www.fanfiction.net/s/13357907/14 Chapter 14]] that when she was human, her gaze tended to have a "kicked puppy" look when she was emotionally hurt.
* RageBreakingPoint: She hits hers when Jonah's MookLieutenant finally pushes her too far in Chapter 4, at which point she explodes whilst San takes over their body and paints the walls with blood.
* RapeIsASpecialKindOfEvil: In [[https://www.fanfiction.net/s/13357907/16/Abraxas Chapter 16]], she finds herself sicker than ever before (and that is ''saying something'' considering all that she and San have been through), when she realizes [[spoiler:Ghidorah and Ni/Elder Brother's Many-avatar wholly intend to inflict the R-word on her to break her down further]].
* TheReliableOne: She was apparently this to Monarch when human, being MarriedToTheJob on top of her NiceGirl relations with her colleagues.
* ReplacementGoldfish: [[spoiler:San's EvilDoppelganger]] tries getting to Vivienne in [[https://www.fanfiction.net/s/13357907/11 Chapter 11]] by claiming the San who's attached to her is just a Replacement Goldfish for Serizawa.
* ReportsOfMyDeathWereGreatlyExaggerated: It isn't until several chapters in that Monarch discover Ghidorah eating her was not the end, and the world at large remains unaware of her true fate for longer.
* RoarBeforeBeating: Besides her and San's shared examples above; she unleashes her own one when she starts retaliating against [[spoiler:[=MaNi=]/Elder Brother for ripping San's head from her and moves to rescue San]], in Chapter 16.
* RoaringRampageOfRevenge: Her UnstoppableRage in Chapter 6 could count as a brief one for her and San.
* SanitySlippage: She's teetered on this a few times due to her PTSD (see ShellShockedVeteran).
* ShellShockedVeteran: Her experience of being EatenAlive has turned her into this, exhibiting definitive signs of PTSD. Her TraumaCongaLine hasn't done much to help either.
* SlasherSmile: She was known to produce this expression when she was human as a warning sign when someone had ''seriously'' pissed her off. In Chapter 16, she gives [=MaNi=]/Elder Brother a dangerous smile during her HeroicResolve. See the General folder for another example.
--->''[...] the smile Vivienne would make on those rare occurrences she'd been goaded to genuine cold fury, a smile that shows a little too many teeth and belongs on someone who could scare a serial killer into rethinking their life choices.''
* SpeaksFluentAnimal: She possesses a hereditary ability which would’ve enabled her to mutually communicate with Titans when she was human if the practices for learning to harness it were still around. After being transformed into part of Monster X, [[https://hrodvitnon.tumblr.com/post/631249528601935872/ with the aid of her neural link to San coupled with her hereditary potential]], she can fluidly understand what other Titans are saying and vice versa.
* StagesOfMonsterGrief: PlayedWith. She's at first dismayed that her transformation into Monster X doesn't turn out to be a nightmare. She eventually forgives and grows close to San, but she hates Ghidorah for psychically haunting her before her transformation, among its other evil acts. By [[https://www.fanfiction.net/s/13357907/11 Chapter 11]], she's accepted that she physically isn't human anymore and is now officially one of the Titans, but she still fears becoming too detached from her former humanity.
* StressVomit: She has one in Chapter 2 in response to her whole situation, shortly after becoming aware of San attached to her.
* StrongFamilyResemblance: Her mother facially resembles her when she was human, but with softer features. Susan Graham in turn insisted that Vivienne took more after her father in appearance.
* SurvivorGuilt: Her nightmare in Chapter 3 reveals she has a level of this, concerning numerous Monarch personnel and civilians who were killed by the [=MUTOs=], Jonah’s mercenaries and Ghidorah.
* ThatLiarLies: When Mariko first informs her of Serizawa's death in Chapter 4, she at first responds: "You're lying."
* ThousandYardStare: She briefly does this in Chapter 9, and she probably did it several other times in the story when it was her or San's P.O.V. instead of an onlooker's being described to the reader.
* TokenNonHuman: Amongst Monarch somewhat, due to her Metamorphosis.
* {{Tomboy}}: She isn't known to have any particularly feminine interests, nor is her demeanor all that feminine.
* TookALevelInBadass: She at first rebukes San's suggestions of deliberately killing other people, namely Jonah's personnel (even when said people are [[BullyingADragon really asking]] [[AssholeVictim for it]]). Several chapters later, she flies into an UnstoppableRage in which she shows Jonah's people who are stupid enough to stand in her and San's way no mercy; to say nothing how she verbally tore Jonah apart minutes earlier.
* TraumaCongaLine: My, oh, my. She gets EatenAlive and rendered OnlyMostlyDead (and is left with PTSD from this); she spends several months locked up underground in a space too small for her, with no track of time, transformed into a horrific part-Ghidorah monstrosity that's in a state of chronic agony, and is inhumanely experimented on with various ammunitions to test her new HealingFactor; she finds out her surrogate father is dead (she takes this particularly hard)... [[spoiler:and when she finally escapes and gets somewhat better, she finds out Ghidorah is both BackFromTheDead and can use MindRape tactics on her via PsychicLink, attempting to stress her and drive her down a StartOfDarkness. And then there's how her attempt at a reunion with her living mother goes. And right after that, she suffers serious ColdBloodedTorture at Ghidorah's hands]].
* TroubledFetalPosition: Besides the examples she and San have under the General folder, when she was human and Ghidorah was frozen, she was at one point reduced to curling into this position in the snow by exposure to Ghidorah's PsychicPowers.
* UnstoppableRage: Fully flies into one during her escape in Chapter 6 [[spoiler:when she learns what Jonah has been doing with the missing {{Disposable Vagrant}}s]]. And again even more impressively in [[https://www.fanfiction.net/s/13357907/13/ Chapter 13]], [[spoiler:when her loved ones are threatened]].
* VengeanceFeelsEmpty: Implied in Chapter 13 [[spoiler:when she kills what's left of Jonah]].
* VitriolicBestBuds: Maybe not "best buds" and it's a minor example, but in Chapter 14, Vivienne finds she's missed Lauren Griffin despite them considering each-other a nerd and a jarhead respectively.
* WithGreatPowerComesGreatResponsibility: She's aware of the damage she can unintentionally cause to humans when fighting near a human population center.
* TheXenophile: She's always been particularly awestruck and enticed by the Titans, especially Godzilla, and a passionate and driven Monarch operative in that respect.
* YouAreBetterThanYouThinkYouAre: She's told as much twice, first by Godzilla and then by Rodan.
* YouExclamation: She has one when she recognizes Jonah at the end of Chapter 2.
* YouShouldHaveDiedInstead: She receives a variation. Ren briefly admits among other things in Chapter 14 that he wishes it was Serizawa instead of her who came BackFromTheDead.
[[/folder]]

[[folder: San]]
Formerly Ghidorah's left head, notable for possessing a curiosity which his two brothers lacked and being the least malicious of the three. His mind survives inside the head that's ripped off by Godzilla. He's responsible for storing, reviving and transforming Vivienne's body inside his decapitated head before transferring his consciousness to the resulting hybrid’s second brain, becoming Vivienne's brother as part of Monster X. He functions as the secondary head.

----

* AffectionateNickname: After they become [[FireForgedFriends Fire-Forged Siblings]], Vivienne sometimes calls him "brother" instead of the name she gave him.
* AlternateSelf: Having come from the severed Ghidorah-head, he only has memories of Ghidorah's actions up to the head's decapitation, and doesn't remember what his regrown doppelgänger did before Ghidorah's death -- kind of like an outdated backup file copy. (See Ghidorah’s folder for more info.)
* AppropriatedAppellation: As of Chapter 8, he’s rejecting Ghidorah’s name entirely, and has taken the nickname Vivienne knows him by as his new name.
* AscendedExtra: He's one of the two main protagonists alongside Vivienne, who gets a delightful deal of expansion and CharacterDevelopment, whereas in ''King of the Monsters'' he was 1/3 of the BigBad[='s=] MultipleHeadCase.
* TheAtoner: He's become this after his and Vivienne's second {{Metamorphosis}}.
* BecauseYouWereNiceToMe: The fact Vivienne never abuses San the way his brothers did even before they become Fire-Forged further influences San's already-present loyalty and sense of kinship towards her.
* BeingEvilSucks: For him, the only satisfying part of burning entire worlds to the ground with his brothers for billions of years was the small-scale fighting, eating and killing he got to do -- he was never quite as invested as his brothers were in being an OmnicidalManiac, and he was abused by his brothers and starved of affection for ''eons''.
* BerserkButton: Physical or psychological harm being inflicted by others on his sister is something that only humans Vivienne cares about can get away with on San's watch (and even then, San doesn't appreciate it in the slightest).
* BewareTheNiceOnes: He's a real sweetheart towards Vivienne, and he's at least tolerant and curious towards humans if they haven't pissed him off, but God help you if you seriously hurt his sister.
* BloodKnight: Though he isn't an OmnicidalManiac like his brothers, San does genuinely enjoy a real fight.
* BrainUploading: He transfers his consciousness from the decapitated Ghidorah head into the secondary brain he grew on Monster X, becoming the hybrid's second head.
* BroughtDownToBadass: {{Downplayed}}. After merging with Vivienne, he's no longer able to fly and the two are still learning to control their new "storm" powers, but they're still as powerful and capable as any other Titan.
* ByronicHero: He can actually be seen as this. He's sensitive to the point of being endearing, but he's the more HeroicNeutral of the duo, and he largely reserves humane caring and consideration for Vivienne (and perhaps also Mothra), while towards most others he's more tolerant and benign than anything else. There's also his Freudian ItsAllMyFault tendency, and he's strategically-competent at looking out for details during combat.
* CainAndAbel: The Abel to Ichi and Ni's Cain following his HeelFaceTurn.
* CannotTellALie: It turns out that he literally lacks a concept of lying. [[https://hrodvitnon.tumblr.com/post/637226140951625728/ According to the author]], San regards the act of withholding information as a waste of thought.
* CatlikeDragons: {{Downplayed}}. San at times produces vocalizations comparable to purring, particularly as a reassuring or affectionate gesture towards Vivienne.
* ComicBookFantasyCasting: [[https://hrodvitnon.tumblr.com/post/631248784044736512/ According to the author]], San's voice sounds like [[https://www.youtube.com/watch?v=A2p2XI5Mg50 this guy]] from ''VideoGame/DragonsDogma'', particularly as his voice develops an accent with his CharacterDevelopment.
* CoolUncle: PlayedWith. [[spoiler:He's seen as Manda's adoptive uncle just as Vivienne is his adoptive mother]].
* DarkAndTroubledPast: He used to be one of Ghidorah’s three minds, and was treated by the other two as the runt of the litter. Enough said.
* DoNotCallMePaul: In Chapter 8, he spurns Ghidorah's name being used to refer to him, having disowned the monster he was once part of during his CharacterDevelopment.
* EasilyForgiven: Mothra has no reservations towards him over his and his brothers' past atrocities when she first encounters Monster X; Godzilla, being TheStoic, doesn't hold onto old hard feelings. {{Deconstructed}} or outright {{averted}} by other humans and Titans who remember Ghidorah and interact with San, as it takes time before they lower their reservations and animosities, and even then they don't directly forgive him of his past atrocities before he was separated from Ghidorah.
* EyeAwaken:
** He has one which catches one of Jonah's mercs off-guard when he and Vivienne are first reborn from San's old head, in Chapter 2.
** He has an unambiguously-heroic one in Chapter 16 when [[spoiler:Vivienne's lightning surges into and seemingly awakens his freshly-severed head]].
** See the General folder for another example.
* GoodCounterpart: As of Chapter 16, he has a specific EvilCounterpart in Ni/Elder Brother. [[spoiler:Both are formerly Ghidorah's heads which have split off and become "shed skins", but whereas San has Vivienne as his sister, loves her and has made a HeelFaceTurn; Ni is alone, he viciously exhibits a perverse narcissistic lust towards Vivienne when tormenting Monster X, and he's still loyal to Ghidorah]].
* GotMeDoingIt: His mental voice gradually picks up a British-sounding accent from Vivienne over time.
* HeelFaceTurn: He effectively becomes HeroicNeutral after fusing to Vivienne. He later endures a HeelRealization, and additionally becomes TheAtoner as his CharacterDevelopment progresses.
* HeelRealization: He has a brutal one in [[https://www.fanfiction.net/s/13357907/5 Chapter 5]], when he’s viewing Vivienne's memories and realizes why she's so miserable and doesn't trust him.
* HeroicBSOD:
** When viewing Vivienne's memories, he has a pretty heart-wrenching kick-in-the-teeth HeelRealization about why Vivienne's been so wary of him and about how much Ghidorah's actions -- including San's specifically -- have tarnished her. It's short-lived as Vivienne brings him out of it.
** He has a more minor one after he resorts to deliberately reminding Vivienne of Ichi/Eldest Brother attacking her to snap her out of a PTSD-induced UnstoppableRage.
* HumanityIsInfectious: [[InvokedTrope Invoked]] almost word-for-word by Vivienne when addressing his HeelFaceTurn in Chapter 9. Indeed, Vivienne acts as San's MoralityPet and also sates his curious tendencies. San's voice is gradually picking up Vivienne's accent with his CharacterDevelopment.
* IAmNotAGun: Ghidorah's {{backstory}} essentially makes San this following his HeelFaceTurn.
* IJustWantToBeLoved: He never got approval and affection from his brothers, and so he seeks these things from his new sister who he recognizes is nothing like them.
* IllKillYou: He angrily declares this after he and Vivienne (mainly Vivienne) is horrifically injured by a chlorine gas experiment.
* ImmortalImmaturity: A heroic/positive example. For a former part of a supposedly-immortal, TimeAbyss-old alien monster, San can be quite childlike. Probably {{justified}} by a [[DarkAndTroubledPast stunted psychological development]].
* ImmortalsFearDeath: He used to never worry about dying due to Ghidorah's ability to always [[FromASingleCell regenerate]], but in Chapter 5, he's terrified by the prospect he might die permanently due to his transformation into Monster X.
* InformedFlaw: His tendency to be distracted and slow on the uptake (which is referenced in the fic) becomes this, as he's actually quite competent and quick-on-the-draw as part of Monster X. Possibly {{justified}} by his caring for Vivienne giving him extra motivation that he didn't have with his brothers.
* InSeriesNickname: He was given his name by Vivienne while she was monitoring Ghidorah in Antarctica -- he acknowledges it isn't his real name. He's also nicknamed Eddie the Head by Tejada. [[spoiler:Ghidorah and the Many refer to San as a "shed skin" after he’s merged with Vivienne]]. It's indicated that Ichi and Ni would have called him "Youngest Brother" when he was still attached to them, [[spoiler:as it's what they call San's regrown AlternateSelf]].
* ItIsDehumanizing: He's on the receiving end at times. Notably, Madison in Chapter 11 begins contemplating San as a he/him instead of an it when she observes San's protectiveness of Vivienne. [[spoiler:Ghidorah]] notably considers San an it and a thing due to Ghidorah's {{Dehumanization}} of its heads' "shed skins".
* ItsAllMyFault: He has a serious tendency to mentally kick himself senseless when something goes seriously wrong and he decides it's his fault. It's nigh on GuiltComplex levels, and it's rooted in [[DarkAndTroubledPast how his brothers treated him]].
* KilledMidSentence: ''Narrowly'' {{subverted}} [[spoiler:when his head is ripped off of Vivienne and almost devoured, in Chapter 16]].
* KnightTemplarBigBrother: He's willing to kill if someone's crossed his sister, and he takes his [[BigBrotherMentor Big]] [[BigBrotherInstinct Brother]] responsibility to Vivienne seriously. Vivienne at first abhors the former, but the duo become more cooperative with each-other over time.
* LockedOutOfTheLoop: He at first isn't aware of the main Ghidorah's death after his decapitation, until Vivienne passes the news on to him.
* LosingYourHead: His original head severed from Ghidorah retains his mind and some degree of consciousness. {{Downplayed}} in that while San's mind is aware inside the head, on the outside the head remains (''seemingly/mostly'') immobile. [[spoiler:Then in Chapter 16, this trope gets played straight when San's head is ripped off of Vivienne by [=MaNi=]/Elder Brother]].
* LoveRedeems: Vivienne, as his MoralityPet, influences his CharacterDevelopment into a more benign and non-malicious being, and San admits that he feels an emotional kinship with her that he didn't get from his [[BigBrotherBully brothers]].
* MagicalDefibrillator: It's {{implied}} he gets a ShockAndAwe variation, when [[spoiler:his head is ripped off of Monster X and exposure to Vivienne's lightning makes him spring back to life, in Chapter 16]].
* {{Manchild}}: ZigZagged. He takes his self-imposed duty of caring for his new sister seriously, but his personality can be quite childlike, particularly when he isn't angry, distressed or focused.
* MasterOfYourDomain: His original decapitated head is able to both keep Vivienne alive in a coma inside itself and metamorphose her into an ArtificialHybrid when San wills it, while also forming a second head on the transformed Vivienne which San's mind can transfer into via BrainUploading.
* MinionWithAnFInEvil / TokenGoodTeammate: His brothers certainly view him as the former trope. Even before his HeelRealization, he's less malicious than Ichi/Eldest Brother and Ni/Elder Brother, he's genuinely inquisitive, and he's not really invested in his brothers' [[OmnicidalManiac Omnicidal Mania]] after being separated from them. However, he remains brutal when fighting or when provoked too far, and he's a competent sentry head.
* MyGodWhatHaveIDone: Upon his HeelRealization, he comes to deeply regret what he and his brothers have done to Vivienne. He apparently still carries remorse after Vivienne has forgiven him.
* MyGreatestFailure: He at times shoots glares or gets angry when someone brings up his past as part of Ghidorah against him, but he seems to regret the psychological harm he's caused Vivienne most of all.
* NearDeathExperience: {{Implied}}. Besides the one he shares with Vivienne, in Chapter 16, [[spoiler:it's suggested he has one after his head is ripped off and almost SwallowedWhole before his head gets an electrical jolt]].
* TheNothingAfterDeath: He apparently saw this between Vivienne's first death and her revival inside Ghidorah when viewing her memories (suggesting she had a CessationOfExistence), and he becomes terrified of entering the Nothing if he and Vivienne die permanently.
* NotQuiteDead: After his original head is ripped off of Ghidorah by Godzilla, it remains partially alive, retaining San's mind and pre-decapitation memories.
* OOCIsSeriousBusiness: When pleading for Vivienne to trust him in Chapter 5, YouCalledMeXItMustBeSerious does a lot to influence her decision.
* ParentalAbandonment: San has never had parents before, and though he's not at all bothered by his biological sire having no role in his and his brothers' maturation, as his CharacterDevelopment progresses he comes to crave the experience of having a mother figure like his sister had in her upbringing.
* ParentalSubstitute: The author has commented [[https://hrodvitnon.tumblr.com/post/645773162912546816/ here]] that [[spoiler:Susan Graham]] will likely become mutually acknowledged as an adoptive parent to San depending on how events progress.
* PowerEchoes: His voice is described as sounding echoic when he communicates with Vivienne telepathically, and his ComicBookFantasyCasting voice probably helps.
* PsychicBlockDefense: He attempts performing this multiple times to keep [[spoiler:Ghidorah's voices]] out of his and Vivienne's heads.
* PsychopathicManchild: {{Downplayed}} after he fuses with Vivienne and undergoes CharacterDevelopment, but besides his {{Manchild}} quirks, he's more nonchalant than her about attacking and killing when provoked. Before fusing with her, San seemed to regard Vivienne the way a child regards their favorite doll or teddy-bear.
* TheReasonYouSuckSpeech:
** He angrily chews out [[spoiler:Susan Graham]] for reacting as she did to Monster X and [[spoiler:unwittingly hurting Vivienne]].
--->"''YOU WERE THE REASON SHE [[spoiler:WANTED OUT OF THE CAGE. [...] ALWAYS THINKING OF YOU, IN WAKING AND DREAMING]]. SHE WAS AFRAID YOU [[spoiler:MIGHT BE DEAD, AFRAID YOU MIGHT LIVE]], AFRAID OF WHAT YOU MIGHT SAY. SHE DID NOTHING WRONG, BUT YOU THUNDER IN HER EARS! YOU SAY SHE IS DEAD! YOU DON'T LISTEN! YOU HURT AND FRIGHTEN HER!''"[[note]]Yes, San was [[BewareTheNiceOnes screaming in capitals]][[/note]]
** San himself gets one from [[spoiler:Ghidorah and Ni/Elder Brother's Many-construct]] in Chapter 16:
--->'''Ichi''': '''[[ItIsDehumanizing IT]] THINKS IT CAN PROTECT [Vivienne]? IT COULD NOT EVEN CHANGE HER INTO OUR SHAPE!'''\\
'''San-2''': even when you do something right you ruin it\\
'''Ichi''': '''IT CAUSED HER SUFFERING! IT TOOK THE QUEEN GNAT TO FIX THAT MISTAKE!'''\\
'''San-2:''' so much of her is broken because of your mistake\\
'''Ni''': IT CANNOT EVEN TEACH HER TO CONTROL HER POWER.\\
'''San-2''': we would have shown her the most wondrous things\\
'''Ichi''': '''IF IT CARED SO MUCH, IT WOULD HAVE TAUGHT HER BETTER, NO?'''
* RemovedAchillesHeel: Unlike with Ghidorah who was ill-built for moving in waters, Monster X fares somewhat better due to Vivienne being able to use their body structure to swim.
* RunningGag: He eventually mistakes FlippingTheBird for a human greeting display, and Vivienne doesn't seem to notice him pulling it with one of their arms when they encounter non-hostile humans.
* SayMyName: He does this a couple times, overlapping with YouCalledMeXItMustBeSerious, when he's distressed and calling out to his sister in fear and need of her.
* SeriesContinuityError: San thinks in the first couple chapters that he's never been a singular entity separated from his brothers before. Chapter 10 establishes [[spoiler:San, Ni and Ichi used to be three separate creatures who ''became'' Ghidorah]]. {{Justified}}, as these memories of San's are so distant that he barely recalls them and he seemingly isn't even sure that they’re real anymore.
* SnakesAreSinister: {{Averted}}. He's essentially an alien hydra-head by origin, and he retains his old head's serpentine qualities when Monster X metamorphoses into its second form after San's HeelFaceTurn.
* SpeaksFluentAnimal: Naturally, being a Titan himself. [[InvertedTrope Inverted]] by his and Vivienne's TwinTelepathy, which enables San to instantly pick up Vivienne's vocabulary for communicating, and by Monster X's ability to communicate in human vocalizations in its first form and via radio-waves in its second form.
* SuperEmpowering: He transforms Vivienne, a human, into part of a Ghidorah hybrid Titan; by regenerating her while deliberately feeding his own enzymes into her when she's inside his severed head. Granting their shared body Ghidorah's HealingFactor and bio-electricity, and {{Kaiju}} SuperToughness.
* SwallowedWhole: [[spoiler:''Narrowly'' {{subverted}} in Chapter 16 when Ni/Elder Brother rips his head off and attempts to devour it. Vivienne violently rescues her brother's head]].
* TearsOfJoy: {{Downplayed}}. His eyes turn watery a couple times when he's truly happy.
* TearsOfRemorse: Sheds these after his HeelRealization.
* TerseTalker: Downplayed, but his dialogue is sometimes written this way, particularly when he's angry or distressed.
* ThickerThanWater: ZigZagged and very much averted. He considers himself and Vivienne blood siblings as well as emotional/adoptive siblings following their merger, and San disowns Ichi and Ni as his brothers as his CharacterDevelopment progresses (not least because they are "Biggest Cunts" and all round evil). It's also telling that San and his brothers had [[spoiler:many biological sisters who died in infancy]], but San considers Vivienne the only true sister he's ever had.
* TwoFaced: He provides a non-villainous example in Chapter 3, when he manifests within the NightmareSequence as a duplicate of Vivienne's lost human form but with one side disfigured with Ghidorah-like HumanoidAbomination characteristics. See the General folder for another example.
* VillainRespect: PlayedWith. Though it's only after San's HeelFaceTurn that his thoughts on it are explored, he observes that [[spoiler:Thor's son]] died honorably when fighting Ghidorah.
* WhenHeSmiles: Several characters have observed that when San smiles in genuine happiness without any violent intent compared to his SlasherSmile, it's quite disarming.
* WhiteSheep: He becomes this to his brothers and AlternateSelf, being determined to be better than Ghidorah.
* WhyDidItHaveToBeSnakes: He hates being in deep waters, since it was his WeaksauceWeakness when he was part of Ghidorah.
* TheWorldIsJustAwesome: Over the course of his CharacterDevelopment, he's developed an appreciation for the world's beauty and wonders.
* YouCalledMeXItMustBeSerious: It's usually a sign things are frighteningly serious when he calls Vivienne by her name instead of calling her "sister".
[[/folder]]

!Ghidorah and its Other Creations
[[folder: Ghidorah]]
!!!'''Scientific name:''' ''Titanus Ghidorah''
A malevolent extraterrestrial Titan which was responsible for instigating the Titan Mass Awakening before being defeated by Godzilla. It consists of three draconic brothers with a single body, who each have control of one of the three heads: San (later San's AlternateSelf, San-2) who is known to the other heads as "Youngest Brother" or "the Third"; and the "Eldest Brother" (the central head, Ichi, "the First") and "Eld'''er''' Brother/Young'''er''' Brother" (the right head, Ni, "the Second").

----

!! Tropes applying generally or to all three heads

* AdaptationalAbomination: Whereas Ghidorah was already portrayed in Franchise/MonsterVerse canon as a relatively mild EldritchAbomination; in ''Abraxas'', its PsychicPowers are even more Lovecraftian than anything it managed to display in canon.
* AdaptationalBadass: Besides [[Characters/MonsterVerseKingGhidorah the points racked up by]] ''[[Characters/MonsterVerseKingGhidorah King of the Monsters]]'', [[spoiler:there's also the fact this story's version of Ghidorah was able to break free of its alien former-masters' control without any assistance, if they even had any real control over it to begin with (but from [[https://hrodvitnon.tumblr.com/post/645147573238333440/ what the author has said]], it's possible that those aliens probably just didn't value their lives enough to try placing restraints on their own creation)]]. Also, Ghidorah's PsychicPowers can affect humans much more strongly in Abraxas-verse than in [=MonsterVerse=] canon.
* TheAgeless: Its {{Backstory}} indicates as much, confirming that it's been around for ''eons''.
* AndYourLittleDogToo: [[spoiler:In Chapter 17, it decides on a whim to try assimilating Thor into the Many and then ripping Mothra limb from limb, solely so that it can see Godzilla and Monster X's reactions]].
* ArtifactOfDoom: The severed Ghidorah head inside the abandoned Monarch outpost, which is implied to still have some of Ghidorah in it after San's consciousness has left.
* TheAssimilator: [[spoiler:Its ultimate plan for Vivienne -- it intends to turn her into its fourth head (Shi). In Chapter 17, Ghidorah manages to partly assimilate Thor into its partly Many-composed body]].
* AxCrazy: This aspect of Ghidorah gets some expansion via its {{Backstory}}, explaining how this trope contributed to it being the gleefully {{sadist}}ic OmnicidalManiac it is now.
* BackFromTheDead: San states that Ghidorah can regenerate and return from death via its HealingFactor so long as any trace of its DNA remains -- apparently, San and his brothers have died and resurrected this way before -- and thus Ghidorah will one day return via the decapitated head or its DNA. [[spoiler:It eventually comes true.]]
* BadassBoast: Has this for a Bone Singer who communicated with it, in the past in Chapter 5:[[note]]The below capitalization, font and lack of grammar is how each of the trio's dialogue is respectively written in the fic[[/note]]
--->'''Ichi''': '''WE ARE DEATHLESS'''\\
'''Ni''': WE ARE ETERNAL\\
'''Ichi''': '''WE ARE THE DESTROYER OF WORLDS'''\\
'''Ni''': CONSUMED EMPIRES OF FLESH AND BONE AND METAL\\
'''San''': we live forever cut off our heads and they will grow back\\
'''Ichi''': '''THE HEAD IS THE SEAT OF THE SOUL'''\\
'''Ni''': THE HEAD IS THE SEAT OF THE SOUL\\
'''San''': the head is the seat of the soul
* BadBoss: Ghidorah actually regards the Titans it once commanded as "lowly beasts" who have no higher purposes than being lapdogs to Ghidorah's whims.
* BeautyIsBad: It's acknowledged in Chapter 16 as having been beautiful if wholly evil and destructive. [[spoiler:In its incomplete, BodyHorror form, the heads are about the only part of it that retain this]].
* BeingTorturedMakesYouEvil: [[spoiler:Mainly a psychological variant -- after Ghidorah's creation, the new destructive programming in its three brains drove them down SlowlySlippingIntoEvil which made it become an OmnicidalManiac -- but it's also implied in [[https://www.fanfiction.net/s/13357907/10 Chapter 10]] that Ghidorah was also physically tormented before it TurnedAgainstTheirMasters]].
* BellyMouth: [[spoiler:Keizer Ghidorah has a giant, vertical mouth with teeth in its Many-made chest]].
* BigBad: It casts a lingering influence on San and Vivienne. [[spoiler:Once it starts coming BackFromTheDead, it serves as the main Kaiju antagonist]].
* BigScrewedUpFamily: Its EvilPlan [[spoiler:after regenerating]] involved forming an UpToEleven case of this – [[spoiler:inflicting BeingTorturedMakesYouEvil on their "[[AntiAntichrist sister-daughter]]" Vivienne to make her like them, with the Many as Ghidorah's thralls]], and both San-2/Youngest Brother and the Many outright call it a family.
* BioweaponBeast: Once, long ago. [[spoiler:It's implied the alien civilization who turned Ichi, Ni and San into Ghidorah intended them to be this]].
* BodyHorror: Once the MonsterDelay ends in Chapter 17, it's revealed that [[spoiler:Ghidorah's unwhole body, which it's incorporated the Many into]], is so horrible to behold that the entire G-Team go pale-faced despite themselves.
* BreakThemByTalking: [[spoiler:Is attempting to drive Monster X down a StartOfDarkness, using techniques varying from tempting to belittling, to striking when Vivienne is mentally vulnerable.]]
* BrownNote: The decapitated head's psychic influence seems to cause this, driving to suicide those who don't suffer TheCorruption type SanitySlippage.
* CannotTellALie: It's a case of VillainsNeverLie (see below), but according to [[https://hrodvitnon.tumblr.com/post/648508725162803200/ Word of God]], this trope was also a big influence on Ghidorah [[spoiler:forming a particular part of its EvilPlan for Monster X when it learned of human metaphors]].
* ClipItsWings: During the [[spoiler:Chapter 17]] battle, Godzilla burned a hole through one of Ghidorah's wings with his Atomic Breath to disable its flight advantage.
* ComicBookFantasyCasting: The author has described what Ni and Ichi's mental voices sound like [[https://hrodvitnon.tumblr.com/post/623720240777412608 here]] -- also see [[https://hrodvitnon.tumblr.com/post/621194625830600704/ here]] for an example of what Ichi would sound like when he raises his voice based on his casting. She's also described what San's voice sounds like, giving one an idea of what his AlternateSelf sounds like (see San's folder).
* TheCorrupter: [[spoiler:This seems to be its plan for Vivienne, utilizing BreakThemByTalking and attempting to drive her into a full SanitySlippage so it can turn her into another AxCrazy extension of Ghidorah]].
* TheCorruption: Members of Jonah's organization who are touched by the Ghidorah-head's influence either kill themselves or display signs of this, with Jonah believing himself enlightened during his SanitySlippage.
* CreateYourOwnHero: It's done this by planning before San's decapitation to bring Vivienne BackFromTheDead as a part-Ghidorah hybrid. If Ichi/Eldest Brother had just been able to settle for killing her and letting her stay dead, the course of events from when [[spoiler:Ghidorah starts regenerating]] would probably go differently.
--->'''Vivienne:''' ''[to the Many]'' "''Your 'great one' should have let me stay dead!''"
* DarkLordOnLifeSupport: PlayedWith. [[spoiler:It's reliant on its own surviving DNA traces to regenerate [[FromASingleCell From a Single Head]] after it was previously obliterated, and until it can fully regenerate, it's reliant on the Many to act physically]].
* DecompositeCharacter: In Chapter 17, [[spoiler:Ghidorah becomes [[Characters/GodzillaTheGhidorahs Keizer Ghidorah]] in spirit when it assimilates a pair of giant forelegs via the Many, making this continuity's version of Keizer Ghidorah a separate character from Monster X]].
* {{Dehumanization}}: A variation. [[spoiler:It considers any of its heads that have detached from Ghidorah's main body and become autonomous creatures to be nothing more than "shed skins" or "shadows" which are inferior to Ghidorah, despite said shed skins retaining their personalities]].
* {{Determinator}}: {{Implied}}. Compared to the old Toho incarnations who would flee back into space when defeated, in this story, it seems Ghidorah truly will not stop until it's successfully destroyed the Earth before it can move on to doing the same to another world.
* TheDreaded: Vivienne completely feared Ghidorah when it was still frozen, humans who encountered Ghidorah during the Mass Awakening tend to be left with some psychological trauma to varying degrees, and both humans and Titans alike take the idea of Ghidorah one day returning [[FromASingleCell From a Single Head]] very gravely.
* EnemyToAllLivingThings: It's confirmed as being a PlanetDestroyer, and is despised by Earth's native Titans as "the Enemy".
* EvilCounterpart: It has a GoodCounterpart in Monster X, and Ichi/Eldest Brother specifically is an Evil Counterpart to Vivienne (see her folder).
* EvilerThanThou: [[spoiler:It's far too much for Jonah to control even when it's mostly dead]].
* EvilIsHammy: Sometimes, especially with Ichi/Eldest Brother, as the BadassBoast and the NoIndoorVoice demonstrate, although it's relatively subdued.
* EvilLaugh: It's hinted in this story that some of the times when Ghidorah's heads produce their high-pitched roars (which ''Franchise/{{Godzilla}}'' viewers have historically compared to deranged cackling), they really ''are'' cackling in their [[AnimalTalk Kaiju Talk]].
* FreudianExcuse: It's lived for billions of years after the incident in its {{Backstory}} which made it a WoobieDestroyerOfWorlds and led to it becoming so evil.
* FromASingleCell: Ghidorah can regenerate its entire body and all three heads' minds from just a single decapitated head, although it implicitly takes years for it to fully regrow without outside assistance.
* FromNobodyToNightmare: [[spoiler:In infancy, they were small, weak and not at the top of the food chain. Then came their transformation into Ghidorah]].
* GeneticMemory: With time, it can regenerate all three heads' individual personalities and memories from just a single decapitated head.
* GeniusBruiser: It's vicious but not dumb at all, and it's highly tactical.
* GenocideBackfire: It's responsible for exterminating the rest of Thor's people long ago, and Thor [[spoiler:in the FinalBattle plays a significant part in killing Ghidorah]].
* AGodAmI: It's implied Ghidorah's heads view their single-bodied self this way, and at best consider the terrestrial Titans that oppose them to be second-rate.
* GoodColorsEvilColors: Ghidorah's gold color scheme becomes the Evil Color compared to Monster X's bone armor being infused with visible silver traces, in addition to a BrightIsNotGood / DarkIsNotEvil contrast after Monster X's second {{Metamorphosis}}.
* GreaterScopeVillain: Besides its points listed under PosthumousCharacter, its PsychicPowers also caused Jonah's SanitySlippage and the creation of the Many. [[spoiler:{{Subverted}} when Ghidorah's three minds regenerate, and it takes over from [[DiscOneFinalBoss Jonah]] as the true BigBad of the story]].
* HatedByAll: Everyone InUniverse, from Viv and San to the Titans Ghidorah fought or controlled to the humans who were in any way involved in fighting it during ''King of the Monsters'', hate Ghidorah's guts, [[spoiler:and the feeling renews when Ghidorah comes BackFromTheDead]]. [[spoiler:San-2/Youngest Brother is somewhat exempt from this trope during and after his RedemptionEqualsDeath, but the other two heads not so much]].
* HateSink: It's responsible for [[spoiler:relentlessly and viciously trying to get under Viv and San's skin via the PsychicLink, and the heads all to varying degrees take glee in physically or psychologically hurting something. Ghidorah's EvilPlan to undo all of Vivienne's work towards mental recovery and reduce her to an irrevocably AxCrazy monster, its willingness to forcibly use her as a monster BabyFactory if it'll make her scream to that end, and its wish to physically separate her from San (with no small amount of needless cruelty) and turn her into Ichi, Ni and San-2's fourth head]]; all of these go quite a way to purge any Rooting for the Empire tendencies that even a sadistic reader might otherwise have, and they make the reader very much root against Ghidorah and want it to ''fail'' in its Evil Plan as well as making Ghidorah quite loathsome.
* HavingABlast: In Chapter 17, it's revealed that [[spoiler:Keizer Ghidorah has gained Godzilla's ability to pull this off, due to the Many assimilating Godzilla's dorsal plate fragments leftover from the events of ''Godzilla: Aftershock'']].
* HealingFactor: It turns out that it ''can'' regrow FromASingleCell with enough time.
* HisNameReallyIsBarkeep: In the film, Ghidorah's name was merely what ancient humans called it, whereas it's explicitly shown in the fic that it's also the name by which Ghidorah's heads identify themselves. Special ancient humans who were capable of [[AnimalTalk Kaiju Talk]] probably picked up and recorded the name.
* HiveQueen: [[spoiler:Ghidorah's three minds control the Many, which are originally created from Ghidorah's DNA, this way]].
* HoistByHisOwnPetard: Of the CreateYourOwnHero kind. Things would've probably gone very differently if Ghidorah hadn't resurrected Vivienne to turn her into an ArtificialHybrid. What's more, Ghidorah is directly responsible for [[spoiler:instigating Monster X's metamorphosis into its final form, enabling them to contribute heavily to the final fight against Ghidorah]].
* {{Hypocrite}}: Ichi/Eldest Brother is enraged when [[spoiler:San]] points out [[spoiler:in Chapter 14]] that Ghidorah's [[spoiler:creation and utilization of the Many]] is a lot like what [[spoiler:the aliens who turned them into Ghidorah]] did to them.
* ImMelting: [[spoiler:Keizer Ghidorah's body minus its severed head is melted down and vaporized, and then the severed head is cooked and melted by Monster X]].
* InstantExpert: [[spoiler:The Many's HiveMind enables Ghidorah to read the socio-cultural knowledge of all the Many's human victims at its leisure]].
* KarmicDeath: [[spoiler:The partly-regenerated Ghidorah is eventually beaten in battle by an alliance of the TwoBeingsOneBody Titan it caused so much pain to, the Queen of the Monsters it previously killed, said Queen's symbiotic partner, the Thunderer whose son it brutally slaughtered and whose kind it exterminated, and several of the Titans whom it enslaved and tried to manipulate into destroying their own planet. Monster X, who has arguably suffered the most pain by Ghidorah's actions, is the one who finishes Ichi/Eldest Brother off once the latter's head is all that's left]].
* KickTheSonOfABitch: [[spoiler:All three of its minds deride Jonah as nothing more than a tool who served his purpose]]. {{Downplayed}} by Ichi/Eldest Brother when [[spoiler:in Chapter 16, he lets San-2/Youngest Brother pick a fight with [=MaNi=]/Elder Brother for Ichi's own amusement]].
* LargeAndInCharge: [[spoiler:It's regenerated enough to tower above [=MaNi=]/Elder Brother and logically the Many's other Skullcrawler {{Mind Hive}}s]], in Chapter 17.
* LeakingCanOfEvil: While it was frozen, its heads were still partly conscious and still able to exert a limited psychic and electromagnetic interference.
* LogicalWeakness: Apparently, Ghidorah's electrical powers can be crippled by a [=MUTO's=] {{EMP}}.
* MassHypnosis: The severed head's psychic influence affects a number of Jonah's paramilitary, inducing {{Sanity Slippage}}s and causing those who aren't DrivenToSuicide to [[spoiler:aid Ghidorah's resurrection]].
* MasterOfYourDomain: After the middle head ate Vivienne alive, her body was willfully regurgitated into the left head's (San's) neck to keep her intact so she could be revived and biologically reshaped to Ghidorah's desires, though not before she'd been partly digested by Ghidorah's stomach acids. [[spoiler:Whatever state the partly-regenerated Ghidorah is in, it's able to wilfully open its chest ''Film/TheThing''-style to alter Monster X again]].
* MindHive: [[spoiler:Ghidorah has assimilated the Many into itself to make itself mobile whilst its regeneration is incomplete. And well, most of the resulting body looks like a medieval artwork of eternal damnation at first]].
* MindRape: Its intrusiveness and BreakThemByTalking via the PsychicLink crosses into this territory. Then there's also the decapitated Ghidorah-head's effects on Jonah's paramilitary.
* MonsterDelay: [[spoiler:It isn't until one chapter after Ghidorah's first appearance in the flesh following its partial regeneration and use of the Many that we see what its body below the necks looks like]].
* MultipleHeadCase: It consists of three brothers, each acting as an individual mind for one of its three heads, and it can regenerate back-up duplicates of them if Ghidorah or one of its heads is destroyed or is severed intact.
* NamesToRunAwayFromReallyFast: It's called the Destroyer of Worlds for a reason.
* TheNightThatNeverEnds: It inflicts a PerpetualStorm on most of the worlds that it conquers (see PlanetDestroyer).
* NoIndoorVoice: Its heads' voices are usually shouting or screaming according to the narration, except for after the OOCIsSeriousBusiness.
* NotSoInvincibleAfterAll: {{Discussed}}. Ghidorah considers itself to be "deathless", but in Chapter 17, Monster X points out to [[spoiler:Ichi/Eldest Brother]] that Ghidorah will die permanently if its enemies can find and destroy all its remains after killing it.
* TheOlderImmortal: Whereas the Titans native to Earth are believed to be thousands, millions or hundreds of millions of years old depending on the individual; [[https://hrodvitnon.tumblr.com/post/637986068089716737/ Word of God]] describes Ghidorah as being literally eons (billions of years) old.
* OmnicidalManiac: The story expands on this. As San and San-2 explain, Ghidorah is ceaselessly killing all life besides itself that it can find in every corner of the universe it conquers, and it views life as temporary and finite insects who exist solely for the purpose of dying.
* OOCIsSeriousBusiness: [[spoiler:In Chapter 13, Vivienne is unnerved by how calm Ichi, Ni and San-2's voices are after she rips apart one of the Many's {{Mind Hive}}s]].
* ParentalAbandonment: It originally came from a clutch of eggs with no parents. Vivienne believes this indicates the species Ghidorah originally hailed from would leave their eggs to fend for themselves, similar to sea turtles.
* PitifulWorms: It's called humans, including a brave Bone Singer who communicated with it long ago when it was frozen, "insects".
* PlanetaryCoreManipulation: It's hinted in Chapter 17 and further elaborated on by [[https://zerm1v0hg.tumblr.com/post/656894002539446272/ Word of God]], that Ghidorah's [[spoiler:partly resurrected form]] plans to feast on the HollowEarth[='s=] energy source to destroy the Earth from the inside-out.
* PlanetDestroyer: Slightly {{downplayed}} in that Ghidorah doesn't destroy the planets in an EarthShatteringKaboom, so much as blanket their skies in {{Perpetual Storm}}s.
* PosthumousCharacter: It's dead following the battle in Boston before the fic's main time frame [[spoiler:(at first)]], but its actions have caused San and Vivienne's transformation into Monster X, and it's hinted the severed head still has some of Ghidorah's minds in it. [[spoiler:Then Ichi, Ni and San-2 start regenerating [[FromASingleCell From a Single Head]]]].
* PostMortemComeback: It's responsible for Vivienne's death and her and San's rebirth as Monster X, and San's brothers feature through memories, flashbacks and dreams. [[spoiler:{{Subverted}} when Ghidorah has regenerated its minds, and their aforementioned dream appearance turns out to be RealAfterAll]].
* ThePowerOfHate: Ghidorah's "storm" powers are fuelled by hatred -- which Ichi, Ni and San are altogether wealthy in, unlike the two-headed Monster X who has more trouble drawing on such powerful negative feelings regularly.
* PragmaticVillainy: If you've read what it plans to do to Vivienne, then you'll know that it [[spoiler:saving Monster X and repairing them]] is ''not'' gonna be a good thing if Ghidorah gets its way with them immediately afterwards. There's also San-2/Youngest Brother [[spoiler:protesting to his brothers causing too much physical damage to Monster X more because he's concerned it'll irreparably break what San-2 sees as a beloved toy than out of humaneness]].
* [[PrecursorKillers Precursor Killer]]: [[spoiler:The alien AbusivePrecursors who turned Ichi, Ni and San into Ghidorah eons ago were among Ghidorah's first victims]].
* PsychicPowers: It exhibits a powerful psychic influence on humans around it which can have MindRape effects or worse, [[spoiler:in addition to its {{Psychic Link}}s with Monster X and the Many respectively]].
* PsychicLink: [[spoiler:Has one with Monster X, which it uses to try and BreakThemByTalking]]. It also has one with [[spoiler:the Many as their HiveQueen]].
* PsychoactivePowers: It's revealed Ghidorah's electrical powers work this way, relying mainly on [[ThePowerOfHate hatred]].
* RasputinianDeath: And boy, is it epic. [[spoiler:Ghidorah's the target of a long CombinationAttack by ''eight'' Titans working together -- major points include Ni/Elder Brother's head suffering severe PalatePropping {{Jawbreaker}}, the lots of bone-breaking and being sliced open, and Ichi/Eldest Brother's gullet getting exploded open from the inside; before Ghidorah's body is vaporized. Ichi/Eldest Brother's decapitated head gets finished off by Monster X performing their own [[https://i.imgur.com/lAslwxJ.gif Kiss of Death]] which cleaves the head in two]]. The trope gets {{lampshaded}} by Lieutenant Commander Pasternak:
--> "''Make that Rasputin worm hurt!''"
* RealAfterAll: [[spoiler:It's eventually revealed in Chapter 9 that Ni and Ichi's voices breaking San down when he was viewing Vivienne's memories really were them, and weren't just San's guilt]].
* RedBaron: It's also called the Devil, the Enemy, the Dragon, the Destroyer of Worlds, the One Who Is Many, That Which Came From The Stars, the Golden Demise, the Snake Father, the World Eater, the Song of Entropy, the Death Knell of Three Storms and the Great One.
* ReluctantPsycho: [[https://hrodvitnon.tumblr.com/post/645147573238333440/ According to the author]], Ghidorah was once this in the beginning. [[spoiler:Ghidorah's three brains had a single command forcibly hardwired into them through indicated alien brain surgery, which consciously and unconsciously tormented them ceaselessly and drove them to try again and again without success to make the TerribleTicking stop by sating it. The author suggests the command probably faded to something like tinnitus after eons]], but by then, Ghidorah's SlowlySlippingIntoEvil had come full circle. What was the phrase?
--->'''Kill Them All.'''
* ReportsOfMyDeathWereGreatlyExaggerated: [[spoiler:Monarch and the Russells are disturbed in Chapter 9 when informed by San and Vivienne that Ghidorah is coming BackFromTheDead.]]
* RuleOfThree: [[spoiler:Ghidorah itself]] lampshades this trope in Chapter 16, noting Ghidorah has three heads and the number three is considered sacred among humans.
* {{Sadist}}: The film already makes it clear that Ghidorah is an OmnicidalManiac with ForTheEvulz and ThereIsNoKillLikeOverkill tendencies, but this story goes more into showing how depraved Ghidorah (particularly Ichi/Eldest Brother) is capable of being when it wants to torment an individual without killing them, and also how [[spoiler:Ghidorah became that way]].
* SatanicArchetype: Like in the movie. Vivienne always called it the Devil or the Dragon in her notes, it's often compared by human characters' narration to a devil, and [[spoiler:it serves as the [[WesternAnimation/TeenTitans Trigon to Monster X's Raven]]. Ghidorah even hints in Chapter 13 that [[{{Satan}} the Devil]] might literally be humanity's mythical memory of it after all]].
* SerpentOfImmortality: Ghidorah is TimeAbyss old, and it can never permanently die so long as a viable piece of its DNA remains.
* SlowlySlippingIntoEvil: As described by the author [[https://hrodvitnon.tumblr.com/post/645147573238333440/ here]], Ghidorah gradually suffered this in its {{Backstory}} until it became the sadistic OmnicidalManiac we all know it as.
* SpaceNomads: Before arriving on Earth, it's been moving from world to world, conquering each one and then moving on.
* {{Sssssnaketalk}}: Only when the three heads all say this word in unison:
-->"'''''YESSSS'''[=SSSSssssss=]''"
* StalkerWithoutACrush: It psychically haunted Vivienne for years when she was monitoring Outpost 32. [[spoiler:Ichi/Eldest Brother, Ni/Elder Brother and San's EvilDoppelganger are stalking Vivienne and San even more viciously after Monster X's creation]]. This trope is nightmarishly ZigZagged [[spoiler:when Ghidorah, including a particularly InLoveWithYourCarnage Ni/Elder Brother, plans to forcibly use Monster X as a monster BabyFactory just to torture Vivienne into evil insanity]].
* StrawNihilist: It has shades of this, viewing all other life as temporary and worthless. According to [[https://hrodvitnon.tumblr.com/post/645147573238333440/ the author]], it's rooted in Ghidorah's own realization during its SlowlySlippingIntoEvil that asking why [[spoiler:it was the victim of such tragedy and what the point of its ReluctantPsycho programming was]] were pointless because there ''was'' no higher reason for it.
--->'''San-2:''' ''we tried at first tried to find meaning in their screams tried to find meaning in yours there was nothing to find [...] that is the meaning we found it is nothing there is no meaning we conquered we hunted we killed every world was mindless the [[spoiler:ones who made us]] screamed when we killed them nothing left all gone lives wasted honors meaningless''
* SuperEmpowering - There's what San did to Vivienne (see his folder), [[spoiler:plus the Many are a lot more durable and deadly than when they were autonomous living creatures]].
* TailSlap: Ghidorah's twin tails make for useful whipping and clubbing weapons against other Titans.
* TalkativeLoon: It's rather jarring reading Ghidorah's three minds talking over each-other at the same thing.
* TerribleTicking: As [[https://hrodvitnon.tumblr.com/post/645147573238333440/ described by the author]], a single command known to Ghidorah as "the Old Noise" [[spoiler:was deliberately programmed by Ghidorah's creators into it]] and exists in its three minds: '''Kill Them All'''. It's actually this that drove Ghidorah to repeatedly commit genocide at first. The author thinks it's faded to something like tinnitus after billions of years, but by the time this happened it had [[SlowlySlippingIntoEvil fully taken its toll on Ghidorah's minds]].
* TimeAbyss: The author [[https://hrodvitnon.tumblr.com/post/637986068089716737/ stated]] Ghidorah is eons old.
* TorturedMonster: [[https://hrodvitnon.tumblr.com/post/645147573238333440/ Word of God]] reveals that Ghidorah ''began'' as this billions of years ago with its TerribleTicking, but SlowlySlippingIntoEvil eventually turned it completely gleefully evil.
* TurnedAgainstTheirMasters: [[spoiler:It's heavily implied Ghidorah was created and made AxCrazy to be a BioweaponBeast. Unfortunately for Ghidorah's alien creators, Ghidorah turned on them and killed them all whilst doing exactly what they'd wanted it to]].
* [[TwoBeingsOneBody Three Beings, One Body]]: It's heavily implied in Chapter 10 that [[spoiler:Ichi, Ni and San were originally single-headed creatures born from the same clutch of eggs, and the brothers were turned into the three-headed destroyer by alien experiments]].
* VengeanceFeelsEmpty: PlayedWith. [[spoiler:It apparently reacted this way to killing the alien beings who'd created and tortured it, albeit mainly because their deaths didn't quell the noise they'd programmed into Ghidorah's heads]].
* VillainousIncest: It's revealed in Chapter 16 that [[spoiler:Ghidorah intends to make Monster X a BabyFactory, despite its heads admitting that they consider Vivienne their [[BrotherSisterIncest sister]] ''and'' their [[ParentalIncest daughter]]]].
* VillainsNeverLie: Ghidorah literally lacks a concept of lying or dishonesty, though that's not to say it's incapable of psychological manipulation.
* VillainTakesAnInterest: [[spoiler:It's pleased by Vivienne's capacity for UnstoppableRage as Monster X in Chapter 13. Ni/Elder Brother in particular becomes more interested in Ichi/Eldest Brother's plans for Vivienne after this]].
* VoicesAreMental: PlayedWith. Apart from their wailing roars, all three heads have an individual mental voice, heard by those who can communicate with Titans.
* WalkingSpoiler: Take a look at the rest of this folder.
* WoobieDestroyerOfWorlds: Its {{backstory}} before coming to Earth reveals Ghidorah is originally this. [[spoiler:As described in Chapter 10 and [[https://hrodvitnon.tumblr.com/post/645147573238333440/ further elaborated on by the author]]; Ichi, Ni and San were originally just three critters in an alien ecosystem fighting to survive, but after they were captured, forcibly transformed into Ghidorah and tortured, the AxCrazy command that their jailers forcibly hard-wired into Ghidorah's three brains made them exterminate their masters trying to satisfy the command and make it stop. When that didn't work, Ghidorah tried inflicting destruction again and again to make the torment stop, and by the time the command had faded after eons, Ghidorah had long since suffered SlowlySlippingIntoEvil]].
* WouldHitAGirl: It fulfils this trope when, [[spoiler:despite not considering Monster X a threat, Ghidorah taunts Vivienne in particular by breaking her and San's legs ForTheEvulz; in Chapter 16]].
* YankTheDogsChain: [[spoiler:In Chapter 12, its psychic attacks on Monster X seem to lull, then it takes advantage to attack Vivienne ferociously when she's most vulnerable during her reunion with her mother]].

!! Tropes applying to the heads individually

* AlternateSelf: San-2/Youngest Brother, who is the result of San's original head, following his BrainUploading to Vivienne, re-forming San's personality and memories whilst it regenerated the rest of Ghidorah. As a result, San-2 lacks San's CharacterDevelopment that led to his HeelFaceTurn. Vivienne is able to tell the two San's apart when the evil one speaks to her in [[https://www.fanfiction.net/s/13357907/11 Chapter 11]], as San-2's voice sounds the same as when San first fused to her. There's also [=MaNi=]/Elder Brother -- see his folder for details.
* AsYouKnow: San-2/Youngest Brother provides a little exposition while observing [[spoiler:the partly-regenerated Ghidorah]]'s situation aloud, which annoys [[spoiler:Ichi/Eldest Brother]], in Chapter 17.
* AttackTheMouth: [[spoiler:In Chapter 17, Monster X destroys Ichi/Eldest Brother's head by firing their [[EyeBeams Destroyed Thunder]] into his mouth]].
* BeingEvilSucks: San-2/Youngest Brother suffers this exactly like San did. See San's folder for details.
* BerserkButton: Ichi/Eldest Brother specifically was ticked off by humans (namely Vivienne) building a "cage" around Ghidorah while it was frozen. It's also revealed that Ghidorah has such an extreme reaction to hearing an ORCA signal because it [[spoiler:brings back bad memories from Ghidorah's {{Backstory}} as a TorturedMonster]]. It's heavily implied that Ichi just despises [[spoiler:any reminder of the alien civilization who created Ghidorah]], and that this might even be the root of Ghidorah's KillAllHumans attitude during its rampage.
* BigBrotherBully: Ichi and Ni towards San. They didn't show him a shred of affection nor allow him to indulge in anything that didn't involve eating and killing; roaring in his ears and biting at his horns when they disapproved of his curious tendencies.
* BigShutUp: Both Ichi/Eldest Brother and Ni/Elder Brother snapped at San[[spoiler:-2/Youngest Brother]] with this for doing little more than raising his voice.
* CainAndAbel: Ichi/Eldest Brother and Ni/Elder Brother are the Cain to San's Abel.
* CardCarryingVillain: Ichi/Eldest Brother and Ni/Elder Brother are proud of their omnicidal history, as the BadassBoast demonstrates.
* DeadpanSnarker: Ichi/Eldest Brother and Ni/Elder Brother have moments, particularly during [[spoiler:the VillainousBreakdown[='s=] early stages]]. [[https://hrodvitnon.tumblr.com/post/656909793179631616/ Word of God]] confirms these two inhuman minds picked it up by [[spoiler:gaining mental access to the Many's victims' socio-cultural knowledge]].
---> '''[[spoiler:San-2]]:''' [[spoiler:brothers]] there is a problem\\
'''Ichi: THERE IS ALWAYS A PROBLEM WHAT NOW'''\\
[…]\\
'''Ni:''' WHAT A NUISANCE I'VE ONLY JUST [[HydraProblem COME BACK]]
* DefiantToTheEnd: Ichi/Eldest Brother after his head was ripped off and he was forced to watch the rest of Ghidorah get destroyed, [[spoiler:in Chapter 17]]. However, he did [[spoiler:freak out at the very end, partly due to a little BreakThemByTalking from Monster X]].
* DisproportionateRetribution: Ichi/Eldest Brother wanted to grant Vivienne a FateWorseThanDeath purely because she unwittingly hit his BerserkButton by leading humans in building a "cage" around the glacier Ghidorah was frozen inside.
* TheDogBitesBack: {{Downplayed}}. [[spoiler:San-2/Youngest Brother doesn't hesitate to snap at, bite and threaten to kill [=MaNi=]/Elder Brother without consequences, since said version of Ni is no longer considered part of Ghidorah]].
* DoppelgangerGetsSameSentiment: {{Averted}} hard by Vivienne in regards to San-2/Youngest Brother, as she has no interest in fulfilling this trope nor the implications of doing so. [[spoiler:However, during the FinalBattle, Monster X recognizes San-2 as indeed being "San-Who-Could-Have-Been" and mourns his RedemptionEqualsDeath HeroicSacrifice]].
* EvilCannotComprehendGood: [[spoiler:{{Subverted}} with San-2/Youngest Brother in [[https://www.fanfiction.net/s/13357907/17/ Chapter 17]]. He at first can't understand why Vivienne won't respond to him or his brothers the way she responds to Mothra and San, but after he has a lengthy psychic talk with Viv and San coupled with seeing Thor's memories of his family, San-Who-Could-Have-Been ends up making a RedemptionEqualsDeath]].
* EvilDoppelganger: The version of San who replaces the San that fused with Vivienne. [[spoiler:San-2 has no apparent compunctions against using BreakThemByTalking and MindRape on San and Vivienne]].
* EvilFeelsGood: Ni/Elder Brother and especially Ichi/Eldest Brother appear to be of this opinion.
* EvilMakesYouUgly: Both San and Mothra consider Ghidorah's utilization of the Many to be a new debasement even by Ghidorah's standards, and... Well, if [[spoiler:Ghidorah's part-Many temporary body]] could make [[Film/GodzillaKingOfTheMonsters2019 the military team who fought at Washington DC and Boston]] want to throw up, that's gotta be saying something.
* EvilMentor: San-2/Youngest Brother in particular shows an interest in being this to Vivienne.
* EvilSoundsDeep: Ichi/Eldest Brother's mental voice in particular (see ComicBookFantasyCasting). This also applies to San's AlternateSelf due to San's Comic-Book Fantasy Casting (see his folder).
* EvilSoundsRaspy / GutturalGrowler: The voice of Ni/Elder Brother (see ComicBookFantasyCasting).
* EyeScream: In Chapter 17, [[spoiler:both Ni/Elder Brother and Ichi/Eldest Brother lose an eye to Monster X and Mothra respectively]].
* FauxAffablyEvil: [[spoiler:Ichi/Eldest Brother has started displaying this kind of attitude in Chapter 14. According to [[https://hrodvitnon.tumblr.com/post/639403196006203392/ the author]], he's mainly using it as a psychological warfare tactic against Vivienne]].
* FeedItABomb: [[spoiler:During the FinalBattle, Godzilla holds the middle head's jaws open whilst the military drops a GBU-57 which lands down the head's gullet and explodes there]]. For the record, the GBU-57 is called a "bunker buster" bomb in RealLife.
* GoOutWithASmile: [[spoiler:San-2/Youngest Brother reacts with a genuine smile to Vivienne referring to him as her brother, before he resumes his HeroicSacrifice]].
* HeelRealization: [[https://hrodvitnon.tumblr.com/post/656909793179631616/ Word of God]] confirms that [[spoiler:San-2/Youngest Brother experienced one parallel to the main San's earlier one, as a result of reading Thor's memories]].
* HeManWomanHater: Ni/Elder Brother picked up a nasty case, [[spoiler:due to a combination of learning humanity's socio-cultural knowledge and his "murder boner" towards Monster X]].
* HeroicSacrifice: [[spoiler:In Chapter 17, San-2/Youngest Brother has a RedemptionEqualsDeath; using his final minutes to attack his evil brother heads with his jaws and aid the other Titans, before Ghidorah is cooked to nothing once more]].
* HumanityIsInfectious: Very much {{downplayed}}. [[https://hrodvitnon.tumblr.com/post/656909793179631616/ Word of God]] confirms that [[spoiler:Ichi/Eldest Brother and Ni/Elder Brother]]'s DeadpanSnarker moments and [[spoiler:the latter's HeManWomanHater]] mouth are the result of exposure to the Many's human socio-cultural knowledge stores, but that's about where humanity's influence on them ends.
* IJustWantToBeLoved: San-2/Youngest Brother has the same unfulfilled craving for affection as San did, being a clone of the latter San as his personality was before his CharacterDevelopment.
* InLoveWithYourCarnage: [[spoiler:Both Ichi/Eldest Brother and Ni/Elder Brother react this way toward Vivienne after witnessing Monster X's capacity for savagery, and they want to mentally destroy Vivienne until this violent streak becomes the entire definition of her personality]].
* InSeriesNickname: In {{canon}}, Ghidorah's heads were only named Ichi, Ni and San as a ProductionNickname and were never called this InUniverse. In this fic, it's revealed in [[https://www.fanfiction.net/s/13357907/2 Chapter 2]] that Vivienne gave the heads their names while she was monitoring Outpost 32. Ichi and Ni seemingly don't answer to these names, and are referred to by San as Eldest Brother and Elder Brother respectively. San-2/Youngest Brother eventually earns the name San-Who-Could-Have-Been from Monster X.
* ItsPersonal: Ichi/Eldest Brother eating Vivienne alive and wanting San to grant her a FateWorseThanDeath was done because she hit his BerserkButton.
* {{Jawbreaker}}: In Chapter 17, [[spoiler:Ni/Elder Brother inflicts this on himself when his head is impaled on Methuselah's horn, pulling himself free but ripping half his jawbone away]].
* LaserGuidedKarma: [[spoiler:Ichi/Eldest Brother gets this in Chapter 17. After he spent so much time viciously getting into Viv and San's heads trying to inflict BreakThemByTalking, they get to turn the tables on him before delivering his KarmicDeath]].
* LosingYourHead: In Chapter 17, [[spoiler:Ichi/Eldest Brother's head gets ripped off, and remains conscious and animate until it's executed by Monster X]].
* MeaningfulLook: San-2/Youngest Brother during [[spoiler:his RedemptionEqualsDeath]] makes it clear just by giving Monster X a look that [[spoiler:Thor is almost done for]].
* NoRangeLikePointBlankRange: Ichi/Eldest Brother at one point is shown unsuccessfully attempting to fire a Gravity Beam into Godzilla's face at close range.
* NotSoDifferentRemark: [[spoiler:Ichi/Eldest Brother]] says as much about Vivienne when conversing with Monster X, twice. The first time leads to a NotSoSimilar speech from her.
* OhCrap: [[spoiler:Ichi/Eldest Brother has a small one in Chapter 17 when confronted with the idea that Ghidorah's enemies might actually be able to hunt down and destroy all the pieces of it after he dies, and thereby make his impending death become permanent]].
* PalatePropping: [[spoiler:Somewhat {{inverted}}. During the FinalBattle, Ni/Elder Brother's jaws get jammed shut by Methuselah's horn getting stabbed upward through his jaw and skull]].
* PetTheDog: San-2/Youngest Brother, like the real San before the latter's CharacterDevelopment, regards Vivienne the way a child would regard their favorite toy, and he [[spoiler:ferociously intervenes when [=MaNi=]/Elder Brother causes too much damage to Monster X. San-2 at one point fleetingly attempts to {{exploit}} this trope when telepathically contacting Vivienne]].
* PsychopathicManchild: San-2/Youngest Brother, just like San was before his CharacterDevelopment. He initially reacts like a petulant child when he and [[spoiler:his brothers]] aren't getting their own way with Vivienne in Chapter 17.
* TheReasonYouSuckSpeech: When Monster X is [[spoiler:experiencing face-to-face torment from Ghidorah]] and thus re-encountering the supposedly-dead hydra's middle head alongside San-2/Youngest Brother, San gives the two heads an epic one in retort to the one he's received; in [[https://www.fanfiction.net/s/13357907/16/ Chapter 16]]:
--->"''AND WHAT ABOUT YOU?! [[AlternateSelf YOU]] '''[[AlternateSelf ARE]]''' [[AlternateSelf ME]]! CHANGING [Vivienne] WAS MY TASK! BUT I CHOSE TO STAY WITH HER! WHERE WERE YOU WHEN THE TORMENT BEGAN?! WHERE WERE '''YOU''' TO TEACH HER CONTROL?! YOU WERE PLAYING AT [[spoiler:BEING [[AbusivePrecursors MAKERS]]]]!''"
* RedemptionEqualsDeath: [[spoiler:After some TalkingTheMonsterToDeath and [[https://hrodvitnon.tumblr.com/post/656909793179631616/ viewing Thor's memories]], San-2/Youngest Brother ultimately turns on his evil brothers, helping Monster X and the benevolent Titans to destroy Ghidorah including himself]].
* RestrainingBolt: [[https://hrodvitnon.tumblr.com/post/656909793179631616/ The author]] has described Ichi/Eldest Brother as being this to the other two heads, keeping the left head's TokenGoodTeammate curiosity and the right head's otherwise StupidEvil-inducing psychotic desires (which manifest unrestrained in [=MaNi=]) in check.
* SlasherSmile: Ichi/Eldest Brother just smiles confidently when [[spoiler:Vivienne declares they're NotSoSimilar in [[https://www.fanfiction.net/s/13357907/14/ Chapter 14]], and he also pulls a smirk in the style of the Antarctica scene in the face of the Titans' war cry in Chapter 17]]. It gets lampshaded that Ichi is the head who sports this expression the most prominently out of the three.
* TheSociopath: Ichi/Eldest Brother and Ni/Elder Brother. LackOfEmpathy and Devoid of Conscience? ''Oh, definitely yes''. They're not {{Consummate Liar}}s solely because they CannotTellALie (see VillainsNeverLie), but they're quite knowledgeable on exploiting what psychologically makes their victims tick when they need to. They have a Pathological Need for Stimulation specifically in the form of sadistically killing everything and anything they can. They have a Shallow Effect in how they have no emotional attachment towards each-other, their Youngest Brother nor anything else. And they definitely have a Grandiose Sense of Self-Importance as the BadassBoast, combined with the fact they consider themselves the only true god compared to Earth's Titans, demonstrate.
* TalkingTheMonsterToDeath: [[spoiler:San-2/Youngest Brother is on the receiving end from San and Vivienne when psychically conversing with them in Chapter 17. This is part of what leads to him pulling a RedemptionEqualsDeath]].
* TeethFlying: [[spoiler:In Chapter 17]], Godzilla forces Ichi/Eldest Brother's jaws shut so violently that this happens.
* TermsOfEndangerment: Ichi/Eldest Brother and Ni/Elder Brother calling Vivienne "Bone Singer" is somewhat this, [[https://archiveofourown.org/comments/246407908 according to the author]].
* ThereIsNoKillLikeOverkill: Naturally, the Titans have to employ this on Ghidorah whenever they kill it, trying to kill every last bit of it present in the hopes there'll be nothing for it to resurrect from and that there won't be another next time.
* ThisCannotBe: [[spoiler:Ichi/Eldest Brother ends up reacting with denial before Monster X cooks his head to nothing]] in Chapter 17.
* TokenGoodTeammate: San-2/Youngest Brother, the same as San before the latter fused with Vivienne; is the least vicious of the three heads (though still not devoid of sadism), and he hates it when his brothers [[spoiler:damage their "toy" too much]].
* TragicVillain: Besides Ghidorah's WoobieDestroyerOfWorlds backstory; both [[https://hrodvitnon.tumblr.com/post/640060179124305920/ the author]] and a reviewer have also noted that it's actually quite tragic that San-2/Youngest Brother has the same potential for a HeelFaceTurn as Vivienne's San does but him remaining attached to his brothers limits that from happening. Think Nebula in ''Film/AvengersEndgame''...
* TrashTalk: PlayedWith. Both Ichi/Eldest Brother and Ni/Elder Brother viciously taunted Thor ''before'' a fight, [[spoiler:leading Thor in turn to try provoking Ghidorah into accepting his challenge, in Chapter 17]].
* TwoFaced: [[spoiler:During the FinalBattle, half of Ni/Elder Brother's head gets reduced to a crater on one side]].
* VillainousBreakdown: [[spoiler:Ichi/Eldest Brother and Ni/Elder Brother have a gradual one over the course of Chapter 17. They get more and more frustrated with all the Titans' opposition and Ghidorah's increasing disadvantage, and they're caught off-guard when San-2/Youngest Brother [[RedemptionEqualsDeath turns on them]]. When Ichi's head is all that's left of Ghidorah, he's proverbially shitting his pants when Monster X is about to execute him]].
* VillainousBSOD: In Chapter 17, San-2/Youngest Brother seems to be in one whilst he's [[spoiler:viewing Thor's loving memories of the family he lost]].
* VillainRespect: Ichi/Eldest Brother has a moment of this [[spoiler:when his decapitated head (confident he and his brothers will still come back eventually) compliments Monster X after the destruction of Keizer Ghidorah's body]].
* WhenHeSmiles: San-2/Youngest Brother gives Monster X a sad smile just like San's after he [[spoiler:turns on his brother heads]] in Chapter 17.
[[/folder]]

[[folder: The Many -- In General ('''*Unmarked Spoilers*''')]]

Monstrous undead abominations, created by Alan Jonah's experiments on Ghidorah's DNA from the decapitated head while Ghidorah was regenerating.

----

* AndYourLittleDogToo: It threatens to go after Vivienne's human loved ones in Chapter 13, declaring it knows where they are.
* AnimateDead: It can reanimate dead hosts infected with its DNA as {{Artificial Zombie}}s, thanks to the PlayingWithSyringes.
* ApocalypseCult: They very much behave like an inhuman example.
* ArtificialZombie: The Many began due to Jonah and his Basement Club's experiments with Ghidorah's DNA, and they're able to revive and assimilate dead creatures.
* AssimilationPlot: This is the Many's general attitude towards anything that isn't them or their three-headed originator, if it's worthy of anything other than dying.
* TheAssimilator: They can infect new creatures living or dead, adding them to their biomass/es and their HiveMind.
* AsTheGoodBookSays: Slightly downplayed, but at times their psychic legion-voices make clear references to Literature/TheBible.
* AttackTheMouth / EatTheBomb: One of their Mind Hives tries defeating Rodan by shutting its jaws around his head in Chapter 13 -- the results are ''combustible''.
* AxCrazy: The overall gestalt and every mind that's been absorbed into it, is demented and fanatically insane, and won't hesitate to carry out its three-headed master's wishes.
* BewareMyStingerTail: The Skullcrawler amalgamation at one point uses the sharpened tip of its tail as an impaling weapon in Chapter 13.
* BigScrewedUpFamily: Taken UpToEleven. Like their master, they have a twisted idea of their HiveMind, the slowly-regenerating Ghidorah, and Ghidorah's "[[VillainousIncest sister-daughter]]" as a growing family.
* BodyHorror: The Many are particularly gruesome, the author having looked at bone cancer among her inspirations for their appearance. Taken UpToEleven when they perform FusionDance.
* BoomHeadshot: It doesn't work on their humanoid forms.
* BreakThemByTalking / TrashTalk: It attempts this on Vivienne. It succeeds in [[UnstoppableRage pissing Monster X off]].
* BrightIsNotGood: They partly have hard, bright golden-yellow color like Ghidorah.
* BurnTheUndead / KillItWithFire: Rodan and Godzilla actively and respectively use their fiery {{Breath Weapon}}s to kill as much of the Many's infected tissue as possible.
* CutPhoneLines: They pull a variation when they cut off Castle Bravo's communications with Yonaguni in Chapter 15, rendering Bravo unable to forewarn Monster X or anyone else at Yonaguni of the Many's true intentions.
* TheDarknessGazesBack: They pull this off with their GlowingEyesOfDoom in darkness.
* {{Dracolich}}: They infect the corpse of Manda's father and turn it into one of these.
* TheDreaded: Even Skullcrawlers flee in terror from it. Friggin' ''Skullcrawlers''!
* {{EMP}}: It's theorized by a Monarch operative in Chapter 15 that they used this to knock out Castle Bravo's power.
* EvilGloating: The MindHive of one of the Many's constructs has this for Monster X:
--->"''E͏ven͟ if̶ ̴y͡ǫu ̶kil̢l us̷ ͡yoų'̕v͜e ǫnly̵ slash͞e̶d o͘ff o̶ne̷ ten̸d͝r͝i̡l of a s͏in̡gle͘ g͏rea̢ter̢ or͜ga͝nism̵.͟ [[spoiler: ̷So m͢an̴y sam͠p̴l̨e̕s. ͟ ̧S͞o m̕a̶n̸y people͠ o͟uţ ͠t͏her͏e͝ h̛op҉i̵ng̢ ̵to͜ ͞start a famil̨y҉, b͞ut can'͝t̛ ̛co͘n͏ceive̶. S͞o ͏th̴e͟y ͞re͘s̷or͘t to... ͝o҉utsid͠e a̕s̴si͘s҉t̡an̡ce̷. ͞ H̴ow ̸m̨an҉y g͟enerątion͝s wįll i̸t͡ ̸t͠a͟ke, do y̨ou͡ ̷thi͞nk̸,̴ ͞be͟fơre̢ ҉t͟he c̨ḩi͘ldre̶n͠ o͡f ̛the dra͠gǫn̷ ̸w͘alk̸ t̕h̨e ͝ci̢ty ̢s̛tr҉e͢et̢s i͟n̵ ͝p̛l̸ai͘n si̢gh͟ţ, ͝n̕o͜ ̡one sųsp͢ec̡t̵ing̸ ̢a th̴ing?]] ̶ H͞o͝w many mo͟re ̧frien̴ds͠ of yo̢u̢r͡s͟ m̵ight sti҉l̷l͘ be ̶end͘an̢ger͟ed̶? ͞''"[[note]]This is how the author formats their dialogue[[/note]]
* EvilSmellsBad: They may be animate, but apparently they smell overwhelmingly like death.
* EvilTakesANap / SealedArmyInACan: According to [[https://zerm1v0hg.tumblr.com/post/656894002539446272/ Word of God]], Ghidorah's EvilPlan involves temporarily sending the Many into dormancy whilst it takes time inflicting BeingTorturedMakesYouEvil on Vivienne, then once it's finished with her it'll awaken the Many again to wipe out all other life.
* FacialHorror: Some of the human hosts infected by the Many have cancer-like growth in their skulls blinding their eyes.
* FateWorseThanDeath: A reviewer pointed out it seems fair to say every victim who becomes part of the Many suffers this trope.
* ForTheEvulz: Their message with the headcam footage in Chapter 7 seems like it was left purely to screw with the teams sent into their lair.
* FusionDance: They can perform a gruesome, ''[[Film/TheThing1982 The Thing]]'' variety.
* GlowingEyesOfDoom: Their initial humanoid forms have eyeshine in the dark.
* GoodColorsEvilColors: Their jaundiced gold colors (like Ghidorah's) are an Evil Color to Monster X who has silver highlights in its armor.
* GoodLipsEvilJaws: PlayedStraight by their Dracolich form, which has exposed teeth and gums and it combats Godzilla twice.
* HealingFactor: Their constructs have one like Ghidorah's which can rapidly regenerate bodily damage.
* HiveMind: The Many and their constructs are apparently linked to each other and to Ghidorah's minds in this way.
* HorrorHunger: They're driven eerily by TheAssimilator variety to ravenously seek out new biomass to assimilate and add into their HiveMind.
* IAmLegion / VoicesAreMental: The psychic voice of one of the Many's constructs apparently consists of the voices of every creature assimilated into it. Some speak coherently and apparently in unison, while others are apparently babbling and wailing incoherently.
* ImmuneToBullets: Even in their human-sized forms, bullets do little more than piss them off.
* ImplacableMan: They exist solely and wholly to assimilate and kill and obey Ghidorah's wishes.
* ItCanThink: At first, they seem like mindless monstrosities with certain behaviors in their initial form. Then the Theta-1 team find the helmet with a headcam, and the Many only start showing more intelligence from there.
* {{Jawbreaker}}: In [[https://www.fanfiction.net/s/13357907/13/ Chapter 13]], Monster X hits the MindHive[='s=] jaw hard enough to take it almost clean off. Not that the injury bothers it or even lasts.
* KeystoneArmy: {{Implied}} in Chapter 17 by the Many's POV. It's indicated that if their HiveQueen dies, they'll be left purposeless and directionless.
* LogicalWeakness: According to [[https://hrodvitnon.tumblr.com/post/656515418850230272/ Word of God]], the Many have to physically expend some of their own biomass when repairing damage, meaning that if a construct tanks enough damage and expends enough of itself fixing the damage without assimilating any new biomass, then it'll have no way to fix itself up.
* MonochromaticEyes: The reanimated Manda has one surviving eye in its head which is blank and milky-white, and more victims of theirs in [[https://www.fanfiction.net/s/13357907/17/ Chapter 17]] have this.
* TheMorlocks: Their initial humanoid forms, though technically TheVirus, have definite shades of this. They lurk in dark underground spaces, they have very Morlock-like eyeshine, these forms are even created from the {{Disposable Vagrant}}s whom were being used as labor.
* NotQuiteDead: The Theta Team attempt using explosives on the Many's initial forms. It doesn't end them all.
* LightFlickerTeleportation: One of the Many pulls a camera-swivel teleportation in Chapter 7.
* LightIsNotGood: The mildest form. They're a yellow-ish color similar to Ghidorah's gold scales, and they're anything but good news.
* LosingYourHead: The undead Manda's head deliberately rips away to escape a fight with Godzilla and Scylla.
* MeaningfulName: Its name is a reference to one of Ghidorah's [[RedBaron titles]], which in turn could be interpreted as referencing Ghidorah's singular control over multiple others (the Titans) before its death.
* MindHive: Their {{Fusion Dance}}s form this.
* MixAndMatchCritters: Particularly when they perform a FusionDance of various infected humans and Skullcrawlers.
* MonsterDelay: Their humanoid forms aren't fully seen the first several times they appear.
* MonstrousHumanoid: Their first, freshly-infected humanoid bodies.
* MultipleHeadCase: Not as straight an example as Ghidorah and Monster X. One of the Many's constructs notably has an entire, semi-autonomous upper body poking out.
* NonHumanUndead: They can and will infect and assimilate Titans and Skullcrawlers.
* OneWingedAngel: Their monstrous part-Titan {{Fusion Dance}}s in Chapter 13.
* OurZombiesAreDifferent: They have yellowish-gold, mutated skin similar to Monster X's first form. They start off as {{Monstrous Humanoid}}s due to their origin, and in this form they prove to be eerily adept at stealth and surprisingly fast, immune to bullets, and inadverse to tearing apart and devouring prey; though they prefer to drag victims off to be assimilated into the Many. And ItCanThink.
* ParasiticHorror: They're TheVirus and TheAssimilator, but this trope is PlayedWith by the first symptom when an undamaged body is infected.
--->'''Esfir:''' SNAKES IN THE BLOOD!
* PowerUpgradingDeformation: What they do to those they assimilate, especially when they fuse to form singular, even more monstrous and more powerful constructs.
* ReforgedIntoAMinion: They inflict TheAssimilator variety on multiple creatures.
* RoomFullOfCrazy: They’ve carved several fanatical scrawlings into the walls of Jonah's base, as revealed in Chapter 11.
* ShadowArchetype: The Many are similar to Monster X, and it's implied in Chapter 14 by Ghidorah that they're closer to what Ichi/Eldest Brother wanted to transform Vivienne into than Monster X is. Even Ghidorah nightmarishly incorporating the Many into its incomplete body seems like a reflection of Ghidorah's EvilPlan to eventually turn Vivienne into its fourth head. San and Vivienne's relationship is psychologically symbiotic, whereas the Many are slaves to Ghidorah with their humanity subsumed. Vivienne remains a ProHumanTranshuman whereas the Many experience TranshumanTreachery within the HiveMind.
* SinisterSilhouettes: During the MonsterDelay (see above).
* AStormIsComing: A minor example. Their appearance at Yonaguni is preceded by a thunderstorm apparently generated by them rolling in.
* SwallowedWhole: In Chapter 17, their Skullcrawler {{Mind Hive}}s are shown doing this when assimilating human victims.
* TalkativeLoon: They love expressing how much their omnicidal, oblivion-bringing originator is absolute truth and how [[Film/AvengersEndgame Ghidorah is inevitable]].
* ThereIsNoKillLikeOverkill: The Titans often have to use this to try and fully incapacitate the Many's Mind Hives, and attempt to destroy as many leftover pieces as possible to be sure.
* TranshumanTreachery: Due to being subordinated to the Many's HiveMind and driven insane.
* UndeadAbomination: They're considered this InUniverse by the Titans, who have absolutely no concept of undeath or of the dead's leftover meat regaining a life of its own.
* VillainExitStageLeft: They make a strategic withdrawal after their first clash with the Titans.
* TheVirus: They can infect and assimilate living and dead creatures, making them able to perform {{Fusion Dance}}s with their bodies and merging their consciousnesses into the Many's HiveMind where they're hopelessly insane.
* VirusVictimSymptoms: It seems to vary. According to an unreliably dazed POV in Chapter 17, a child victim had an AllergicToEvil reaction and fell sick after being infected. In the case of an infected [[spoiler:Titan]], his wound leaks pus and itches and suffers OminousHairLoss in the affected area, before Many tissue painfully bursts through the infected area and he feels the Many's HorrorHunger settling in him. Loss of color and MonochromaticEyes come afterwards.
* WasOnceAMan: They're TheAssimilator, and initial {{Artificial Zombie}}s were created by Jonah's organization fusing Ghidorah's experimented-on DNA to human hosts.
* WeatherManipulation: Not as powerful as Ghidorah's HostileWeather, but they appear to cause and sustain the thunderstorm over Yonaguni in Chapter 13.
* WouldHarmASenior: They threaten to go after [[spoiler:Susan Graham]].
* WouldHurtAChild: Bordering on EatsBabies. They go after Manda's egg (which apparently contains a fully-formed unborn hatchling) seeking to assimilate it, and children are among the victims they assimilate in Berezniki.
* YouCantKillWhatsAlreadyDead: Their TheVirus and AnimateDead nature makes them very difficult to wholly kill.
[[/folder]]

[[folder: [=MaNi=]/Elder Brother ('''*Unmarked Spoilers*''')]]

The result of Ghidorah's right head creating an autonomous "patchwork body" for itself separate of Ghidorah, using the Many. Nicknamed [=MaNi=] by the author.

----

* AlienBlood: He bleeds the same black blood as Ghidorah and Monster X.
* AlternateSelf: He's a "shed skin" of Ni/Elder Brother, with Ghidorah's body having regenerated its right head along with a backup of Ni's mind as of Chapter 17. [=MaNi=] acts even ''more'' AxCrazy than the Ni attached to Ghidorah -- the author explains [[https://hrodvitnon.tumblr.com/post/656909793179631616/ here]] what causes it.
--->'''Monster X:''' ''[to Ghidorah's right head]'' I do hope you're more of a gentleman than your shed skin was.\\
'''Ni:''' UNLIKELY. I HAD SUCH DELICIOUS DREAMS OF YOUR BLOODSHED.\\
'''Monster X:''' At least you're consistent.
* AndYourLittleDogToo: He [[spoiler:rips San's head off of Monster X and attempts to [[SwallowedWhole eat him]] in front of Vivienne]]. And then in Chapter 17, he briefly targets Manda the moment he realizes Monster X cares for the infant.
* AttackTheMouth: Ultimately {{downplayed}} when Vivienne violently attacks his mouth and his gullet. While it does send [=MaNi=]/Elder Brother into a panic and while she does cause quite a bit of damage to him, it doesn't kill or seriously cripple him.
* AxCrazy: He's batshit crazy, with a hard-on for the idea of driving Vivienne to commit mindless violence, and [[https://hrodvitnon.tumblr.com/post/648508725162803200/ the author]] comments he has a "murder boner".
* BellyMouth: Besides the mouth on his Ghidorah head, he also has the fused-together remnants of his Skullcrawler host's mouth in his body's sternum.
* BewareMyStingerTail: His patchwork body has a thagomizer-like tail.
* BladeBelowTheShoulder: He re-forms a broken bone in his arm into a retractable spike-claw.
* BloodKnight: Vivienne notes that Ni/Elder Brother always cared more about fighting and killing for the sheer sake of it, compared to how Ichi/Eldest Brother takes glee in tormenting Ghidorah's prey pre-mortem. This particular shed skin is even more AxCrazy about violence than the normal Ni is.
* BreathWeapon: He retains his Gravity Beam in his current state.
* CombatSadomasochist: He has a "murder boner" for torturing Vivienne and the idea of driving her to mindless violence. Being on the receiving end of such violence from Monster X doesn't turn him off in the slightest.
* DaylightHorror: Briefly. He makes his DynamicEntry during the day, and unlike when the Many's Skullcrawler-made {{Mind Hive}}s attacked, there's no prominent storm accompanying him in the sky.
* TheDragon: Pun intended, but he functions as this to Ghidorah, although he's also TheResenter.
* DynamicEntry: He pulls one on an unprepared Monster X in Chapter 15.
* EliteMook: [[https://hrodvitnon.tumblr.com/post/656515418850230272/ The author]] has described him as a "weird combat form" for the Many. He has a Gravity Beam, and seemingly trades the Many's default HorrorHunger for unrestrained AxCrazy.
* EvilCounterpart: He's one to San (see his folder).
* EvilIsBigger: His patchwork body is apparently larger than Monster X's second form.
* EvilMakesYouUgly: He looks as horrific as you'd expect and then some from merging with the Many. Ghidorah exploiting the Many in the first place is considered a new low even for them.
* EvilOverlooker: The [[ImageLinks/AbraxasHrodvitnon Chapter 17 cover art]] has an old design of [=MaNi=], in silhouette, overlooking Thor.
* EvilSoundsRaspy: Being a shed skin of Ni/Elder Brother, he would have the same voice. See Ghidorah's folder for details.
* EyeScream: In Chapter 16, Vivienne and San slash one of his eyes in self-defense. Then in Chapter 17, they gouge out both his eyes.
* ForTheEvulz: It's pretty clear he's not just doing what Ichi/Eldest Brother wants and is enjoying torturing Monster X immensely for his own sadism in Chapter 16.
* GoingToGiveItMoreEnergy: {{Inverted}}. [=MaNi=]/Elder Brother is genuinely surprised when he realizes Monster X is VampiricDraining not just a chunk of his energy which he can still survive without, but literally all of it.
* HateSink: He arguably supercedes Jonah and Guard B-04 in this department within a short time, when he brutalizes and tortures Monster X with utter viciousness the likes of which could match even Ichi/Eldest Brother's cruelty, he [[spoiler:attempts to kill San in front of Vivienne (and almost succeeds), and he gleefully targets the infant Manda just to hurt Viv and San]]. [[https://hrodvitnon.tumblr.com/post/653738862095532032/ One reader]] even gave him the Fan Nickname, Grade A [=GigaBastard=] Supreme.
* IgnoredEpiphany: {{Downplayed}}. He seems to briefly pause and recall Ghidorah's tragic early beginnings when Vivienne says the right word with the right context, but he promptly brushes it off.
* ImpaledWithExtremePrejudice: Getting impaled with a church steeple is just the ''start'' of his KarmicDeath.
* InLoveWithYourCarnage: Calling it "love" would be a gross misuse of the word, but otherwise this trope is PlayedStraight by him in regards to Vivienne's capacity for Ghidorah-like extreme violence. The author comments he has a "murder boner".
* {{Jawbreaker}}: When Monster X rips his head off, they only take off the upper skull, whilst his jawbone is still attached to his body.
* JustDesserts: {{Downplayed}} and {{lampshaded}}. Monster X finishes his RasputinianDeath by VampiricDraining him, turning him into nothing more than food.
* KarmicDeath: He gets a RasputinianDeath at the hands of the very same Titan that he viciously tortured and hurt in a rape-like manner and whom he pulled AndYourLittleDogToo on. But more than that, Monster X finishes him off by essentially turning him into food while his severed head watches, ''just like'' what he tried to do to San in front of Vivienne; and going out in such an anticlimactic way as VampiricDraining psychologically breaks [=MaNi=] as he dies, fitting how he psychologically tortured Vivienne.
* LaserGuidedKarma: He gets a mild case in Chapter 16 – after Ni/Elder Brother abused his Youngest Brother and made him think he was scarcely above dirt for billions of years, [=MaNi=] gets treated by both Ichi/Eldest Brother and San-2/Youngest Brother as a lesser being than both of them due to now being a "shed skin".
* LosingYourHead: Monster X rips his upper-skull off his body and makes it helplessly watch what they do to him next.
* NoSenseOfPersonalSpace: He deliberately does a lot of this to Monster X in Chapter 16, mainly to get Vivienne riled up and uncomfortable.
* OurDragonsAreDifferent: After gaining a single-headed, one-tailed body via the Many, he now possesses four crawling limbs, and also two wings apparently assimilated from a [[Film/GodzillaVsKong Warbat]]. He's even more blatantly vicious than Ni/Elder Brother usually is, and covets Vivienne so he can torment her and revel in her violence.
* OOCIsSeriousBusiness: Vivienne knows something is wrong when Ni/Elder Brother halts his usual ferocious behaviour to gently trace her features with a claw and draw her blood.
* PervertedSniffing: He does this to Monster X, using his tongue to smell.
* PowerGlows: He does this as part of an intimidation display in Chapter 16.
* PowerIncontinence: {{Averted}}. According to [[https://hrodvitnon.tumblr.com/post/656515418850230272/ the author]], he, uniquely among the Many, can wilfully turn his [[TheVirus Many]] tissue's infectiousness off at will if he wishes.
* PsychoticSmirk: He has one on his face right before he [[spoiler:stabs Monster X]] in Chapter 16.
* QuizzicalTilt: He responds this way when Vivienne says a particular word that reminds him of before Ghidorah's SlowlySlippingIntoEvil.
* RasputinianDeath: He gets [[ImpaledWithExtremePrejudice impaled]], paralyzed by a severed spinal chord, his tail is ripped off and [[StopHittingYourself used to beat his skull into pulp]], and ''then'' what's left of his head gets ripped off, and Monster X slowly finishes him off by VampiricDraining him into oblivion.
* TheReasonYouSuckSpeech: He participates in the one Ichi/Eldest Brother and San-2/Youngest Brother give San (see San's folder). [=MaNi=] originally would've received a short RYS Speech in Chapter 17 but it was cut; [[https://hrodvitnon.tumblr.com/post/656909793179631616/ mentioned here]].
* TheResenter: He's a villain-to-villain case. He's subservient to Ghidorah, but Vivienne observes that he'd rather have her all to himself to torture instead of having to share her with his brothers now that he has an independent body.
* RetractableAppendages: The bone spike he forms in his arm is retractable.
* {{Sadist}}: Although Ni/Elder Brother is usually more interested in straight-up killing than in making his prey die in pain; in Chapter 16, [=MaNi=] demonstrates that Ni can be ''just'' as creative and vicious as Ichi/Eldest Brother if not even '''worse''' when he really takes an interest in torturing Vivienne.
* SlasherSmile: He gives Vivienne a couple terrifyingly perverse ones.
* SmallNameBigEgo: He insists that he's still a part of Ghidorah, but as far as Ichi/Eldest Brother and San-2/Youngest Brother are concerned, he as a "shed skin" is only worthy to be Ghidorah's servant.
* SnakesAreSinister: If the fact he's a shed skin of Ghidorah isn't enough, there's also that his body incorporates both a Skullcrawler ''and'' a Warbat into it. Maybe Ghidorah just favors serpentine creatures as worthy pawns because of their resemblance to it?
* StalkerWithoutACrush: The "without a crush" part is ''horrifically'' ZigZagged by him. The author [[https://hrodvitnon.tumblr.com/post/648508725162803200/ confirmed]] [=MaNi=]/Elder Brother has a "murder boner" but not an actual boner for the idea of successfully driving Vivienne to Ghidorah-like psychosis, and he seems ''really'' enthusiastic to [[ExploitedTrope exploit]] RapeIsASpecialKindOfEvil when psychologically torturing Monster X to that end.
* StopHittingYourself: In Chapter 17, Monster X rips his tail off and uses it to beat his skull to pulp.
* StupidEvil: San-2/Youngest Brother observes that him being too careless when brutalizing Monster X nearly killed Vivienne in a way that Ghidorah might've been unable to revive her from, which would've ruined [=MaNi's=] long-term desires for her as much as Ghidorah's.
* TeethFlying: In Chapter 17, a blow from Monster X sends teeth flying from the maw on the Skullcrawler half of his body.
* TooDumbToLive: In Chapter 17, he's well aware Monster X is luring him into an ambush and pursues it anyway, despite having no knowledge of what Monster X in its new form is capable of.
* TookALevelInJerkass: The main Ni/Elder Brother is not nice ''at all'', but [=MaNi=] manages to be worse. According to [[https://hrodvitnon.tumblr.com/post/656909793179631616/ Word of God]], this is due to both his lack of a RestrainingBolt and exposure to his Skullcrawler host's mental processes.
* TortureTechnician: PlayedWith. In Ghidorah's lair, he's the one who does the physical work of inflicting ColdBloodedTorture on Monster X.
* UndignifiedDeath: The final phase of his death is an InUniverse case from his perspective, partly because he's being deprived the over-the-top CombatSadomasochist violence he craved.
* VillainousBreakdown: He loses all glee during his UndignifiedDeath (see above).
---> '''[=MaNi=]:''' I AM... YOU CAN'T... [[SmallNameBigEgo I AM STILL PART OF]]...\\
'''Monster X:''' You are food. Nothing more.
* VillainousIncest: He's ''more than happy'' to thoroughly torment and traumatize Vivienne in a manner humans consider sexual in order to drive her to psychotic rage, despite considering Monster X both a [[BrotherSisterIncest sibling]] and an [[ParentalIncest offspring]].
* VillainTakesAnInterest: Before separating from Ghidorah, he particularly reacted this way to Vivienne's UnstoppableRage in Chapter 13, whereas up until then the right head had the least interest in her of the three, as described by [[https://hrodvitnon.tumblr.com/post/640180207918235648/ Word of God]].
* WouldHurtAChild: He has zero compunctions against targeting a defenceless infant in Chapter 17 – if anything, it being a defenceless infant ''encourages'' this Grade A [=GigaBastard=] Supreme.
[[/folder]]

!Other Titans
[[folder: Thor]]
!!!'''Scientific name:''' ''Titanus þunraz''
A bio-electrical Titan who rejected King Ghidorah's summons during the Mass Awakening, and aids Viv and San. He is loyal to Godzilla and Mothra. His kind are known among the Titans as the Thunderers.

----

* BeenThereShapedHistory: The details are mysterious, but it's believed he influenced the [[StockUnsolvedMysteries Dyatlov Pass Incident]] before awakening in modern times.
* BlueIsHeroic: His electrical powers specifically produce [[YellowLightningBlueLightning blue lightning]], and he has blue eyes.
* CruelAndUnusualDeath: [[spoiler:He'd agonized by the Many's infection brutally reshaping his body and Keizer Ghidorah partly assimilating him, all whilst his pain receptors are still online and whilst he uses HeroicWillpower to try holding onto his fading mind]].
* DefiantToTheEnd: [[spoiler:He continues ferociously resisting Keizer Ghidorah with HeroicWillpower even when he's partly assimilated into it, pulling a TakingYouWithMe]].
* FishOutOfTemporalWater: Like the other Titans, he's been asleep for millennia, and is surprised in [[https://www.fanfiction.net/s/13357907/7 Chapter 7]] at the world's modern state. He’s also dismayed in [[https://www.fanfiction.net/s/13357907/12 Chapter 12]] that humans' knowledge of him and of the Bone Singer/Grave Chanters' ways have largely died out.
* FourFingeredHands: He explicitly has four fingers on each hand, which underneath his gauntlets are probably like a goat's hoof-toes based on [[https://hrodvitnon.tumblr.com/post/646473689669533696/ the author's artwork]].
* FriendToAllChildren: Threatening "young ones" that he cares about is apparently a surefire way to put you on his kill list.
* HeroicBuild: The author's artwork shows he has a bodybuilder-like torso and limbs.
* HeroicSacrifice: [[spoiler:After getting infected by the Many, he charges Keizer Ghidorah and lets it partly assimilate him. Using HeroicWillpower, he wrestles with Keizer for control of its forelegs long enough to help the other Titans vaporize them both]].
* HeroicWillpower: In Chapter 17, [[spoiler:despite being infected by the Many and agonized by his partial assimilation into Keizer Ghidorah; by reciting an ancient galdr, he uses this trope to turn parts of Ghidorah's own body against it and aid the heroes to the end]].
* LastOfHisKind: He's the only known survivor of his kind, the rest having been wiped out by Ghidorah in ancient times.
* MixAndMatchCritters: He's overall primate-like, but also has traits of caprinae such as goats.
* MyBelovedSmother: {{Downplayed}} in Chapter 13, when he takes issue with Monster X entering a fight when he thinks Vivienne isn't ready.
* OriginalCharacter: He's an original Kaiju of the author's creation.
* PapaWolf: It's hinted that he feels quite paternal towards Vivienne from the moment he's awoken by her call. There's a reason for this.
* ParentalSubstitute: {{Inverted}}. It's revealed in [[https://www.fanfiction.net/s/13357907/13 Chapter 13]] that he's protective of Vivienne because of his own son's brutal death in combat.
* RasputinianDeath: [[spoiler:His arm gets torn apart by the Many infecting it, he gets partly and gruesomely assimilated into Keizer Ghidorah, and at one point he's still alive even with his ''neck snapped'' before he and Ghidorah are vaporized]]. Likely {{justified}} by [[spoiler:the reanimating effects of the Many]].
* RedIsHeroic: He has red-colored hair.
* RevengeBeforeReason: When it comes to San, this trope is {{averted}} by him. However, in Chapter 17, vengeance for [[spoiler:his son's death]] overtakes him and he [[spoiler:charges ahead looking to kill Ghidorah -- this ultimately leads to his death]].
* ShockAndAwe: Has bio-electrical powers, which he can use offensively by releasing electrical arcs or as a form of communication with other bio-electrical Titans.
* SparedButNotForgiven: He chooses to help Viv and San, despite having a personal reason to hold a grudge against the latter head, but he makes it clear that he still can't bring himself to forgive San.
* SurvivorGuilt: Has a small amount concerning the genocide of the rest of his species, because he knows he went into hibernation as much to preserve his own life as to prevent Ghidorah from using his powers for its own ends.
* SuspiciouslySimilarSubstitute: A Titan resembling a giant ape who's fierce yet seems to have a stronger emotional connection to humans because they're primates, is protective of the female protagonist in an almost paternal manner, personally hates a reptilian BigBad (due to [[spoiler:them killing his family in the past no less]]), and was able to stubbornly reject Ghidorah's alpha call during the Mass Awakening. Sound like anyone? The author even suggests [[https://hrodvitnon.tumblr.com/post/656635359659180032 here]] that the Thunderers and ''Titanus Kong'' probably have a history with each-other.
* TakingYouWithMe: [[spoiler:He uses this rationalization in his final moments when fighting Keizer Ghidorah with HeroicWillpower to help the other Titans finish the monster off]].
* TerseTalker: A little bit, noticeably when he's enraged or agitated. Or at least, what he’s saying in [[AnimalTalk Kaiju Talk]] approximates to Terse Talk when translated to English.
* YouAreNotReady: He says as much to Monster X, insisting they're not ready to face [[spoiler:Ghidorah]] even if the latter is diminished.
* ZombieInfectee: [[spoiler:PlayedWith. In Chapter 17, he gets infected by the Many, but he genuinely doesn't know it and is unconvinced when Scylla tells him so, until Mothra makes him aware. Mothra trusts Thor to continue fighting with her until his HeroicSacrifice]].
[[/folder]]

[[folder: Mothra]]
!!!'''Scientific name:''' ''Titanus Mosura''
The Queen of the Monsters, who is responsible for transforming San and Vivienne into their second form.

----

* AllLovingHero: She's implied to be this by her interactions with humans and Titans in the story.
* BewareTheNiceOnes: She's angelic and benevolent, but you do ''not'' want to cause a harmful ruckus involving those she considers her children. It reflects her personality that her imago form is beautiful, elegant and has a powerful stinger.
* BornAgainImmortality: How she’s BackFromTheDead in the fic’s main time frame.
* CombinationAttack: In Chapter 17, besides participating in [[spoiler:the battle by multiple Titans against Keizer Ghidorah]], she unlocks Godzilla's [[spoiler:Spiral Heat Ray]] via their symbiotic relationship.
* HealingHands: How Mothra influenced Monster X's second {{Metamorphosis}}, according to the author [[https://archiveofourown.org/works/20059573?page=3&show_comments=true&view_adult=true&view_full_work=true#comments here]].
* MamaBear: She counts San and Vivienne among her children after Monster X comes into her care, and she's pretty scary when someone's driven Vivienne into a PTSD episode.
* MasterOfYourDomain: When she's pupating during the story, it's noted that she's taking longer to hatch than she did when King Ghidorah's takeover during the Mass Awakening forced her to speed up the metamorphosis. [[spoiler:Monster X's distress call and/or humans' prayers to her pupa prompt Mothra's timely hatching]].
* MetamorphosisMonster: Like in canon. In her larval form, her carapace becomes discolored when she's overdue to begin her metamorphosis.
* RedBaron: She’s also known as the All-Mother, Life Bringer or Giver of Life.
* RoaringRampageOfRevenge: She seems set on one over [[spoiler:Ghidorah taking Viv and San]] in Chapter 16.
[[/folder]]

[[folder: Godzilla]]
!!!'''Scientific name:''' ''Titanus Gojira''
The King of the Monsters and Ghidorah's ArchEnemy, whom Earth's Titans answer to alongside Mothra.

----

* BloodKnight: {{Discussed}}; in [[https://www.fanfiction.net/s/13357907/9 Chapter 9]], Vivienne blurts to Godzilla's face that he seems to enjoy a fight[[note]] which is a fair assumption, considering the 'smile'/'smirk' he bears at various points in the three {{Franchise/Monsterverse}} movies he's appeared in to date[[/note]], prompting him to draw the line between TranquilFury and TheBerserker for her.
* CaptainSmoothAndSergeantRough: He's a Captain Smooth towards Monster X when the latter is being trained by the Titans.
* CatlikeDragons: {{Downplayed}}, but he produces a purr-like growl as an expression of affection or reassurance, which Vivienne compares to a cat purring to its kittens when she observes it.
* CombinationAttack: He and several other Titans work together against [[spoiler:Keizer Ghidorah]] in this way. Mothra personally uses her and Godzilla's symbiosis to unlock Godzilla's [[spoiler:Spiral Heat Ray]].
* ComicBookFantasyCasting: [[https://hrodvitnon.tumblr.com/post/623720240777412608 According to the author]], Kratos from ''[[VideoGame/GodOfWarPS4 God of War (2018)]]'' is her headcanon voice for Godzilla when he communicates with Monster X.
* DeathGlare: Naturally, he has this look reserved for when he's facing down [[spoiler:his old enemy Ghidorah again]] in Chapter 17.
* DemotedToExtra: A minor case in its scope, as he's still a secondary character in the story once he becomes a part of present events rather than a mere background character.
* DynamicEntry: In Chapter 17, Godzilla's arrival on the scene is marked by his Atomic Breath exploding through the underground rock to destroy and open up the tunnels that [[spoiler:the regenerated Ghidorah]] is hiding within.
* GeniusBruiser: Like in canon, he's a cunning and tactical combatant even by Titan standards.
* GoodIsNotSoft: He tells Vivienne in Chapter 9 that he might have to "rough [her] up" if she and San cause trouble as if it would be nothing more serious than holding a drunk friend back from starting a fist-fight.
* TheGoodKing: Personality-wise, he has GoodIsNotSoft shades of this.
* GoodLipsEvilJaws: He's the Good Lips to the Evil Jaws of the Many's {{Dracolich}} form when he fights it.
* LastOfHisKind: Like Thor.
* TheNoseKnows: He notes that Vivienne/Monster X has some of the same scent on her that Serizawa did.
* OldSoldier: PlayedWith. He's an ancient and tired being who's still fighting strong and maintaining his dominance among the Titans.
* PapaWolf: He's shown hints of this towards Monster X, such as comforting them and even letting them near his vulnerable gills.
* ParentalSubstitute: He, Monster X and Rodan seem to be juggling the duty of initially caring for the newborn Manda.
* ReasonableAuthorityFigure: He keeps his reservations in check and doesn't jump to any conclusions in Chapter 9 when first meeting Monster X.
* RedBaron: He's known among Titans as the Deep One and Great King Gojira.
* RoarBeforeBeating: The tradition continues, this time when he's training Monster X in a fight in Chapter 9.
* SlasherSmile: He has two in [[https://www.fanfiction.net/s/13357907/17/ Chapter 17]]: one is his reaction to the prospect of getting to hunt with Mothra for the first time in ages, and he spares another when he and the other Titans are in the middle of tearing [[spoiler:Keizer Ghidorah]] a few new ones.
* SpannerInTheWorks: He's responsible for Vivienne and San becoming separated from Ghidorah's malevolent influence when he ripped San's head off at Isla de Mara.
* StealthyColossus: His arrival initially goes practically unnoticed by the other Titans present at his destination, in Chapter 9.
* TheStoic: It's implied this is why he's accepting of San's atonement and doesn't hold any ill will towards him.
* TailSlap: Like in canon, he favors using this as a destructive combative maneuvre. [[PlayedForLaughs Or just to shut Rodan up]] in Chapter 9.
* ThousandYardStare: Vivienne notes he has a world-weary gaze which at times appears to look right through one.
* TranquilFury: He utilizes this to fight effectively.
[[/folder]]

[[folder: Rodan]]
!!!'''Scientific name:''' ''Titanus Rodan''
A bio-volcanic avian Titan, who hates Ghidorah for taking his volcano and taking control of him during the Mass Awakening.

----

* AdaptationalHeroism: He displays loyalty to Godzilla in the fight against the Many and [[spoiler:Ghidorah]] that he hasn't displayed in Franchise/MonsterVerse canon, and here he's implicitly not malevolent unless provoked (even if it does take little to provoke him); whereas in the ''Film/GodzillaVsKong'' novelization he's outright listed as one of the nastier Titans.
* AttackItsWeakPoint: His scar might be an AchillesHeel.
* BelligerentSexualTension: PlayedWith. The author has [[https://hrodvitnon.tumblr.com/post/637986068089716737/ joked]] that Rodan suspects Monster X is sexually interested in him, when their interactions so far have been vitriolic.
* BerserkButton: Getting a whiff of Ghidorah's scent makes him forget about everything else in [[https://www.fanfiction.net/s/13357907/8 Chapter 8]], and he seems to have a bit of a grudge towards San over Ghidorah's fight with him at Isla de Mara.
* BreathWeapon: He can spit fireballs from his maw, like in unused ''King of the Monsters'' concept art and further hints in the [=MonsterVerse=].
* CantTakeCriticism: Comparing him to [[Characters/MiddleEarthFilmIndependentVillains Smaug]] isn't all that inaccurate, but less psychopathic and with a bit of JerkWithAHeartOfGold.
* CaptainSmoothAndSergeantRough: He's the Sergeant Rough when tutoring Monster X.
* CommanderContrarian: He seems to have mild shades of this. Besides initially resenting being a mentor to Monster X, his personality seems more inclined to react than to act in advance; unlike Monster X, Mothra and Godzilla.
* EasilyForgiven: Not directly to his face, but Lauren Griffin in Chapter 14 doesn't seem to hold any grudge for his massacre of the Raptors before he fell under Ghidorah's control during the movie (which to be fair, he was provoked to).
* GoodIsNotNice: He's firmly opposed to Ghidorah so long as Godzilla remains in charge, but his personality is mostly unpleasant and HotBlooded.
* HalfBreedDiscrimination: A mild case. He expresses disgust at the idea of mentoring Monster X, a "half-breed whelp", in [[https://www.fanfiction.net/s/13357907/9 Chapter 9]].
* HiddenDepths: Despite his snarky behaviour towards Monster X; [[NoodleIncident he's apparently reared Titan/s outside his own species before]], and it's {{lampshaded}} that he has some genuine words of wisdom and good advice.
* HorrifyingTheHorror: A variation. Even ''he'' is impressed when witnessing what Monster X is capable of in an UnstoppableRage.
* HotBlooded: Unsurprising, given his characterization in the movie. Mothra comments in Chapter 9 that he's a fine teacher but lacks restraint.
* JerkWithAHeartOfGold: He's the most unpleasant towards San and Vivienne out of the Titans they've interacted with so far, but he also stays true to his duty to mentor them in his own snarky way.
* ParentalSubstitute: He seems to be juggling the duty of caring for the newborn Manda with Godzilla and Monster X.
* {{Pride}}: He's bitter specifically about Ghidorah wounding his pride when it beat and enslaved him.
* RedBaron: He's also known as the Fire Demon, the One Born From Fire and the King Of The Sky.
* RedIsHeroic: Although he's not the most pleasant Titan to be around nor the most philanthropic, he is firmly on Godzilla's side in this story.
* ScarsAreForever: It's mentioned in [[https://www.fanfiction.net/s/13357907/10/ Chapter 10]] that he has a scar in his rocky skin where Mothra impaled him during the film.
* TailSlap: Downplayed in [[https://www.fanfiction.net/s/13357907/15/ Chapter 15]] when his short, fan-like tail almost slaps Viv and San in their faces, implicitly deliberately
* UnderestimatingBadassery: ZigZagged. He's confident he can match Monster X in a fight when he first encounters them, but is later disturbed and impressed by San and Vivienne's ferocity when they're truly pissed off.
* WindFromBeneathMyWings: It's minor, but his wings' sonic winds cause collateral damage at the Yonaguni battle.[[/folder]]

[[folder: Scylla]]
!!!'''Scientific name:''' ''Titanus Scylla''
A semi-aquatic Titan resembling a cross between an ammonite and an arachnid, who aids Godzilla.

----

* AdaptationalHeroism: She's firmly on Godzilla's side even when [[spoiler:Ghidorah reemerges]], whereas in the ''Film/GodzillaVsKong'' {{novelization}} she's remembered as one of the nastier Titans outright.
* BladeBelowTheShoulder: She uses her sharp-bladed legs to combatively slice openings in her foe's skin.
* FriendlyNeighborhoodSpider: {{Downplayed}}. She aids Godzilla and Mothra in the war against [[spoiler:the Many and Ghidorah]], but besides her GoodIsNotNice / GoodIsNotSoft personality, apparently she genuinely has destructive urges.
* GoodIsNotNice: She's somewhat abrasive and...
* GoodIsNotSoft: ...besides being a ruthless combatant, she will not waste time arguing about putting down [[spoiler:a fellow Titan who's been infected by the Many]].
* HitAndRunTactics: She notably uses these against [[spoiler:Keizer Ghidorah]] in [[https://www.fanfiction.net/s/13357907/17/ Chapter 17]].
[[/folder]]

[[folder: Manda (Mandazawa) ('''*Unmarked Spoilers*''')]]

!!!'''Scientific name:''' ''[[https://hrodvitnon.tumblr.com/post/185769385301 Titanus Manda]]''
A newborn marine serpentine Titan and the offspring of a long-dead old friend of Godzilla.

----

* AdaptationalHeroism: Compared to the original [[Film/{{Atragon}} Showa incarnation]] and subsequent appearances where Manda was an AntiVillain or BrainwashedAndCrazy at best; this version is a sweet, innocent child, and a TagalongKid to the heroic Titans during the FinalBattle.
* BewareMyStingerTail: A rather literal case. Even as a baby, he already has a venomous sting in his tail like the adults of his kind.
* CatlikeDragons: His physical body language as an infant is a lot like a kitten, which gets briefly {{lampshaded}}.
* ADogNamedDog: He's named after his father the Lord of Dragons, and his species.
* HappilyAdopted: [[spoiler:Come Chapter 17 and he's come to regard Vivienne as his mother and San as his uncle respectively]].
* HeadbuttOfLove: He gives Monster X one in Chapter 17.
* LineageComesFromTheFather: His father was the [[spoiler:protector of Mu]] and an old friend to Godzilla, but nothing is known about his mother except that she and the Lord of Dragons had intended to start a nest.
* MaybeMagicMaybeMundane: [[https://hrodvitnon.tumblr.com/post/637226140951625728/ The author's intention]] is to make his {{Reincarnation}} this: is Manda truly Serizawa reborn or a different entity entirely?
* NotSoExtinct: Godzilla assumed that the previous Manda and his kind were extinct before becoming aware of Manda's egg.
* OurDragonsAreDifferent: The last survivor of an ancient, draconic Titan species which lived around Yonaguni and resemble eastern dragons quite closely in appearance and behavior. Manda (and his kind) have a very snake-like body shape with green or blue scales, crystalline-looking spines, horns and antlers, and cerata appendages vaguely resembling wings.
* {{Protectorate}}: His egg before he's born, in Chapter 13.
* QuizzicalTilt: How he reacts to seeing Monster X's final form for the first time, having always known them in their second form.
* RedBaron: Possibly. His father is described by Godzilla as "Lord of Dragons".
* {{Reincarnation}}: It's implied he might be (see MaybeMagicMaybeMundane) a reincarnation of Dr. Serizawa, though without memory of his past life unlike Mothra. The author [[https://hrodvitnon.tumblr.com/post/637226140951625728/ suggested]] it might be a cosmic reward to Serizawa for making a HeroicSacrifice to a [[BigGood god]].
* ReincarnationFriendship: Assuming he is Serizawa reincarnated, him imprinting on Monster X (particularly Vivienne's head) as a surrogate mother seems like this, considering Serizawa and Vivienne had the same kind of relationship with the roles reversed. Manda also seems particularly fascinated by Ren, hinting at another familial variation.
* RidiculouslyCuteCritter: He's only comparatively small by Titan standards, but the infant Manda fits this trope to a T.
* [[SeaSerpents Sea Serpent]]: A rather draconic example (his species are outright described as dragons), although his father was benevolent towards human seafarers, and it looks like he'll be following the same route.
* StockSoundEffects: As a baby, he has a certain chirping sound effect, [[https://hrodvitnon.tumblr.com/post/631248784044736512/ according to the author]].
* SupernaturalGoldEyes: He has amber-gold eyes. The "supernatural" part becomes more relevant due to the hints that he might be Dr. Serizawa reincarnated.
* TagalongKid: In Chapter 17, he goes against Rodan's effort to keep him out of trouble and tries getting involved in the immediate Titan war on Thor and Monster X's behalfs, despite not fully knowing what's going on.
* TailSlap: He can deliver a venomous sting with a whip of his tail.
* ThemeNaming: Manda's name continues the ADogNamedDog tradition among Titans.
* WalkingSpoiler: Technically averted, as the author wasn't secretive on her Tumblr about [=Manda=]/Mandazawa's nature.
[[/folder]]

! Monarch
[[folder: Drs. Ilene and Ling Chen]]
Monarch scientists and identical twin sisters, whose family have worshipped Mothra for generations. They’re the mother and aunt respectively of Ziyi and Yong.

----

* FlashbackNightmare: Ilene admits in [[https://www.fanfiction.net/s/13357907/7 Chapter 7]] that she still has nightmares of Vivienne's death in Antarctica nearly a year on, [[spoiler:before the twins find out Vivienne is alive]].
* HumansAreFlawed: {{Discussed}} by Ilene in Chapter 12 as part of a shared KirkSummation about Emma Russell's faults.
* OCStandIn: Dr. Ling's personality gets a bit more development to show her similarities and differences from her sister, whereas in Franchise/MonsterVerse canon she's so far been a FlatCharacter with only one scene (two in the ''King of the Monsters'' novelization).
* OOCIsSeriousBusiness: It'd be hard to imagine Ilene being driven to having a venomous screaming fit at anything. But [[spoiler:what Ghidorah has done to Monster X]] in Chapter 17 successfully drives her to it.
* ShipperOnDeck: PlayedWith. Ling teases Ilene about her interactions with Mark.
[[/folder]]

[[folder: Dr. Houston Brooks]]
An older Monarch scientist, responsible for monitoring Mothra at Outpost 61.

----

* BewareTheNiceOnes: Like in Franchise/MonsterVerse canon. He's a mellow enough person and can even be somewhat nervous, but he's no pushover.
* ReasonableAuthorityFigure: His response to the analysis of Monster X's DNA in Chapter 7 establishes him to be this.
[[/folder]]

[[folder: Dr. Rick Stanton]]
A Monarch scientist who's currently stationed at Castle Bravo.

----

* TheAlcoholic: Like in ''King of the Monsters'', he's still scarcely if ever without an alcoholic beverage in hand. He wonders whether it'll be a Titan or alcohol poisoning that carries him off to the grave.
* DeadpanSnarker: Apparently, he and Vivienne have something of a friendship based around their ability to wittily match each-other in this regard.
* HiddenDepths: He already showed clear signs of being a good person beneath the DeadpanSnarker in the film; but in [[https://www.fanfiction.net/s/13357907/12 Chapter 12]], he admits that he self-reflects and worries his [[TheCynic cynicism]] might be pushing him towards the DespairEventHorizon.
* VoiceWithAnInternetConnection: He serves this role from at Castle Bravo when informing Outpost 61-a of immediate Titan activity.
[[/folder]]

[[folder: Sam Coleman]]
A Monarch man known for being timid but friendly.

----

* ThisCannotBe: In [[https://www.fanfiction.net/s/13357907/17/ Chapter 17]], he's at first in denial that ''everyone'' in the GhostTown has really vanished.
[[/folder]]


[[folder: Dr. Ishirō Serizawa]]
A prominent Monarch scientist who was essentially the organization's figurehead when alive, and the father of Ren. He had a very close relationship with Vivienne before his death and Vivienne's first death during the Mass Awakening.

----

* DeaderThanDead: Briefly {{discussed}} in relation to him in [[https://www.fanfiction.net/s/13357907/5/ Chapter 5]]. Vivienne believes that because Serizawa's body was completely vaporized, she and San couldn't bring him back the same way San resurrected her if they tried.
* FamedInStory: He's posthumously regarded the world over as something of a legend following his HeroicSacrifice.
* LikeBrotherAndSister: He had a variation with Vivienne (see her folder for details).
* OlderThanTheyLook: It's briefly lampshaded in Chapter 12 that he looked more like a man in his fifties than seventies.
* ParentalSubstitute: To Vivienne, he was a father figure, and it's strongly suggested that although she never told him she felt that way, he reciprocated the feeling. It gets PlayedForDrama in the story.
* ParentsAsPeople: PlayedWith. He was a great scientist, a wise figurehead, and he and Vivienne were mutually dear to each-other, but his son Ren could tell that Serizawa was closer to Vivienne than to his flesh-and-blood son because Serizawa and Vivienne saw eye-to-eye more.
* PlatonicLifePartners: Him and Vivienne were this, something he more or less acknowledges to her in a flashback in Chapter 5. Ilene thinks in Chapter 11 that Vivienne's death shook Serizawa to the core for the short remainder of his life.
* PosthumousCharacter: He's dead, but his memory lingers strongly throughout the story, especially with Vivienne.
* [[spoiler:{{Reincarnation}}: Though it's ultimately a case of MaybeMagicMaybeMundane, it's suggested that the newborn Manda might actually be Serizawa reincarnated]].
* TogetherInDeath: [[spoiler:Very tragically {{discussed}} by Ilene and Madison in Chapter 11. They suspect Serizawa was partly motivated to make his HeroicSacrifice in the hope that he and [[PlatonicLifePartners Vivienne]] would somehow be reunited in death, since he was unaware that Vivienne was OnlyMostlyDead after Ghidorah ate her]].
* WhenYouComingHomeDad: It's implied his relationship with Ren was like this, making time to visit Ren rarely.
[[/folder]]

[[folder: Colonel Diane Foster]]
The experienced leader of Monarch's G-Team.

----

* ColonelBadass: Like in Franchise/MonsterVerse canon.
---> I think I speak for everyone when I say none of us will sleep at night unless we see to it this zombie apocalypse horseshit is very definitely, permanently, finally burned to ashes, ''and then we burn the ashes!''
* JurisdictionFriction: {{Downplayed}} in Chapter 7 during the joint operation with Team Mauzer. She decides regardless of Team Mauzer's orders, she'll make sure no-one but Monarch can get their hands on the Titan biological samples in the abandoned outpost.
* OhCrap: Besides the G-Team's MassOhCrap in Chapter 7; in Chapter 15, Foster has one when she realizes [[spoiler:the Many were diverting Godzilla and have knocked out Castle Bravo's communications]].
* ReasonableAuthorityFigure: Unlike Admiral Stenz, she learns more from her mistakes and she's open-minded enough to decide no-one but Monarch should get their hands on Ghidorah's or Monster X's DNA. She also looks to Mark Russell for ideas and advice before the FinalBattle.
--->"''The last time I didn't take a scientist seriously the world almost ended.''"
* ScientistVsSoldier: {{Defied}} and {{averted}} by her, as described under JurisdictionFriction.
[[/folder]]


[[folder: Lieutenant Ford Brody]]
A former EOD specialist in the U.S. military who transferred to Monarch's G-Team after the Mass Awakening. He's the husband of Elle Brody and the father of Sam Brody.

----

* TheBusCameBack: He's so far appeared twice in the story, although he's DemotedToExtra.
* DemotedToExtra: He appears a couple times in the story but is a supporting character, compared to his protagonist role in ''Film/Godzilla2014''.
* OhCrap: He and the G-Team have a MassOhCrap reaction in Chapter 7 when they become aware of Ghidorah's severed head. Ford specifically says, "Shit."
[[/folder]]

[[folder: Lauren Griffin]]
The G-Team's skilled pilot.

----

* AcePilot: She gets to show off her skills in [[https://www.fanfiction.net/s/13357907/17/ Chapter 17]].
* OhCrap: She has one in Chapter 15 when she realizes the Many are headed towards [[spoiler:Castle Bravo]], where they can seize more Titan biomass for themselves.
--->"''Oh, shit.''"
* VitriolicBestBuds: With Vivienne (see her folder for details).
[[/folder]]

[[folder: Jackson Barnes]]
A G-Team soldier who participates in the joint rescue mission with Team Mauzer.

----

* PluckyComicRelief: The tradition from the film continues in Chapter 15.
* WhyDidItHaveToBeSnakes: PlayedForLaughs when Scylla shows up. Turns out Barnes is arachnophobic.
[[/folder]]

[[folder: Elle Brody]]
The wife of Lieutenant Ford Brody and mother of Sam Brody, who transferred to work for Monarch following the Mass Awakening.

----

* OhCrap: She and Zima share one when they suspect [[spoiler:the FetusTerrible nature of Esfir, Zadezhda and Lubyov's pregnancies]].
[[/folder]]

! Affiliates and Other Allies
[[folder: Madison Russell]]
The teenaged daughter of Mark Russell and the late Monarch operative-turned-eco terrorist Emma Russell. She had a close mother-daughter relationship with Vivienne before the events in Antarctica.

----

* BerserkButton: She immediately (and loudly) shuts Mariko down when the latter starts mentioning Emma in a positive light in Chapter 12, participating in the subsequent collective KirkSummation.
* DaddysGirl: She's apparently stuck with her father to make sure he doesn't go off the deep end again since the events in Boston, with her mother dead and [[ParentalSubstitute Vivienne]] having been believed dead since Antarctica.
* DemotedToExtra: Her role in this story is a bit more minor than in ''Film/GodzillaKingOfTheMonsters2019''.
* DidYouJustFlipOffCthulhu: She has no problem angrily accusing San to his face in [[https://www.fanfiction.net/s/13357907/8 Chapter 8]]. {{Justified}} as Madison was quite emotional at the time, San is attached to the same Titan body as Vivienne (who would never let any harm befall Madison), and Madison could quickly run indoors if need be; to say nothing of her DefiantToTheEnd close call in the movie.
* JustAKid: Mark says this about her almost word-for-word in Chapter 8 -- notably, he cuts her off from speaking when he says it -- prompting Ilene to point out that Madison has previously proven capable beyond her age.
* MisplacedRetribution: In Chapter 8, she angrily brings up Ghidorah chasing her in Boston, unaware that San only has the decapitated head's memories and genuinely doesn't remember what his AlternateSelf did. She also says that San killed Vivienne, though it was technically Ichi who did that while San just did the resurrecting and transforming parts.
* ShellShockedVeteran: She has some treated PTSD, not nearly as bad as Vivienne's untreated PTSD, from her encounters with Ghidorah and the events in Boston.
* SmallRoleBigImpact: She's a less foregrounded character in this story compared to her role in the [=MonsterVerse=] films, but she's responsible for working out where [[spoiler:Ghidorah and Monster X]] are located so Monarch and the Russian military can take part in the battle. If they hadn't been present, things would've likely gone very differently.
* ThatLiarLies: When snapping at San, she assumes he's lying when he says he doesn't remember Ghidorah trying to kill her in Boston, and gets understandably pissed; unaware that San [[CannotTellALie literally lacks a concept of lying]].
* [[TurnOutLikeHisFather Turn Out Like Her Mother]]: She inflicts this on herself in Chapter 17 – she struggles to go ahead with [[spoiler:activating an untested ORCA signal to help free Monster X]] because she fears it'll make her exactly like her mother when the latter awakened Ghidorah.
[[/folder]]

[[folder: Dr. Mark Russell]]
Madison's father, who suffers SurvivorGuilt after Vivienne Graham's apparent death in Antarctica which occurred partly due to her saving his life.

----

* AdaptationalAngstUpgrade: Introduced into [=AbraxasVerse=] before ''Film/GodzillaVsKong'' came out. On top of losing Emma and struggling to accept that his child has already grown up in many ways because of what she went through, Mark here suffers from SurvivorGuilt that he hasn't shown in [=MonsterVerse=] canon.
* AdaptationalJobChange: Unlike in ''Godzilla vs. Kong'', this version of Mark has not rejoined Monarch following the events of ''King of the Monsters''.
* ArbitrarySkepticism: In Chapter 8, he doesn't believe that Vivienne is BackFromTheDead transformed into a hybrid Titan, prompting Mariko to remind him of Ghidorah's other borderline-[[EldritchAbomination Eldritch]] super-abilities which Mark himself witnessed.
* CommanderContrarian: He has shades of this. Besides his ArbitrarySkepticism point, he's notably unconvinced that San has made a HeelFaceTurn, and it's when Madison finds a possible lead on where the Many have taken Monster X to that [[HotBlooded he of all people]] decides they ''shouldn't'' be hasty for once.
* DemotedToExtra: He's a more minor character in this story, whereas in ''King of the Monsters'' he was one of the main human characters.
* {{Facepalm}}: In Chapter 10, this is basically his despairing response to the news that someone besides Monarch saw Monster X fighting Rodan.
* FatalFlaw: {{Downplayed}}. Like in ''King of the Monsters'' and the novelization, he still has a tendency to run and hide from his emotional problems instead of confronting them. He at first refuses to see Vivienne because he's in his own words scared, and later when he sees her in person he unloads what he wants to say to her at a less-than-opportune time.
* FlippingTheBird: His friendly-banter response to Brooks pointing out the pack-alpha theory about wolves is outdated, in Chapter 11.
* IdiotBall: He handles it in Chapter 8 when [[spoiler:Monster X is being reborn]], asking why Monarch aren't trying to fence it with a containment field, which prompts Mariko to spell out why that would be a very idiotic move.
* ItsAllAboutMe: He gets called out on this by Mariko with TheReasonYouSuckSpeech (see below).
* JerkassRealization: The story basically confirms the film's implications that he had one about his past {{jerkass}} behavior when Godzilla was seemingly killed.
* MisplacedRetribution: He hates San for Ghidorah killing Vivienne in Antarctica, which was technically San's brother's doing while San just resurrected and transformed her afterwards.
* MyBelovedSmother: Initially, his first impulse is to shield Madison from further trauma physical or psychological, despite her having already proved her metal in Boston.
* TheReasonYouSuckSpeech: He gets one from Mariko about his past {{jerkass}} qualities and his lingering ItsAllAboutMe behavior.
--->'''Mark Russell''': Do you realize how it feels to relive losing a child to monsters turning your home into a war zone?! How close I probably was to losing my daughter the same way I lost my son?!\\
'''Mariko''': Oh, shut up for once and get in line, Russell! You talk like you're the only one who's suffered! What about everyone else who lost someone, or everyone? Do they not count? Just faceless statistics? What's so special about you that makes your problems so much more important? You talk on and on about how much you hate the Titans and how we should have killed them and blah blah blah! Spouting bullshit is all you're good for! And Graham — would you say she spent her life saving yours? Because it sounds to me like she wasted it on you!
* SurvivorGuilt: He's been suffering this because of Vivienne's death in Antarctica. It doesn't get better when Vivienne returns transformed into part of Monster X, until she sets him straight in [[https://www.fanfiction.net/s/13357907/9 Chapter 9]].
* TakeThat: Mariko having little tolerance for Mark's bullcrap (in contrast to the patient if exasperated way other Monarch characters treat him in the film and the fic), coupled with the SurvivorGuilt and YouShouldHaveDiedInstead he's received over Vivienne's HeroicSacrifice that saved him in Antarctica; seem like the author bashing Mark without crossing into Ron the Death Eater territory, as the author has admitted she finds Mark [[https://hrodvitnon.tumblr.com/post/624662973395386368/ considerably less likable and more annoying than Vivienne]]. It's quite satisfying for readers who feel the same way as her about Mark in [=MonsterVerse=] canon.
* YouHaveGotToBeKiddingMe: His response in Chapter 9 to learning Ghidorah [[spoiler:is not permanently dead yet]].
* YouShouldHaveDiedInstead: It's revealed in Chapter 9 that whilst no-one says it to his face, he knows many people at Monarch have felt this towards him regarding Vivienne's death in Antarctica, and it's implied it's significantly fueled his own SurvivorGuilt.
[[/folder]]

[[folder: Ziyi and Yong Chen]]
The toddler-age identical twin daughters of Dr. Ilene Chen, who are located at Outpost 61a with their mother and their aunt Ling.

----

* MeaningfulName: Yong's name, meaning "eternal"/"perpetual" as [[https://hrodvitnon.tumblr.com/post/648764829724819456/ noted by the author]], is rather fitting because of Mothra's immortality and the Chens' preternatural HereditaryTwinhood.
* OCStandIn: Their personalities and their relationship with Vivienne gets a bit of development, whereas in the Franchise/MonsterVerse these two have so far only ever appeared in a Chen family photo and are unnamed.
[[/folder]]

[[folder: Steve Martin]]
A photo-journalist who's among the {{Paparazzi}} drawn by the new topic of Monster X.

----

* GoingForTheBigScoop: An ethical example, but he's quite happy to be legally filming Monster X up close in Chapter 11.
* IntrepidReporter: He's among the {{Paparazzi}} who give Monarch a spot of security bother, but is concerned about reporting to people while encouraging them to act reasonably about the information.
[[/folder]]

[[folder: Susan Graham]]
The widowed mother of Vivienne.

----

* AdultFear: It's revealed in [[https://www.fanfiction.net/s/13357907/15/ Chapter 15]] that she used to genuinely worry about Vivienne's life due to her line of work and Monarch’s socio-political unpopularity at the time.
* BewareTheNiceOnes: She was a nice old lady, but turned pretty fearsome when she thought someone was mocking her dead loved one.
* CryIntoChest: [[spoiler:She does a cry-into-their-snout variation with Vivienne, who is likewise crying with her, in Chapter 15]].
* DeadpanSnarker: Chapter 15 shows through her where Vivienne gets it from.
* DeathGlare: Gave Sam Coleman a rather frightening look at one point.
* NatureLover: Vivienne mentions that one of the last time she spoke to her mother, she wanted to see the hammerhead sharks at Yonaguni.
* OCStandIn: In the Franchise/MonsterVerse canon she was [[TheGhost only mentioned]] in [[AllThereInTheManual Manual]] materials.
* [[spoiler:OutlivingOnesOffspring: Or so she thinks, initially unaware that Vivienne was OnlyMostlyDead. It's had an impact on her]].
* PosthumousCharacter: [[spoiler:{{Subverted}}.]] Both Vivienne and the reader are in the dark for a while about whether she's still alive or died during Ghidorah's global Titan havoc, [[spoiler:before it's revealed in Chapter 11 she's alive]].
* TheReasonYouSuckSpeech: She [[spoiler:gets one from San (see his folder)[[note]]Listed there to avoid spoilers[[/note]]]]; overlaps with CallingTheOldManOut.
* StrongFamilyResemblance: To her daughter Vivienne when the latter was human (see Vivienne's folder for details).
* [[spoiler:ThatThingIsNotMyChild: The author [[https://hrodvitnon.tumblr.com/post/640223530836967424/ confirmed]] that Susan is very much thinking this at first when she encounters Monster X, not because of Vivienne's transformation but because she truly believes it isn't Vivienne]].
[[/folder]]

[[folder: Ren Serizawa]]
The son of the late Dr. Ishirō Serizawa, who is investigating the Yonaguni Monument. He isn't a Monarch operative, but is in communication with them.

----

* AdaptationalHeroism: Compared to the ''Film/GodzillaVsKong'' version of Ren, let just say the [=AbraxasVerse=] version isn't a MugglePower ruthless EvilGenius out to see Godzilla killed.
* AdaptationPersonalityChange: Alongside the AdaptationalHeroism, this version of Ren is interested in marine archaeology and so far hasn't shown any affinity for tech work.
* AdmiringTheAbomination: Though he didn't quite understand his father's and Vivienne's reverence of the Titans, he gains an awareness of their {{Physical God}}hood in Chapter 13.
* FailedASpotCheck: When informed in Chapter 13 that multiple Titans are approaching Yonaguni, he doesn't realize ''what'' the hell that means he (currently on the island's open waters) should be doing at this very moment.
* FailureToSaveMurder: A non-fatal variation, and {{downplayed}}. In Chapter 16, Mark is quick to lay into him after [[spoiler:Monster X is abducted by the Many]], just because Ren happened to be there shortly before it happened, even though as Ren points out there was literally nothing he could've done.
* GreenEyedMonster: He's aware of how his father [[LikeADaughterToMe felt towards Vivienne]], and it had an impact on his relationships with them.
* HeroicNeutral: The [[https://hrodvitnon.tumblr.com/post/641317119466815488/ author]] has described Ren as being roughly here on the alignment chart. He's a civilian rather than a member of Monarch, and he only becomes a major part of the situation after trouble comes to him and when he has something of a personal stake in it.
* LikeFatherLikeSon: Dr. Brooks lampshades in Chapter 11 that he's studying marine history including Titans, not unlike his late father's interest in Godzilla. Mark observes him exhibiting an aura evocative of his late father in Chapter 17.
* LikeFatherUnlikeSon: The above having been said, Ren isn't as stoic or secure as his father was, and he also didn't understand his father's and Vivienne's reverent attitude towards the Titans for a long time.
* NotSoStoic: Vivienne notes that unlike Dr. Serizawa's stoic personality, Ren's frosty demeanor is more of a mask which he uses to restrain his unresolved emotional issues (and he has a few regarding his late father).
* OCStandIn: The ''Abraxas'' version of Ren was introduced when the character was still TheGhost in Franchise/MonsterVerse canon, before he was confirmed to appear in ''Film/GodzillaVsKong''.
* UnusuallyUninterestingSight: Mentally {{invoked}} by him in Chapter 14. He wonders if devastation to population centers by battling Titans will one day become as much the norm as traffic jams in the near-future.
* WhenHeSmiles: He's apparently not known to smile often, but when Vivienne sees him smiling in Chapter 13, it's a bittersweet reminder of the late Dr. Serizawa.
[[/folder]]

[[folder: Nadezhda, Esfir and Lubyov]]
Pregnant female survivors from the abandoned Monarch outpost who encountered Jonah's Basement Club.

----

* ChildByRape: Certainly PlayedWith regarding their unborn children, who are apparently [[spoiler:the result of non-consensual artificial insemination by the Basement Club. Their Children of Zmei are implied to be FetusTerrible not so much because of this trope as because of the nature of their connection to Ghidorah]].
* FetusTerrible: Their as-yet unborn offspring, [[spoiler:implied to be the result of artificial insemination by the Basement Club and to be connected to [[SatanicArchetype Ghidorah]], appear to be this]].
* FreakOut: Esfir's mind seems to be broken after her traumatic ordeal at the Basement Club's hands.
* HappilyMarried: Nadezhda and her husband Zima.
* NoNameGiven: They're only known by their first names. Nadezhda and Esfir's last names consist of six characters respectively, and Lubyov's last name consists of ten characters.
* OnlySaneWoman: Nadezhda appears well-adjusted with a relatively normal and non-quirky personality compared to the other two.
* OriginalCharacter: The three of them are apparently not based on any characters or [[OCStandIn background extras]] from the Franchise/MonsterVerse canon.
* PossessionBurnout: PlayedWith. It's mentioned in Chapter 15 that Nadezhda is losing weight as [[spoiler:her pregnancy progresses]].
* TheVoiceless: Lubyov hasn't been described speaking a single word, and is described InUniverse as "deathly silent" and as having always been quiet.
[[/folder]]

[[folder: Lieutenant Commander Pasternak]]
The leader of Team Mauzer during the joint operation investigating the abandoned Monarch outpost. He acts as a liaison between Monarch and the Russian military.

----

* AFatherToHisMen: He's this from what we see in [[https://www.fanfiction.net/s/13357907/7 Chapter 7]] of his interactions with Krupin, one of the men under his command.
[[/folder]]

!Alan Jonah's organization
[[folder: Alan Jonah]]
A former British Army colonel, who leads an underground paramilitary organization of mercenaries and eco-terrorists. He’s responsible for retrieving the severed Ghidorah head that Monster X is growing inside, and keeping Viv and San caged after their rebirth to further his misanthropic goals.

----

* AdaptationalAngstUpgrade: {{Inverted}}. In ''King of the Monsters'', Jonah indicated his turn to villainy was influenced by decades of witnessing the worst of humanity first-hand over and over at least as much as it was influenced by his daughter's murder. In ''Abraxas'', the former reason for Jonah's dark side turn is brought up minimally and his daughter's death is treated as his chief motivator, making his start of darkness significantly more self-centred.
* AdmiringTheAbomination: Aside from making a snark about how beautiful Monster X looks, during his SanitySlippage he seemingly starts to really view Monster X and/or Ghidorah as a superior lifeform (though it's not enough to stop him trying to break them), [[spoiler:and becomes a straight-up pro-Ghidorah fanatic when he's joined with the Many]].
* AlasPoorVillain: Though he's still an evil man who's way past the Moral Event Horizon, the revelation just after his death that he [[spoiler:wanted to use Monster X or Ghidorah's HealingFactor to try and resurrect his dead daughter]] can evoke just a little pity for him.
* ArcVillain: He serves as the primary/most visible villain for the first six chapters' StoryArc, when San and Vivienne are in their crippled first form and are imprisoned by him.
* AxCrazy: Has an uncharacteristic bout of this in [[https://www.fanfiction.net/s/13357907/5 Chapter 5]] involving a napalm experiment, signifying his SanitySlippage. [[spoiler:Then he joins the Many's shared Ax-Crazy]].
* BadBoss: There's his lack of consideration for his soldiers' welfare (see ItsAllAboutMe), which may be {{justified}} by his SanitySlippage. In [[https://www.fanfiction.net/s/13357907/2 Chapter 2]],he states that he'll have any {{Disposable Vagrant}}s who show signs of feeling too sorry for Monster X shot to avoid a MercifulMinion scenario. [[spoiler:And that's not even going into his PlayingWithSyringes]].
* BigBadWannabe / DiscOneFinalBoss: He serves as the main human BigBad for the first several chapters, [[spoiler:then becomes a meat puppet to Ghidorah]].
* BreakThemByTalking: He tries this on Monster X in Chapter 5. They later turn the tables on him with a [[TheReasonYouSuckSpeech "Reason You Suck" Speech]].
* TheCorruptible: He isn't a decent person by any stretch before his SanitySlippage starts showing, and it's probably why he went the way he did instead of becoming a suicidal ReluctantPsycho.
* CruelAndUnusualDeath: [[spoiler:He gets ripped off of a monstrous ArtificialZombie FusionDance he was part of and squeezed to pulp]].
* DeathByAdaptation: His death is introduced in ''Abraxas'' before ''Film/GodzillaVsKong'' and its novelization came out. The ''[=GvK=]'' novel indicates Jonah is still at large at least three years after the events of ''King of the Monsters'' in [=MonsterVerse=] canon, whereas in [=AbraxasVerse=] he's killed for good just a year after the film's events.
* DirtyCoward: He's not so willing to risk or sacrifice his own life, but is fine with killing others if he thinks it'll aid his goals. San and Vivienne consider him a coward, and he's definitely not quite as strong as he thinks he is.
* EvilIsNotAToy: He evidently [[IgnoredEpiphany hasn't taken any meaningful lessons away]] from what happened when he and Emma thought they could make Ghidorah do what they wanted it to, based on his PlayingWithSyringes and his trafficking of Ghidorah's DNA.
* EvilutionaryBiologist: He expresses a belief in his SanitySlippage in [[https://www.fanfiction.net/s/13357907/6 Chapter 6]] that humans and Titans need to be fused like what Ghidorah has done to Vivienne, in order to remake the world anew.
* FatalFlaw: Pride. It's him being a SmugSnake when it comes to imprisoning and manipulating Monster X, and also messing with the decapitated Ghidorah-head and overall thinking himself a stronger and smarter person than he really is, that ultimately bites him in the ass.
* FauxAffablyEvil: He pulls this off with hints of DeadpanSnarker towards Mariko and Vivienne.
* ForTheEvulz: It gets lampshaded in [[https://www.fanfiction.net/s/13357907/17/ Chapter 17]] that Jonah and his paramilitary had nothing to gain from PlayingWithSyringes – they pretty much did it just to see what would happen.
* FreudianExcuseIsNoExcuse: Vivienne thinks as much when he tries to [[ExploitedTrope exploit]] SympathyForTheDevil, mentally noting his tragedy doesn't in any way justify putting ''millions'' of innocent others through the same pain he experienced.
* HateSink: If him ordering the cruel experiments on Monster X and him attempting to break Vivienne down to brainwash her aren’t enough to induce this, then the revelation that he's [[spoiler:been having his DisposableVagrant labor (who mostly consist of families with children who lost their homes in the Mass Awakening) kidnapped, experimented on and turned into the {{Artificial Zombie}}s and his little VillainousBreakdown]] in Chapter 6 will.
* {{Hypocrite}}: He's a lot less willing to sacrifice his life compared to sacrificing others' lives (including someone who was like a son to him) for the so-called "greater good".
* IgnoredEpiphany: He's obviously responded this way to the aftermath of Ghidorah's death and the subsequent human-Titan coexistence. So long as there are human beings in the world, he'll never be satisfied.
* ItsAllAboutMe: He doesn't care much about his soldiers' welfare during his SanitySlippage, and he's called out in the same scene for using his surrogate son as a meat-shield but being unwilling to risk his own life when Emma Russell held him at gunpoint. As Vivienne notes, he's indirectly caused millions or billions of people to suffer all because of his own personal loss. [[spoiler:And there's his true motivation for sacrificing people to his PlayingWithSyringes...]].
* JerkassHasAPoint: He snarkily asks Mariko if she's proud of getting her friends killed when she set Behemoth loose, in [[https://www.fanfiction.net/s/13357907/3 Chapter 3]]. She doesn't give a proper answer.
* KarmicDeath: [[spoiler:He's killed for good by the same two-headed Titan he tortured and tried to break down]].
* LackOfEmpathy: Has zero compunctions against ruthlessly breaking down Monster X to further his own goals, [[spoiler:or against using his paramilitary's manual labour as unwilling human guinea-pigs for PlayingWithSyringes]].
* LaserGuidedKarma: He has the hubris to mess with the remains of a highly-regenerative and omnicidal EldritchAbomination, [[spoiler:and he creates {{Artificial Zombie}}s from non-consenting human test subjects. He eventually shares his victims' fate due to Ghidorah's remains inducing SanitySlippage and making him a pawn; to say nothing of his KarmicDeath]].
* LeanAndMean: Vivienne at one point lampshades this trope in passing, noting Jonah has always had this kind of figure about him.
* LittleNo: He gives the first type in response to Vivienne's warnings to him in Chapter 6, although it's completely arrogant on his part.
* LoveMakesYouEvil: His motivation for most of his initial atrocities in the story are [[spoiler:thinking he can use an alien HealingFactor to resurrect his daughter, whose death was the main cause of his original turn to villainy]].
* MadScientist: [[spoiler:His SanitySlippage makes him seem to wholly devolve into this during his PlayingWithSyringes, before he turns into part of the Many]].
* NiceJobFixingItVillain: It's implied that Vivienne learning of Serizawa's death, which Jonah wanted her to be informed of to break her down, might've contributed to Viv and San forming a stable relationship which enabled them to better work together.
* OhCrap:
** When he realizes he was too late preventing Monster X from finding out about his PlayingWithSyringes.
** And when he's about to die [[spoiler:after what's left of him is ripped out of the Many's construct]].
* OOCIsSeriousBusiness: Colonel Foster knows something isn't right when she becomes aware of Jonah's AxCrazy moment, in Chapter 7.
* ParentalSubstitute: Asher (a.k.a. Ash) was [[LikeASonToMe like a son]] to him. It wasn't enough to make Jonah consider putting him in a non-risky position to increase Ash's chances of staying alive, though.
* NonActionBigBad: He seems like this, considering the protagonists are a two-headed half-Ghidorah {{kaiju}}, though he's ultimately a DiscOneFinalBoss.
* PlayingWithSyringes: It's revealed that he's been dabbling in this, [[spoiler:using the {{Disposable Vagrant}}s as unwilling test subjects; fusing Ghidorah's DNA to humans and creating {{Artificial Zombie}}s]].
* TheReasonYouSuckSpeech: He gets one from San and Vivienne in Chapter 6 for using someone who was [[LikeASonToMe like a son to him]] as a meat-shield and being unwilling to risk his own skin:
--->'''Vivienne''': Did you stop and think, maybe have someone else take point? Someone who isn't like your own family? A real father would trust his son's abilities, but still do what he can to help him. I would have risked my life to save someone. I ''died'' saving someone.\\
'''Jonah''': Congratulations, you’re a hero.\\
'''San''': And you. Are a cow-ard.\\
'''Vivienne''': You said Madison escaped with the ORCA. Remember that? So how did Emma get out? Did she help Madison, or…\\
[…]\\
'''Jonah:''' […] Since my men refused to cooperate, she held me at gunpoint.\\
'''Vivienne''': And?\\
'''Jonah''': …I let her go.\\
'''Vivienne''': Imagine that. Hardened mercenaries against one scientist. Tell us, ''Colonel'', did you think your men wouldn’t fire fast enough before she took the shot?\\
'''San''': Would you. Have sacri-ficed one of your own. To keep your-self. A-live?
* RestartTheWorld: He basically invokes this in relation to Monster X and [[spoiler:the Many]] when he's increasingly suffering SanitySlippage in Chapter 6.
* SanitySlippage: Due to the severed Ghidorah-head's borderline-MindRape psychic influence. First he has an AxCrazy episode, then he becomes more unkempt and acts eerily like he's been spending too much time around [[MassEffect/MassEffectRaceTropes Reaper tech]]. [[spoiler:Finally, he becomes an insane, fanatical part of the Many]]. The author [[https://hrodvitnon.tumblr.com/post/645773162912546816 went into further detail]] about what its early stages were probably like from Jonah's perspective.
* SlasherSmile: After his SanitySlippage, he at one point gives Monster X a "rictus grimace of a smile".
* SmugSnake: He thinks he can psychologically break down Monster X as he did Emma Russell, and there's him holding the VillainBall. He's also too arrogant to realize he's experiencing an induced SanitySlippage courtesy of the Ghidorah head, thinking he's been enlightened.
* SympathyForTheDevil: He tries to [[ExploitedTrope exploit]] this by bringing up what happened to his daughter in Chapter 6. Vivienne doesn't fall for it, noting FreudianExcuseIsNoExcuse for the things he's done. Vivienne suspects Jonah previously used this trick successfully on Emma Russell to turn her to the dark side.
* TragicVillain: Similarly to in the ''King of the Monsters'' novelization, his turn to villainy was mainly triggered by the murder of his daughter years ago. [[spoiler:And he was meddling with Ghidorah's DNA and Monster X because he believed he could resurrect a lost loved one, implied to be his daughter]].
* UnwittingPawn: It's implied he might've been the kind that blunders into helping rather than being actively manipulated, when he sold tissue samples extracted from the severed Ghidorah head on to other parties.
* VillainBall: It doesn't occur to him that caging and abusing a pissed human-Ghidorah hybrid in such a way as he does might bite him in the ass once it inevitably can't be contained any longer. Particularly prominent considering what previously happened when Jonah tried making Ghidorah do what he wanted it to.
* VillainousBreakdown:
** He has a minor one when Monster X is escaping and he's on the wrong side of the chamber doors.
** His whole SanitySlippage can be seen as a Villainous Breakdown that's forced on him by receiving MindRape and TheCorruption, up to his death.
* VillainousLegacy: Although he's dead after [[spoiler:Chapter 13]], the Many which he created remain a threat. Also, [[https://hrodvitnon.tumblr.com/post/648508725162803200/ the author thinks]] that [[spoiler:it was from his mind specifically that Ghidorah learned through the Many about ''Literature/ParadiseLost'' and formed a particularly horrible part of its EvilPlan for Monster X]].
* VirtueIsWeakness: This seems to be his attitude, based on his thoughts about humanity overall and Vivienne's sacrifice in Antarctica.
* VoicesAreMental: [[spoiler:Vivienne recognizes his voice among the Many's psychic [[IAmLegion Legion voices]] in Chapter 13]].
* WouldHurtAChild: In a deleted scene described by the author [[https://hrodvitnon.tumblr.com/post/616668234453794816/ here]], it would've been confirmed that Jonah is fine with abducting the {{Disposable Vagrant}}s' children for [[spoiler:his aforementioned PlayingWithSyringes]].
[[/folder]]

[[folder: Dr. Mariko]]
A former Monarch operative who set Behemoth loose during the Mass Awakening, causing the deaths of her co-workers, and went into hiding.

----

* AdmiringTheAbomination: Like most of Monarch, she reveres the Titans. Though she is horrified by Monster X's BodyHorror when she first encounters it in Chapter 3.
* AffablyEvil: She draws the line at places, but she did get her co-workers killed by releasing Behemoth. [[https://archiveofourown.org/comments/252742880 The author herself seems to consider Mariko this]].
* DeadpanSnarker: She's demonstrated that Vivienne, Stanton and Russell aren't the only ones in Monarch who have such a way with words.
* EveryoneHasStandards: Despite admiring the Titans to the point of committing [[WellIntentionedExtremist Well-Intentioned Extremism]], she’s revolted from the get-go at Monster X’s initial state of painful BodyHorror, and finds it appalling how the creature (specifically Vivienne, formerly a human being) is treated by Jonah’s paramilitary.
* HeelFaceTurn: ZigZagged. It hits a nerve when Vivienne brings up the deaths of her co-workers. After she's taken into custody by Monarch, she doesn't seem resistant to whatever penalty she'll face for her criminal actions.
* HeroOfAnotherStory: A little, when she and Tejada are holed up with other survivors for days off-screen.
* {{Infodump}}: She pulls a small and rather {{justified}} one in [[https://www.fanfiction.net/s/13357907/14/Abraxas Chapter 14]], when hosting a Monarch livestream [[spoiler:which explains Monster X's true nature to the public]].
* LastSecondWordSwap: She almost calls Monster X by Vivienne's name before she catches herself and rectifies it.
* LittleNo: She gives a brief one of the third type in Chapter 3 when she recognizes Vivienne's facial structure in Monster X.
* NoNameGiven: She's only known by her first name.
* ReluctantMadScientist: Jonah recruits her because he wants an expert in Titan biology, and Mariko seems to consider their alliance to be TeethClenchedTeamwork. Watching Vivienne being tortured only increases Mariko's reluctance.
* ReportsOfMyDeathWereGreatlyExaggerated: She was presumed dead by Monarch after Behemoth's escape, and went off the grid.
* ScarsAreForever: She's somewhat disfigured from the destruction of Outpost 58, with noticeable skin grafts on her face.
* ScrewThisImOuttaHere: Alongside Tejada when it becomes clear that everyone in the mercenaries' base is in danger.
* StunnedSilence: She and Tejada react this way when Jonah shoots one of his {{Mook}}s dead trying to stop his [[spoiler:[[TestedOnHumans human testing]] on his own {{Disposable Vagrant}}s]] from being exposed.
* TeethClenchedTeamwork: From the start, she isn't enthusiastic about working with Jonah. Later, she allies with San and Vivienne in Chapter 6 though the duo neither trust nor particularly like her.
* WellIntentionedExtremist: She set Behemoth loose and caused the deaths of her co-workers because she agreed with Emma Russell that the Titans are gods that should be freed to reclaim the world.
[[/folder]]

[[folder: Tejada]]
A mercenary in Jonah's organization at the hidden outpost.

----

* AffablyEvil: Mariko comments that Tejada is an okay person despite her allegiance. Though she’s not the sensitive type, she proves to be this.
* BigWhat: She follows up on her FlatWhat with this.
* EasilyForgiven: By the time of Chapter 17, she's apparently on sociable enough terms with Dr. Stanton that they have a bet going on; despite Tejada's direct participation in Jonah's massacring of dozens of Monarch colleagues during ''King of the Monsters''.
* EvenEvilHasStandards: She's disgusted by Jonah's lack of regard for his soldiers when he refuses to get them away from the Ghidorah head, in Chapter 6.
* FlatWhat: She initially responds this way in Chapter 11, when she's first informed that [[spoiler:San's original Ghidorah-head has disappeared]].
* HeelFaceTurn: After pulling a ScrewThisImOuttaHere and being apprehended, she has no problems with spilling everything she knows about Jonah's operations and aiding the military torch-and-bury operation.
* HeroOfAnotherStory: A little bit, during the intervening time between her ScrewThisImOuttaHere and the next time we see her [[spoiler:holed up with other survivors]].
* MauveShirt: She's one of multiple mercenaries with her own lines, and [[spoiler:makes it out of the organization alive]].
* NoNameGiven: Her first name is unknown but it begins with a V.
* OCStandIn: The author confirmed [[https://hrodvitnon.tumblr.com/post/628652716177096704/ here]] that she's the shave-headed female {{Mook}} who is visible in the background in ''King of the Monsters''.
* PetTheDog: She tries in vain to go after the MookLieutenant she was friends with when he runs to his death.
* ScrewThisImOuttaHere: It was somewhat forced by a pressing situation but also influenced by the revelation about Asher's death. Nevertheless, she joins Mariko [[spoiler: in trying to get word out to Monarch]], and after being apprehended, she seems to have given up on Jonah's madness entirely.
* StunnedSilence: She's momentarily speechless when Jonah silences a {{Mook}} via gunshot due to said Mook breathing a word of [[spoiler:the Basement Club's [[TestedOnHumans human experimentation]]]].
* VillainousFriendship: With her unnamed friend whom she's rarely seen without before Chapter 7, and with Kauffman.
* VillainsOutShopping: She spends downtime with her unnamed friend playing cards in Chapter 6.
[[/folder]]

[[folder: Sergeant Travis]]
One of Jonah's henchmen, who experiences a SanitySlippage due to Ghidorah's lingering influence.

----

* AffablyEvil: Mariko comments he’s alright for a [[WesternTerrorists Western Terrorist]], and he does seem like a pretty normal guy before the crazy.
* AlasPoorVillain: Despite being a bad guy, it’s hard to not feel sorry about what happens to him.
* AndThenJohnWasAZombie: [[spoiler:He survives the Many initially overrunning the outpost, only to get assimilated by them]].
* CameBackWrong: [[spoiler:After blowing his brains out, his corpse is turned by Jonah’s Basement Club into one of the {{Artificial Zombie}}s]].
* DrivenToSuicide: [[spoiler:He kills himself after his SanitySlippage which made him act like a self-harming ReluctantPsycho escalates]].
* FateWorseThanDeath: [[spoiler:Possibly; depending on whether or not any of his consciousness is still in the zombie]].
* NoNameGiven: He's only known by his last name. His first name apparently consists of seven characters.
* OCStandIn: He's based on a minor named character from the movie {{novelization}}, and the author confirmed [[https://hrodvitnon.tumblr.com/post/628652716177096704/ here]] that he's intended to be the unnamed speaking {{Mook}} from the movie scene where Emma awakens Rodan.
* ReluctantPsycho: ZigZagged. He doesn't turn AxCrazy, but it becomes clear something's wrong inside his noggin, and he's torturously aware of it, pleading that he just wants to feel like himself again.
* SanitySlippage: Due to exposure to the Ghidorah-head; making him think he can constantly hear Ghidorah communicating with him, rendering him insomniac, eventually driving him to self-harm with his ''fingernails'', and generally increasingly turning his mind to mush [[spoiler:until he commits suicide]].
* TroubledFetalPosition: He's curled in this position after his SanitySlippage has progressed, in Chapter 7.
[[/folder]]

[[folder: Guard [=B-04=]]]
A guard assigned to monitor Monster X while it's caged, who is notably cruel towards Vivienne.

----

* AssholeVictim: For anyone who reads attentively and notices his death, there's nothing but satisfaction at Monster X killing him brutally.
* BullyingADragon: Goes out of his way to make utterly cruel taunts at Vivienne for no other reason than shits and giggles, and even ''Jonah'' gets peeved at him stepping out of line. [[AssholeVictim He pays for it]].
* CruelAndUnusualDeath: There’s nothing recognizable left when San is through with him.
* DirtyCoward: It's made fairly clear that he only dares cruelly taunt Vivienne while she and San are behind a containment field or being watched by numerous armed guards so the two-headed chimera can't get to him.
* HateSink: He manages to do this in just a few scenes, making his slow and excruciating death all the more satisfying.
* {{Jerkass}}: We've already pretty much said it above.
* KarmicDeath: Of the BullyingTheDragon variety, and it is apparently anything but quick and painless.
* MaliciousMisnaming: Calls Vivienne "Grammy" in reference to her last name at one point.
[[/folder]]

* EldritchAbomination: It's regarded as such InUniverse by the Titans. [[https://hrodvitnon.tumblr.com/post/651544161598734336/ According to the author]], it helps that the Titans have absolutely no concept of undeath or of the dead's leftover meat regaining life.

* AlternateSelf: He's a "shed skin" of Ni/Elder Brother, with Ghidorah having regenerated its right head along with a backup of Ni's mind as of Chapter 17, and [=MaNi=] seems to be even ''more'' AxCrazy than the main Ni due to the state he's in.

* AxCrazy: He's batshit crazy with a hard-on for the idea of driving Vivienne to commit mindless violence, and [[https://hrodvitnon.tumblr.com/post/648508725162803200/ the author]] comments he has a "murder boner".

* HateSink: He arguably supercedes Jonah and Guard B-04 in this department within a short time in Chapter 16, when he brutalizes and tortures Monster X with utter viciousness the likes of which could match even Ichi/Eldest Brother's cruelty, he [[spoiler:attempts to kill San in front of Vivienne (and almost succeeds), and he gleefully targets the infant Manda just to hurt Viv and San]]. [[https://hrodvitnon.tumblr.com/post/653738862095532032/ One reader]] even gave him the Fan Nickname, Grade A [=GigaBastard=] Supreme.

* KarmicDeath: He gets a RasputinianDeath at the hands of the very same Titan that he viciously tortured and hurt in a rape-like manner and whom he pulled AndYourLittleDogToo on. But more than that, Monster X finishes him off by essentially turning him into food, ''just like'' what he tried to do to San in front of Vivienne; and going out in such an anticlimactic way as VampiricDraining breaks him as he dies.

* TheReasonYouSuckSpeech: He participates in the one Ichi/Eldest Brother and San-2/Youngest Brother give San (see San's folder).

* TailSlap: He uses his tail as a brutal combative weapon.

* LaserGuidedKarma: [[spoiler:Ichi/Eldest Brother gets this in Chapter 17. After he spent so much time viciously getting into Viv and San's heads trying to inflict BreakThemByTalking, they get to turn the tables on him before killing him]].

* TheReasonYouSuckSpeech:
** When Monster X is [[spoiler:experiencing face-to-face torment from Ghidorah]] and thus re-encountering the supposedly-dead hydra's middle head alongside San-2/Youngest Brother, San gives the two heads an epic one in retort to the one he's received; in [[https://www.fanfiction.net/s/13357907/16/ Chapter 16]]:

** In Chapter 17, San-2/Youngest Brother gets a very gentle one from Monster X, exposing to San-2 how pitiful Ghidorah's {{Backstory}} really is:
---> '''San-2:''' no more little ones holding you back you don't belong with them anymore you are so different you are just like us we are all free\\
'''Vivienne:''' Are you? [...] This, what you are now? This is just another cage.\\
'''San:''' The [[spoiler:[[AbusivePrecursors ones who did this to us]]]] are long gone. We and our brothers saw to that. They exist only as noise, and we made a cage out of it.\\
'''Vivienne:''' You're still shackled by that noise.\\
[...]\\
'''San:''' For a while, you and I were the same. She and I are one because we stopped resisting it.\\
'''Vivienne:''' Man and Monster have always been connected, no matter how much one or the other may try to reject it.\\
'''San:''' You say the more we reject you, the more we suffer. It goes both ways. If you would stop opposing it and let yourself go, then maybe you could belong.
* RedemptionEqualsDeath: [[spoiler:After some TalkingTheMonsterToDeath, San-2/Youngest Brother ultimately turns on his evil brothers, helping Monster X and the benevolent Titans to destroy Ghidorah including himself]].

* TalkingTheMonsterToDeath: [[spoiler:San-2/Youngest Brother is on the receiving end from San and Vivienne when psychically conversing with them in Chapter 17. It ultimately leads to him helping the heroes to kill him and his brothers]].

* ThisCannotBe: [[spoiler:Ichi/Eldest Brother's last words end up having this meaning before Monster X cooks his head to nothing]] in Chapter 17.

* VillainousBSOD: In Chapter 17, San-2/Youngest Brother is almost catatonic after [[spoiler:having received a TalkingTheMonsterToDeath from Monster X. It leads to him turning on his brothers]].

* {{EMP}}: It's theorized by a Monarch operative in Chapter 15 that they used this to knock out [[spoiler:Castle Bravo]]'s power.

* RoomFullOfCrazy: They’ve carved several fanatical scrawlings into the walls of Jonah’s base, as revealed in Chapter 11.
* ShadowArchetype: The Many are similar to Monster X, and it's implied in Chapter 14 [[spoiler:by Ghidorah that they're closer to what Ichi/Eldest Brother wanted to transform Vivienne into than Monster X is]]. San and Vivienne's relationship is psychologically symbiotic, whereas the Many are slaves to Ghidorah with their humanity subsumed; and Vivienne remains a ProHumanTranshuman whereas the Many experience TranshumanTreachery within the HiveMind.

* WouldHarmASenior: [[spoiler:They threaten to go after Susan Graham]].
* WouldHurtAChild: Bordering on EatsBabies. They go after [[spoiler:Manda's egg (which apparently contains a fully-formed unborn hatchling)]] seeking to assimilate it, and children are among the victims they assimilate in Berezniki.

* ComicBookFantasyCasting: The author has described what Ni and Ichi's mental voices sound like [[https://hrodvitnon.tumblr.com/post/623720240777412608 here]]. She's also described what San's voice sounds like, giving one an idea of what his AlternateSelf sounds like (see San's folder).

* MindHive: [[spoiler:Ghidorah has assimilated the Many into itself to make itself mobile whilst its regeneration is incomplete. And well, most of the resulting body looks like a medieval artwork of eternal damnation]].

* PosthumousCharacter: It's dead following the battle in Boston before the fic's main time frame [[spoiler:(at first)]], but its actions have caused San and Vivienne's transformation into Monster X, and it's hinted the severed head still has some of Ghidorah's minds in it. [[spoiler:Then Ichi, Ni and San-2 start regenerating [[FromASingleCell From a Single Head]].

* StalkerWithoutACrush: It psychically haunted Vivienne for years when she was monitoring Outpost 32. [[spoiler:Ichi/Eldest Brother, Ni/Elder Brother and San's EvilDoppelganger are stalking Vivienne and San even more viciously after Monster X's creation]]. This trope is nightmarishly ZigZagged by [=MaNi=]/Elder Brother, and implicitly also by the regrown version of Ni.

* AlternateSelf: San-2/Youngest Brother, who is the result of San's original head, following his BrainUploading to Vivienne, re-forming San's personality and memories whilst it [[spoiler:regenerated the rest of Ghidorah. As a result, San-2 lacks San's CharacterDevelopment that led to his HeelFaceTurn. Vivienne is able to tell the two San's apart when the evil one speaks to her in [[https://www.fanfiction.net/s/13357907/11 Chapter 11]], as San-2's voice sounds the same as when San first fused to her]]. There's also [=MaNi=]/Elder Brother (see below).

* DeadpanSnarker: Ichi/Eldest Brother and Ni/Elder Brother have moments, particularly during [[spoiler:the VillainousBreakdown[='s=] early stages]].

* DisproportionateRetribution: Ichi/Eldest Brother attempted to grant Vivienne a FateWorseThanDeath purely because she unwittingly hit his BerserkButton by leading humans in building a "cage" around the glacier Ghidorah was frozen inside. And then there's what [[https://hrodvitnon.tumblr.com/post/636684009279291392/ the author said]] about what Ichi/Eldest Brother or Ni/Elder Brother would've done to her if it had been either of them instead of San who'd had their way with her.

* EvilCannotComprehendGood: [[spoiler:{{Subverted}} with San-2/Youngest Brother in [[https://www.fanfiction.net/s/13357907/17/ Chapter 17]]. He at first can't understand why Vivienne won't respond to him or his brothers the way she responds to Mothra and San, but after he has a lengthy psychic talk with Viv and San, he ends up making a RedemptionEqualsDeath]].

* YouDontLookLikeYou: {{Downplayed}}, but Viv and San's second form is quite distinct appearance-wise from the Toho films' original incarnation of Monster X. [[spoiler:Completely {{subveryed}} by their final form]].

* ComicBookFantasyCasting: [[https://hrodvitnon.tumblr.com/post/631248784044736512/ According to the author]], San's voice sounds like [[https://tvtropes.org/pmwiki/pmwiki.php/Characters/DragonsDogma a certain dragon]] from ''VideoGame/DragonsDogma'', particularly as his voice develops an accent with his CharacterDevelopment.

* RasputinianDeath: And boy, is it epic. [[spoiler:Ghidorah's the target of a long CombinationAttack by ''eight'' Titans working together -- major points include Ni/Elder Brother's head suffering severe PalatePropping {{Jawbreaker}}, the lots of bone-breaking and being sliced open, and Ichi/Eldest Brother's gullet getting exploded open from the inside; before Ghidorah's body is vaporized. Ichi/Eldest Brother's decapitated head gets finished off by Monster X performing their own [[https://i.imgur.com/lAslwxJ.gif Kiss of Death]] which cleaves the head in two]]. The trope gets {{lampshaded}} by Lieutenant Commander Pasternak:
--> "''Make that Rasputin worm hurt!''"

* RemovedAchillesHeel: Unlike Ghidorah who was ill-built for moving in waters, Monster X fares somewhat better due to Vivienne being able to swim with their body structure.

* BeautyIsBad: It's acknowledged in Chapter 16 as having been beautiful if wholly evil and destructive.

* BodyHorror: Once the MonsterDelay ends in Chapter 17, it's revealed that [[spoiler:Ghidorah's unwhole body, which it's incorporated the Many into]], is so horrible to behold that the entire G-Team despite themselves go pale-faced.

* PsychoactivePowers: It's revealed Ghidorah’s electrical powers work this way, relying mainly on [[ThePowerOfHate hatred]].

* EvilMakesYouUgly: San considers Ghidorah's utilization of the Many to be a new debasement, and [=MaNi=]/Elder Brother's patchwork body is shown to be gruesomely devoid of Ghidorah's BeautyIsBad.