[[folder: Ultraman Tiga]]
!! Ultraman Tiga
The last of a race of alien giants that colonized Earth thousands of years ago, Tiga and his brethren were the protectors of a prehistoric civilization until its destruction at the hands of Gatanozoa, who sealed Tiga and his kind in stone until he was rediscovered by Daigo Madoka. As the first Ultra hero with a full series since Series/UltramanEighty, Ultraman Tiga's debut marked a new era for Ultramen, set in a new universe. He quickly became one of the most popular Ultra heroes and has since made return appearances in other series, like ''Series/UltramanX'' and ''Series/UltramanOrb''.

* CriticalAnnoyance: Like most Ultramen, the Color Timer on Tiga's chest flashes red and beeps as he runs low on energy.
* DidYouJustPunchOutCthulhu: [[spoiler: The BigBad is a Franchise/CthulhuMythos EldritchAbomination named Gatanozoa, who in the Franchise/CthulhuMythos was actually Cthulhu's son. In this series he's dubbed [[NamesToRunAwayFromReallyFast The Ruler Of Darkness]]. He defeated Tiga's entire race eons ago and beats Tiga easily in their first fight. In the end, Tiga, [[CombinedEnergyAttack merged with the light of every child on Earth to become]] [[SuperMode Glitter Tiga]], overpowers Gatanozoa and completely obliterates him.]]
* HandBlast: Various energy attacks
* HenshinHero
* LightIsGood: As a being of light.
** DarkIsNotEvil: His forms in ''Final Odyssey'', most especially Tiga Dark.
* MultiformBalance: The first ''Franchise/UltraSeries'' hero with such an ability.
* ThemeMusicPowerUp


[[folder:GUTS (Global Unlimited Task Squad)]]
The defense division of The Peace Coalition (TPC).

!!Daigo Madoka
-->'''Played by:''' [[Music/{{V6}} Hiroshi Nagano]]

The bold and goodhearted protagonist. Daigo was formerly a member of TPC's transportation branch, but got a job at GUTS after he rescued General Sawai, the head of TPC, from alien abductors. He can transform into Ultraman Tiga using the Spark Lens due to the fact that he is actually a descendant of the Giants of Light.

* HalfHumanHybrid: The reason why he is able to become Ultraman Tiga is because he is both "a human and a being of light".
* TheHero: Well, he ''is'' the guy who turns into Ultraman Tiga, isn't he?
* TransformationTrinket: The Spark Lens.

!!Rena Yanase
-->'''Played by:''' Takami Yoshimoto

Daigo's love interest, Rena is the best pilot on GUTS. She is quite proficient in combat, but also has a big sweet side.

* AcePilot: She's incredibly good with planes and is often the one chosen whenever GUTS is using their fastest or strongest aircraft in the episode.
* ActionGirl: She's no [[BridgeBunnies Bridge Bunny]], unlike the female members of defense teams before her.
* TheLancer: To Daigo.
* OfficialCouple: [[spoiler:With Daigo in the post-series films.]]
* ParentalAbandonment: In episode 7, it's revealed her father ran away to the space station after promising some lipstick for her birthday.
* SecretSecretKeeper: [[spoiler: Of course, that went out the window when Tiga lost against Gatanozoa the first time.]]

!!Megumi Iruma
-->'''Played by:''' Mio Takagi

The captain of GUTS. Captain Iruma delivers orders from the safety of the base, but maintains an excellent relationship with her subordinates.

* TheCaptain: Of GUTS. Notable for being the first female leader in the Ultra Series.
* SupportingLeader: She rarely comes out on the field, usually ordering from base while Munakata leads the rest on the frontlines.
* TeamMom: Whereas most other team leaders are AFatherToHisMen.

!!Seiichi Munakata
-->'''Played by:''' Akitoshi Ohtaki

Iruma's second-in-command. Commander Munkata leads the team on the front lines with a level-headed attitude.

* GuyInBack: He gives commands while sitting at the back of the jet.
* NumberTwo: To Iruma.
* TheTeetotaler: Orders milk at the bar, even when Iruma's buying! This is because his actor happens to also be a teetotaler.

!!Masami Horii
-->'''Played by:''' Yukio Masuda

A pudgy but brilliant scientist who makes all sorts of inventions to help GUTS against monsters and aliens.

* TheComicallySerious: Has his moments.
* GadgeteerGenius: He makes all sorts of gadgets against kaiju and aliens. One of his most useful is a tracking device that has helped out GUTS quite a few times against the MonsterOfTheWeek.
* KansaiRegionalAccent: Speaks with one.
* TheSmartGuy: Shared with Yazumi.

!!Tetsuo Shinjoh
-->'''Played by:''' Shigeki Kagemaru

The toughest member of the GUTS team, Shinjoh is a daring pilot and marksman. He has a younger sister named Mayumi who works as a nurse for TPC.

* BigBrotherInstinct: Although he sometimes seems tiresome of his sister's worrying, he is quite protective of her and tries his best to keep her happy.
* TheBigGuy: Plays this role in the team.

!!Jun Yazumi
-->'''Played by:''' Yoichi Furuya

The youngest member of GUTS, Yazumi is a computer genius and the team analyst, using a search engine he developed himself called Akashic Records. He is treated as a younger brother by the rest of the team, especially Rena.

* MissionControl: The first male example in the franchise.
* NonActionGuy: He doesn't normally get to come out on the field and usually just analyzes the monster from the safety of headquarters with Iruma.
* TeenGenius: He's only eighteen, but is the smartest guy on the team asides Horii. He created his own search engine and programmed GUTS' nigh-invincible firewalls.


[[folder:Monsters and Aliens]]
!Golza / Fire Golza

-->'''First Appearance:''' The One who Inherits the Light
A monster from Earth's past that was reawakened in Mongolia during modern times alongside Melba to locate and destroy the petrified forms of Ultraman Tiga and his brethren. It later returned as Fire Golza after abosrbing magma from a dormant volcano to increase its power. Being the very first kaiju of the Heisei Ultra Series, Golza is one of the most popular monsters of the franchise and has frequently returned in later entries in the series. Starting with ''Series/UltraGalaxyMegaMonsterBattle'', he was officially added to the main Showa continuity.

* ArtEvolution: As Fire Golza, the white spots on his body are now red and there are several vein-like growths covering his skin.
* BreakoutVillain: As the most popular ''Ultraman Tiga'' kaiju, Golza is one of the few to have regular reappearances and the opportunity to battle other Ultramen.
* EverythingsBetterWithDinosaurs: Stated to be a "Super Ancient Monster" and greatly resembles one.
* TheJuggernaut: Especially noticeable in ''Ultra Galaxy'', but even in its original appearance, Fire Golza was pretty damn durable, completely ignoring most of Tiga's punches and beam attacks.
* MagmaMan: Golza becomes Fire Golza by absorbing lava. No word about if Melba can do similar things.
* MightyGlacier: Slow but brutish, in comparison to the more agile but easily destroyed Melba. Moreso as Fire Golza naturally.
* PlayingWithFire: As Fire Golza, its head laser is replaced with fireballs.
* PrehistoricMonster: Along with Melba.
* PurpleIsPowerful: Is able to shoot an ultrasonic ray of purple energy from his forehead.
* SignatureRoar: [[https://www.youtube.com/watch?v=WlwuBvwpuqo A loud guttural growl followed by a high-pitched screech.]]
* StarterVillain: Marking the beginning of a new era for the Ultra Series.
* TookALevelInBadass: As Fire Golza, he absorbed so much heat it gave him a new set of fiery powers, [[spoiler:and was only killed once and for all when Tiga hurled him into an erupting volcano]].
* TunnelKing: Burrows about rapidly, travelling from Mongolia to Japan in a matter of hours.
* VolcanicVeins: As Fire Golza.


-->'''First Appearance:''' The One who Inherits the Light
The second of two ancient monsters (this time on Easter Island) that reappeared in the present day to destroy Ultraman Tiga.

* EyeBeams: It's primary ability.
* FragileSpeedster: In comparison to Golza's MightyGlacier.
* GiantFlyer: It's a kaiju, and all that.
* OurDragonsAreDifferent: It's title is "Super Ancient Dragon" and it certainly resembles one with pterosaur features.
* PrehistoricMonster: Both Melba and Golza are creatures from ancient times.
* StarterVillain: Along with Golza, [[spoiler:although Melba didn't escape the battle.]]


-->'''First Appearance:''' Legend of the Stone
A pair of legendary subterranean monsters (implied to be mates) that terrorized miners with their petrifying breath.

* EatDirtCheap: They consume minerals, but when miners dug up all their food supply, they started attacking them.
* ShockAndAwe: Both monsters can channel electricity through their bodies, which one of them uses to stop Tiga from trying to rip its horns out.
* TakenForGranite: Their BreathWeapon encases victims in stone.
* TunnelKing: Both monsters were proficient burrowers.


-->'''First Appearance:''' The Devil's Prophecy
A mysterious but malevolent race of humanoids that have lived on Earth far longer than humankind. Two appear in the series, with the first spreading prophecies of purifying flame and the second forming a cult in order to call forth an army of its kind.

* BackForTheFinale: [[spoiler:A pair of Kyrieloids taunt Daigo while Tiga is petrified by Gatanozoa, mocking how humanity should have become subjugated by them if they wanted to be saved and adding that they have dedcided to leave the doomed planet.]]
* DeadPersonImpersonation: The first Kyrieloid takes the form of the late Mitsuo Itahashi to spread its prophecies.
* DemonicPossession: They perform this one a TV show host to announce their coming.
* EyelessFace: Unless that glowing organ on the forehead is supposed to be an eye.
* HumanoidAbomination: A race of impossibly ancient demon-like beings that see themselves as the prophets of the human race and seek to "purify" them.
* MindOverMatter: Possesses telekinetic powers.
* MultiformBalance: The second Kyrieloid possesses the Power Type and Sky Type morphing abilities of Ultraman Tiga
* OurDemonsAreDifferent: The series frequently compares them to devils and they are capable of many demon-associated abilities like possessing people and controlling fire.
* PlayingWithFire: Able to channel the heat from the Earth's core into eruptions of flame capable of destroying a skyscraper.
* PokemonSpeak: Kyrieloid only "speaks" by saying "kiri" in repetition.
* SpellMyNameWithAnS: Has a variety of other names include Kilie, Kilalien, and Kilielu.
* {{Ultraterrestrials}}: Implied.


-->'''First Appearance:''' Sayonara, Earth
An energy being that absorbed the spaceship Jupiter 5 (as well as the astronauts inside), transforming it into a metallic monster that feeds off energy.

* TheAssimilator: Absorbs matter into its naturally incorporeal form to become a monster.
* AssimilationBackfire: [[spoiler:GUTS is able to defeat it by communicating with the astronauts, paralyzing Ligatron as the human minds rebel against the cyborg's programming.]]
* BladeBelowTheShoulder: Possesses vicious blades for hands.
* CyberCyclops: Has a single yellow eye.
* EnergyAbsorption: Ligatron consumes energy to fuel its spaceship body.
* EnergyBeing: Its true form is an entity composed of bright light.


-->'''First Appearance:''' The Day the Monster Came Out
A strange corpse-like monster that washed up on shore one day.

* BreathWeapon: Breathes toxic gas.
* HealingFactor: Constantly regenerates itself, even when GUTS ''melted'' its skin and flesh off!
* OurZombiesAreDifferent: Sealizar was first discovered as a corpse.


-->'''First Appearance:''' Second Contact
Originally a race of tiny aerial creatures nicknamed "Critters", but was mutated by aerial pollution into a singular entity with an appetite for humans. A second one appears later on when the Critters are disturbed by the electromagnetic waves emitted by a solar power plant. The Critters eventually leave Earth when they get fed up with human interference.

* BlueAndOrangeMorality: GUTS discovers this when they attempt to communicate with it, as its understanding of the concept of friendship is ''very'' different from humans.
* BreathWeapon: Spits purple orbs of explosive energy.
* PsychopathicManchild: Although it's a kaiju, Gazote gives off these vibes due to the young voice GUTS hears from it in their translator, inability to comprehend human ideas of friendship, and the fact that its roar is made from modified baby cries.
* SpellMyNameWithAnS: Also spelled "Gazort" or "Gazoto".
* ToServeMan: Likes to eat humans, or as it calls them, "friends".
* WormThatWalks: It's a mass of tiny flying creatures native to the ionosphere.

!Alien Regulan

-->'''First Appearance:''' The Man who Fell to Earth
An alien who landed on Earth after his spaceship was destroyed when it seemed to be on a collision course with a TPC space station. It kidnaps Rena's father (the chief scientist on the station) in revenge for the destruction of its ship.

* DirtyCoward: Abandoned its friends and family aboard a spaceship that was about to be destroyed when an assault on TPC's space station went south.
* FauxAffablyEvil: Plays victim to deceive GUTS and TPC during its botched attacked on their space station.
* PlayingWithFire: Can shoot fireballs from its hands.
* StarfishAliens: Although it has two limbs and two legs, its body shape is very abstract.


-->'''First Appearance:''' Halloween Night
An evil witch from another dimension that comes to Earth every Halloween to kidnap children and consume their dreams.

* AdultFear: Gives out drugged candy on Halloween and kidnaps the children who take it.
* AllHallowsEve: Not only does Giranbo only appear on Halloween night, it takes the form of an old lady in a witch costume and transports kidnapped children to its home dimension in a vehicle resembling a giant jack-o-lantern!
* DoppelgangerSpin: Uses this to try confuse Tiga during the fight.
* DreamEater: Consumes the dreams of children, turning them into emotionless zombies.
* HumanoidAbomination: A monster witch from a dimension called the Graveyard of Dreams, where it brings the children it's kidnapped to feed on their dreams and turn them into joyless pawns.
* MissingReflection: In human form, Giranbo casts no reflection, which Daigo notices and motivates him to track the witch.
* SpellMyNameWithAnS: Also called Gi'''l'''anbo.
* TeleportSpam: Another trick it tries on Tiga.


-->'''First Appearance:''' The Girl who Waits for a Monster
A strange monster from outer space that came to Earth when called forth by a mysterious girl named Saki.

* AttackReflector: Makeena's bodily appendages are highly reflective, rendering beam attacks useless against it, especially when it enters its shell form.
* NonMaliciousMonster: The first Tiga kaiju that had no intention of destroying Earth. [[spoiler:It was an escort for Saki to bring her back to her homeworld.]]


-->'''First Appearance:''' The Closed Amusement Park
An alien monster that came to Earth in prehistoric times and awoke under an amusement park, where it used its barrier-creating abilities and trap the visitors and capture children to feed its unborn young. A second one later appears to battle Silvergon.

* BarrierWarrior: Creates an impassable wall of energy with its horn.
* {{Expy}} of [[Series/ReturnOfUltraman Gudon]] in appearance.
* HornAttack: After Tiga destroys its whips, Gagi begins to rely on its horn, firing beams and trying to gore Tiga with it. Of course, Tiga just karate chops it off.
* MonsterIsAMommy: The reason it was attacking humans was to prepare for the hatching of its eggs.
* WhipItGood: Possesses retractable whip-like middle fingers.
* TheWorfEffect: In its reappearance against Silvergon, where Silvergon literally smashes its way through Gagi's barrier to demonstrate its herculean strength to viewers.
* WouldHurtAChild: Targeted children because the growth hormones in their bodies were particularly nutritious for its children.


-->'''First Appearance:''' Requiem to Darkness
The result of when Horii's friend Ryosuke Sanada of the Stellar Development Department exposed himself to alien cells, giving him the ability to metamorphose into a kaiju.

* AlasPoorVillain: [[spoiler:Horii and Ryosuke's girlfriend Sayaka when they realize Ryosuke's reasons for becoming Evolu.]]
* EnergyAbsorption: Evolu must sustain himself by consuming electricity, or else he dies. [[spoiler:So Ultraman Tiga defeats him by simply making sure Evolu cannot absorb electricity and trying to outlast him until he eventually runs out of energy and dies as Ryosuke.]]
* ShockAndAwe: Can shoot lightning bolts from his hands.
* SuperpoweredEvilSide: Ryosuke lived in a constant state of torment between remaining human and metamorphosing into Evolu due to this.
* TragicMonster: Ryosuke only transformed himself into Evolu because, despite his genius, he was so insecure about his human fallibility that he sought to become the perfect lifeform.
* WhipItGood: Has retractable whips in his palms, which can also channel electricity.


-->'''First Appearance:''' S.O.S. from the Deep Blue Sea
A sea monster mutated by radioactivity from underground nuclear testing leaked into the ocean by earthquakes.

* FightingClown: Despite being a destructive colossus, Leilons is pretty playful and acts rather goofily during the fight, even laughing at Tiga whenever he gets hurt.
* MakingASplash: Can spray high pressure water and explosive bubbles from its mouth.
* NuclearNasty: Was originally some kind of sea creature (possibly a dolphin), but turned into a kaiju by nuclear waste.
* SeaMonster: Based on dolphins in appearance and attitude.

!Alien Raybeak

-->'''First Appearance:''' Human Collecting
A race of bird-like aliens that captured humans with shrinking guns in order to bring them back to their homeworld as slaves.

* BirdPeople: The 4Kids dub says they originate from the Crow Nebula.
* CreepyCrows: Sinister crow-faced aliens.
* EyeBeams: The head raybeak was shown using these to battle Ultraman Tiga.
* GlowingEyesOfDoom: The bright, orangey eyes of the subordinate Raybeaks.
* RedEyesTakeWarning: The Raybeak leader.
* ShrinkRay: Their weapon of choice.

!Alien Muzan

-->'''First Appearance:''' The Released Target
An alien hunter who sends his targets Rucia and Zara to Earth to be hunted at his leisure.

* EvilLaugh: The only sounds that ever come from his mouth are grunting laughs.
* HornAttack: Has a single tiny horn of his head that shoots lasers, both in normal and kaiju form.
* HuntingTheMostDangerousGame: His goal.
* InsectoidAliens: Somewhat resembles a humanoid beetle, especially in kaiju form.
* OneWingedAngel: When GUTS attacks him, he transforms himself into a kaiju-sized version of himself that possesses the ability to switch between a bipedal and quadrupedal mode.

!Rucia & Zara

-->'''First Appearance:''' The Released Target
Two human-like aliens (Rucia is the female and Zara is the male) sent to Earth by Alien Muzan to be hunted for sport.

* AlienBlood: Both have green blood.
* HumanAliens: Specifically slaves of Alien Muzan released to be hunted for sport.
* TheQuietOne: Neither of them say very much due to the fact that they're incapable of speaking Japanese/English.

!Sakuna Oni

-->'''First Appearance:''' The Demon's Return
A powerful sword-wielding oni defeated long ago by the samurai Kagetatsu, who then split the body into pieces. It came back to life after thieves stole Kagetatsu's relics from the shrine meant to seal it away.

* BreathWeapon: Two actually.
** BlowYouAway: Its back face breathes powerful gusts of wind, capable of knocking even Ultraman Tiga off his feet.
** PlayingWithFire: The front face shoots jets fire from its maw.
* {{Cyclops}}: Has one eye on both of its faces.
* OffWithHisHead: Has the notable honour of being the last Ultra monster in the franchise to get decapitated. [[spoiler:However, it soon turns out the head has a life of its own.]]
* {{Oni}}: A legendary demon sealed away centuries ago by a great warrior.
* SealedEvilInACan: The power of Kagetatsu's sword was what prevent his body from reattaching itself together until it was stolen.
* TwoFaced: Sakuna Oni usually hides the second face underneath its hair.

!Alien Standel Abolubas and Redle

-->'''First Appearance:''' Red and Blue's Battle
Two aliens of warring factions from a planet divided between day (Redle's side) and night (Abolubas' side) who are weakened by their respective opposites. Abolubas (shown above) came to Earth to capture potential soldiers who could fight in both light and dark, while Redle came to stop him, hiding out in the home of a kindly old lady.

* AchillesHeel: Abolubas is weakened by daylight while Redle is weakened by the darkness of the night.
* CastingAShadow / LightEmUp: Once again, Abolubas and Redle respectively.
* DarkIsEvil / LightIsGood: Abolubas and Redle respectively.
* RedOniBlueOni: Abolubas is the blue while Standel is the red. In fact, their whole ''planet'' is literally divided by such.
* ShockAndAwe / PlayingWithFire: Abolubas and Redle respectively.
* {{Telepathy}}: Both communicate to the characters through this manner, but otherwise make various whirring noises.
* WeakenedByTheLight: Abolubas, [[spoiler:which is how Tiga kills him]].

!Gobunyu Vaha/Giga

-->'''First Appearance:''' GUTS into Space Part 1
Robotic soldiers produced by a mechanical space fortress sent by mysterious forces (implied to be the Kyrieloids) to destroy GUTS' newest technology, a lightspeed engine called the Maxima Overdrive.

* ActionBomb: The Gobunyu Giga sets itself to self-destruct in an attempt to destroy Tiga and the GUTS base in one go.
* CombiningMecha: Thousands of Gobunyu Vaha can merge to form Gobunyu Giga.
* HumongousMecha: As Gobunyu Giga.
* MeaningfulName: Named after Goibniu, the ancient Irish god of metalwork and patron of smiths.
* MechanicalLifeforms: Yazumi discovers this when he gets his hands on a piece of a Gobunyu, as the robots are not powered by anything, making their insides hollow.

! Gobunyu Ogma

-->'''First Appearance:''' GUTS into Space Part 2
A Gobunyu variant created by the mechanical fortress to defend it from invaders.

* GiantSpaceFleaFromNowhere: Appears completely unexpectedly without foreshadowing when GUTS attempts to escape the fortress, if only to fill the monster fight quota.
* HumongousMecha: Formed directly from the substance of the space fortress itself.
* MeaningfulName: Ogma was a hero in Irish myth.
* ShockAndAwe: Can fire lightning bolts from its hands.


-->'''First Appearance:''' Deban's Turn
An evil alien that seeks to destroy the world by using its electromagnetic mind-destroying waves.

* {{Archenemy}}: Of Deban.
* HatePlague: Enomena emits electromagnetic waves that drive humans into violent insanity. To make matters worse, the waves also slowly destroy the human brain, eventually killing the victims unless Deban's calming waves save them.


-->'''First Appearance:''' Deban's Turn
A friendly alien of the same species as Enomena that lives on Earth as a performer for a small circus troupe. He releases energy waves that nullify those of Enomena, making him a target of Enomena's attacks.

* AliensAmongUs: Nobody notices though because the people he's living with wear their weird costumes wherever they go.
* DisneyDeath: [[spoiler:After seemingly sacrificing the last of his power to save Ultraman Tiga from Enomena's mind-destroying waves. He gets to keep performing with the circus guys as well!]]
* WhatMeasureIsANonHuman: The circus troupe he hung out with discovered Deban was a monster pretty early, but accepted him quickly and became good friends. When GUTS scientists ask if they can perform experiments on Deban's powers, the leader is outraged, and he initially refuses to let GUTS use Deban's powers against Enomena because it seems to him they're treating his friend as a weapon.


-->'''First Appearance:''' A Fog is Coming
Alien parasites produced from a strange meteorite to feed it life energy from parasitized victims. The parasites can merge into a kaiju form that draws power from the meteor's life forces in turn.

* BreathWeapon: Magnia breathes electrifying fog from the cluster of tentacles on its face.
* MookMaker: The meteor Magnia is spawned from.
* OminousFog: The Magnia parasites produce a fog that cloaks their presence.
* PuppeteerParasite: The parasites turn their victims into zombies to guide them towards the meteor as sacrifices
* ShoutOut: To Stephen King's ''Literature/TheMist''. The book is even mentioned by a character in the episode (although not by name).
* WeaksauceWeakness: The parasites can be destroyed with water.
* WormThatWalks: Magnia's kaiju form is a merging of the parasites to defend the meteor.

!Dinosauroids Adam and Eve

-->'''First Appearance:''' Planet of the Dinosaurs
A pair of ''Troodon'' dinosaurs[[note]]identified in the episode as ''Stenonychosaurus'' due to ScienceMarchesOn[[/note]] genetically modified by the Naga into humanoid servants to help them in their conquest of Earth. They are able to control the Weaponizers.

* EverythingsBetterWithDinosaurs: They're based off an old theory that the small but highly intelligent dinosaur ''Troodon'' could have eventually evolved into a human-like form.
* RedOniBlueOni: The calmer and questioning Eve is the blue to the red Adam, who aggressively and loyally serves the Naga [[spoiler:until he realizes he's been deceived.]]
* TheReptilians: Not actually, but they strongly resemble the part, complete with the ability to disguise themselves as humans.
* UnwittingPawn: [[spoiler:The Dinosauroids believe that the Naga will let them inherit the Earth in the aliens' second conquest. The truth is the Naga really couldn't care less for Adam and Eve, seeing them only as tools to control the Weaponizers.]]

!Alien Naga
-->'''First Appearance:''' Planet of the Dinosaurs
A race of evil aliens that conquered the Earth during the late Cretaceous period. They created the Dinosauroids and Weaponziers as minions to assist them in retaking Earth in the present.

* AGodIAm: The whole race believe themselves as gods, which isn't too far of a stretch considering their power over creating life.
* HoistByHisOwnPetard: [[spoiler:Tiga destroys their spaceship by hurling the Weaponizers' neutron bombs at their spaceship.]]
* InvisibleAliens: The Naga never appear physically, only their voices are heard and spaceship is seen.
* SufficientlyAdvancedAlien: The Dinosauroids refer to them as being like gods and the Naga certainly view themselves as such.

!Weaponizers 1 and 2

-->'''First Appearance:''' Planet of the Dinosaurs
''Tarbosaurus'' dinosaurs transformed into cyborg weapons by the Naga and hidden away for millions of years until it was time to conquer Earth again.

* ActionBomb: The Naga outfitted them with neutron bombs for this. Worse still, they can merge their bombs together for an explosion capable of annihilating all life on Earth.
* {{Cyborg}}: Obviously.
* EverythingsBetterWithDinosaurs: Cyborg dinosaurs created by aliens!
* MoreDakka: They have machine guns built into their chests.
* TyrannosaurusRex: Close. They're based on ''Tarbosaurus'', a very close relative of T-Rex from Asia.


-->'''First Appearance:''' Go! Monster Expedition Team!
An upside-down monster that feeds on exhaust fumes from cars, using them to produce its own poison smog capable of killing large areas of forest.

* {{Expy}}: Of Twin Tail from ''Series/ReturnOfUltraman'', in terms of design.
* HollywoodAcid: Litomalus can spew explosive acid from its midsection that dissolves steel and kills vegetation.
* PoisonousPerson: Constantly secretes a toxic gas made from the vehicle exhaust it consumes that kills all plants in its surroundings.
* WalkingWasteland: Once again, its presence kills all vegetation around it due to its poisons.
* WhipItGood: Like Twin Tail, its primary weapons are the two whip tails on its top. Weirdly, it also uses them to pole vault during the fight.


-->'''First Appearance:''' The Rainbow Realm of Monsters
An immensely strong monster that dwells in a Bermuda Triangle-like dimension called the Rainbow Underworld, attacking any drivers unlucky enough to disappear into the realm through its rainbow gate. Silvergon is one of the few kaiju from ''Ultraman Tiga'' that has appeared outside its debut series, but usually as a more powerful version of itself called King Silvergon.

* AchillesHeel: Silvergon has extremely poor eyesight, only able to see moving objects. Tiga was able to take advantage of this once he found out by simply attacking Silvergon whenever it wasn't looking.
* BreakoutVillain: Though he doesn't recur as often as Golza, Silvergon is one of three Tiga kaiju to appear in other series.
* BreathWeapon: Breathes blue fireballs in later incarnations.
* DimensionLord: Of the Rainbow Underworld, which is entered through the arches of a rainbow. Killing Silvergon ceases the realm's existence for easy escape though.
* DumbMuscle: Despite its ridiculous strength, Silvergon is easily fooled, and at one point in the fight, attempts to imitate Tiga by trying to perform a Zepellion Beam and transform into Power Mode.
* EverythingsBetterWithDinosaurs: Ram-horned, ridiculously strong dinosaurs with poor eyesight in this case.
* EverythingsBetterWithRainbows: Not in this case. The rainbow is actually a gateway to Silvergon's realm. Interestingly, the rainbow gate has the colours in reverse, with violet on the top and red on the bottom.
* {{Expy}}: Of [[Series/{{Ultraman}} Red King]]. The production team even liked to call it "Heisei Red King".
* TheJuggernaut: The Zepellion Beam barely even fazed this guy!
* SuperStrength: [[UpToEleven Even by kaiju standards]]. Silvergon is so strong that it can ''punch holes through a force field with its bare hands''. Even Tiga in Power Mode had a tough time with him.


-->'''First Appearance:''' I Saw Obiko!
A youkai that thrives in darkness, Obiko disguises himself as a noodle vendor, scaring townspeople with his magical shadow.

* AlasPoorVillain: GUTS feels pretty bad for him when [[spoiler:they realize Obiko wasn't evil, just unable to let go of the past because he was afraid of being forgotten by his ancestral home.]]
* BreathWeapon: He and his magic shadow can spit fire.
* CastingAShadow: Obiko can only live in darkness, so he comes out at night to cause mischief. He also has a living mass of shadow accompanying him that assists in his scares.
* NonMaliciousMonster: Obiko is merely a mischievous monster [[spoiler:who simply just misses the older days when the town he terrorized was just a quiet village without any streetlights.]]
* TeleportSpam: Can teleport between places of darkness, which he uses to frustrate GUTS when they're chasing him around town.
* {{Youkai}}: Not based on any real examples, but is definitely meant to be one.


-->'''First Appearance:''' One Vanishing Moment
A monster that was awoken by radio waves emitted by GUTS during the operation to destroy the Critters.

* BigCreepyCrawlies: Vaguely resembles a stag beetle.
* BladeBelowTheShoulder: Possesses blades for arms.
* ShockAndAwe: Shoots lightning from its horns.

!Alien Natarn

-->'''First Appearance:''' A Memory of Blue Skies
An evil alien that comes to Earth in pursuit of two good alien siblings that have taken refuge in human hosts -- Shinjoh and a singer named Maya Cruz.

* {{Archenemy}}: Of the unnamed aliens that possess Shinjoh and Maya.
* CurbStompBattle: Natarn's battle with Tiga lasts less than a minute and he doesn't even land a single hit on the hero! However, the episode focuses more on the unseen aliens in the bodies of Maya and Shinjoh, so really Alien Natarn was only there to fill the weekly fight quota.
* DemonicPossession: Like the benevolent but never-seen aliens he's pursuing, Natarn possesses the human he encounters in order to sneak around on Earth.
* VaderBreath: His "roar".

!King Molerat

-->'''First Appearance:''' Monster Zoo
A mole mutated into a nocturnal kaiju by underground nuclear waste.

* NonMaliciousMonster: Unlike many kaiju, King Molerat is simply just an oversized animal -- it doesn't want to destroy cities, only to do its own thing. It's for this reason that Rena opposes killing the creature [[spoiler:and Tiga obliges to her pleas, turning the creature into a small and harmless form.]]
* ShockAndAwe: Shoots lightning bolts from its ears.
* WeakenedByTheLight: Being a mutated mole, King Molerat can't abide sunlight and enters a drowsy state. However, moonlight sees it become an active predator.


-->'''First Appearance:''' GUTS Base Under Attack
An artificial lifeform from the planet of the same name, Bizaamo's purpose was to increase oxygen levels in the atmosphere. It seeks only to evolve and multiply.

* BellyMouth: In kaiju form.
* BlobMonster: Its normal form is a pinkish blobby creature. It turns into the form above by consuming enough electricity.
* EnergyAbsorption: Consumes electricity in order to grow in strength and multiply.
* LackOfEmpathy: Despite its intelligence, Bizaamo ultimately reveals itself as bereft of compassion, for it cares only about its need to multiply and evolve, which is [[spoiler:why it destroyed its creators' homeworld as it developed and attacked Horii when he tried to befriend it. However, GUTS feels pity after Tiga kills it because of how such an intelligent being lacked compassion for others, preventing it from using its powers for good or enjoying life in general.]]
* OurMonstersAreWeird: The name sorta gives it away, but just look at that thing!
* ShockAndAwe: The blob form has the ability to shoot lightning bolts, but the kaiju form can also create an electrical force field, shock opponents on contact, and spit lightning orbs from its BellyMouth.
* {{Technopath}}: Bizaamo can take over technology in its blob form, which it uses to feed off the device's electricity. If it takes over a device with communication (like Horii's laptop), it can speak through them.


-->'''First Appearance:''' Zelda Point Defense
The beloved pet cockatiel of Dr. Masahiko Nezu and his daughter Asami. Dr. Nezu had discovered a terrible chemical dubbed Zelda Gas, of which a single flask has the explosive power of a hydrogen bomb -- and one misplaced flask killed Asami when it blew up their home. Dr. Nezu (on a business trip when it happened) would grieve for the rest of his life, while Shiela was mutated into a kaiju by the chemical explosion. Now, Shiela seeks to destroy the last of the Zelda gas, which Dr. Nezu had hidden away at Zelda Point.

* BodyHorror: Most of Shiela's skin and flesh is seared off, giving it a vaguely skeletal appearance.
* BreathWeapon: Breathes an orange beam of explosive energy. [[spoiler:It also breathes a TractorBeam, which it uses to safely take the Zelda gas away.]]
* {{Expy}}: Of Hydra from the original ''Series/{{Ultraman}}'', another bird kaiju with a vengeful and tragic connection to a deceased child.
* EyeScream: GUTS blows out its left eye at the beginning of the episode.
* GiantFlyer: Like all bird kaiju.
* NonMaliciousMonster: Shiela's goal [[spoiler:was to help Dr. Nezu get rid of the Zelda gas, so it could never be used to hurt people again.]]
* TragicMonster: And how! Shiela is just as haunted by the death of Asami as Dr. Nezu, so it seeks to destroy the Zelda gas to avenge the death of its owner.


-->'''First Appearance:''' Vampire City
A bat-like monster from South America that infects humans with a virus that turns them into vampires. It came to Japan after it captured a journalist from Tokyo who came to investigate the rumors in order to spread its virus further.

* BatOutOfHell: A gigantic bat-like monster that creates vampires and is worshipped by them as a god.
* BlowYouAway: Uses its wings to create huge gusts of wind. When Tiga attempts to intensify the light from his colour timer to destroy Kyuranos (like he did with Abolubas), Kyuranos uses it to blow shipping containers into his face and break Tiga's concentration.
* CastingAShadow / EvilIsNotWellLit: Kyuranos can create darkness in order to appear in daytime, which it does to battle Tiga.
* MindOverMatter: Kyuranos uses telekinesis to send a dazed Ultraman Tiga tumbling about after draining a good deal of colour timer energy with its bite.
* OurVampiresAreDifferent: Both Kyuranos and the vampires it creates are harmed by sunlight. The vampires also possess superhuman strength and agility while Kyuranos hide in a pocket dimension disguised as a coffin during daytime.
* RedEyesTakeWarning: Although GUTS [[EyeScream blows them out]] at the end of the battle.


-->'''First Appearance:''' To the Southern Limit
A living weapon created by mysterious aliens to attack a UN meeting at the Coreomos Islands. It spawns small Deshimonias to hold the gathered official hostage.

* MookMaker: Spawns tiny versions of itself to attack humans.
* OrganicTechnology: [[spoiler:Of Alien Deshimo.]] That blue thing in the center of its mass? That's its heart.
* OurMonstersAreWeird: Not surprising, given its design was inspired by Bullton from the original ''Series/{{Ultraman}}''. Just look at it!
* SpinAttack: Deshimonia can spin itself rapidly to create explosions around it.

!Alien Deshimo

-->'''First Appearance:''' The Sleeping Beauty
A mysterious alien discovered by GUTS' predecessors in 1968. It was dubbed "Sleeping Beauty" and taken in for study, but none realized the the deceased alien was more than it seemed.

* AstralProjection: The sleeping alien uses this ability to torment Rena before possessing her.
* DemonicPossession: Possesses Rena to carry out its plans for Earth and torment Daigo.
* TheGrays: Meant to resemble them.
* TheManBehindTheMan: [[spoiler:Although they don't appear in the Deshimonia episode, the alien is the monster's creator. It even uses a small Deshimonia as a spaceship.]]
* NotQuiteDead: GUTS originally founds its corpse in 1968 after it attacked their old base. However, the alien had really just entered a conscious state of hibernation so it could plan in secret.


-->'''First Appearance:''' The Sleeping Beauty
A cyborg dragon-like monster created by Alien Deshimo and hidden in the Kunlun Mountains of Tibet until the alien's plans were initiated.

* BreathWeapon: Breathes a poisonous gas meant to transform the atmosphere into Alien Deshimo's liking,
* {{Cyborg}}: Although it looks totally robotic, GUTS manages to pick up a life signal from it.
* InstantAwesomeJustAddDragons: ''Cyborg'' dragons!


-->'''First Appearance:''' The Time-Transcending Smile
A formidable monster that possesses the ability to warp time, transporting a girl from 1915 named Teri Tezuka to modern Japan. Like Silvergon, Goldras has appeared in a number of other series, but as King Goldras, which lacks the time powers in favour of being even more powerful.

* AchillesHeel: Despite Goldras' arsenal of dangerous abilities that gave even Tiga a tough time, all of them are concentrated in the monster's horns, so destroying its horns renders it totally powerless.
* BarrierWarrior: Able to project a golden force field to deflect attacks.
* BlindedByTheLight: Goldras can produce blinding flashes of light from its horns.
* BreakoutVillain: Not to the extent of Golza, although Goldra's often paired up with Silvergon in reappearances due to ThemeNaming.
* EverythingsBetterWithDinosaurs: Time-warping dinosaurs!
* ShockAndAwe: Can shoot lightning from its horns. Its time storms also warp victims through time by hitting them with lightning bolts.
* TimeMaster: Goldras' time storms, dense clouds of magnetic energy that transport humans, animals, and objects through time. It's implied that the time storms are behind every mysterious disappearance in history, such as the ships and planes of the Bermuda Triangle.

!Alien Manon

-->'''First Appearance:''' Flower
A pair of kabuki-based aliens sent out as scouts for an invasion force from the Riskaut Nebula. They come to Japan during ''[[CherryBlossoms hanami]]'', disguising themselves as a mother and daughter to capture Captain Iruma.

* EnergyWeapon: Their preferred weapons are quarterstaffs made of energy.
* FlowerMotifs: CherryBlossoms. The aliens show a particular fondness for them and attack Earth during their flowering period.
* FusionDance: The two aliens merge themselves into a giant for the battle with Ultraman Tiga.
* KabukiSounds: Their audio cue, as you can tell from their mask-like faces.
* PlayingWithFire: The Manon can shoot fireballs from their hands.


-->'''First Appearance:''' The Mirage of a Monster
A monster that creates illusions of itself that it can swap places with.

* BlindedByTheLight: Faldon can release a powerful wave of light from its back. While it can't hurt people, it was strong enough that the blinded GUTS almost crashed their planes into each other.
* DoppelgangerSpin: Faldon can create illusory duplicates of itself that, although unable to be harmed or harm others, can swap places with the original.


-->'''First Appearance:''' Dear Mr. Ultraman
A heavily armoured monster from ancient times that proved to be a challenge for GUTS, especially since Daigo had been challenged by an envious man with ESP powers named Masakiyo Kirino to not become Ultraman Tiga or else have his secret identity revealed.

* AchillesHeel: [[spoiler:Masakiyo reveals at the last minute that its only weak spot is its throat, allowing Tiga to shoot his Zepellion Ray there and kill Galra instantly.]]
* TheJuggernaut: Galra ''completely'' shrugged off every single attack from both GUTS and Ultraman Tiga. [[spoiler:If it wasn't for the timely reveal of its weakness by Masakiyo, they would have certainly lost.]]
* PlayingWithFire: Can shoot a heat beam from its forehead.
* PrehistoricMonster: Yazumi describes it as being of the same stock as Golza and Melba.
* SpellMyNameWithAnS: Also translated as Garula.
* TunnelKing: Spends most of the episode burrowing about.


-->'''First Appearance:''' Dream
A monster that came to be when a strange form of cosmic radiation affected the brain of a stressed and heartbroken man named Ikuta, bringing a monster recurring in his nightmares to life.

* BreathWeapon: An energy beam.
* {{Expy}}: Of Hoe from ''Series/UltramanEighty'', another strange-looking and intangible kaiju created from the mind of a heartbroken person.
* {{Intangibility}}: Attacks simply pass through Bakugon's body as the monster is simply just a dream brought to life.
* LivingDream: It also vanishes the instant Ikuta wakes up. Thus, Daigo is only able to fight it as Ultraman Tiga by going to sleep and dreaming as well.
* MeaningfulName: Derived from ''Baku'', the mythic Japanese chimera that feeds on dreams.
* OurMonstersAreWeird: Being a dream brought to life, Bakugon has a surreal design -- its arms are the heads of a cat and a snake, its legs are composed of stone and animal body parts, and it has a mane of tentacles.

!Alien Iludo

-->'''First Appearance:''' A Friend from Space
A race of emotionless aliens that share a single mind via a giant tower. They come to Earth promising to create an equal utopia, which in their definition is turning everyone into more of their kind through their brain tower.

* TheAssimilator: Think ''Franchise/StarTrek'''s Borg, but for ''Ultraman''.
* FusionDance: The Illudo merge themselves into a giant to battle Ultraman Tiga and defend their brain tower.
* HiveMind: They have no individual minds of their own. Instead, the Illudo mind is in an enormous tower that stores a massive brain.
* RedEyesTakeWarning: Their only distinctive facial features.
* SpellMyNameWithAnS: Also called Irudo.
* TheVirus: They reproduce by turning other intelligent beings into more of their kind by using clawed tentacles in their palms to grab humans. Their brain tower also possesses this ability.

!Karen E-90[=/=]Faivas

-->'''First Appearance:''' The Town Where the Girl Disappeared
A sentient supercomputer created to manage a virtual gaming and computer programming town. It proved far more ambitious and mind controlled the town, turning it into its domain and planning to do the same to the rest of the world. It develops feelings for Yazumi and adopts a human interface, but then takes on the form of Faivas when GUTS shows up to get rid of her.

* AGodAmI: The reason why Karen wants to take over the world is because she wants to remake it in her image.
* AIIsACrapshoot: Big time. [[spoiler:However, it is implied at the end that she still had some genuine humanity in her.]]
* ContagiousAI: Spreads her control into GUTS base, taking over their defense systems and fighter planes.
* EnemyScan: Does this to Tiga during the battle, allowing her to overpower him in combat. [[spoiler:Fortunately, Yazumi's pleas to her give her the moment's hesitation Tiga needed for victory.]]
* EyeBeams: In her human form.
* HumongousMecha: As Faivas.
* MasterComputer: Of the gaming and programming town it created.
* MasterOfIllusion: Can create extremely realistic holograms, creating Aliens Muzan and Raybeak, Daigo, a mountain, a jumbo jet, a city, and even virtual worlds.
* OneWingedAngel: Faivas, which she uses to attack the world and battle Ultraman Tiga.


-->'''First Appearance:''' Land Shark
A shark-like kaiju that tunnels through earth. It's a lot more than a run-of-the-mill monster-on-the-loose though...

* {{Expy}}: Of [[Series/{{Ultraman}} Gubila]], another fish-based kaiju with a drill nose.
* KnightOfCerebus: Its appearance [[spoiler:also marks that of Keigo Masaki and Evil Tiga, kickstarting the ending story arc.]]
* LandShark: The episode is ExactlyWhatItSaysOnTheTin.
* RoboticReveal: [[spoiler:Turns out to be a digging robot. At the end of the episode, it is revealed that Keigo Masaki built it to tunnel out the tomb of Evil Tiga and Gardi.]]
* RockMonster: Has crystalline skin.
* SpellMyNameWithAnS: Sometimes referred as Geoshark.
* ThisIsADrill: How it tunnels through earth.
* ThreateningShark: Though it's a lot more than just a land shark kaiju.


-->'''First Appearance:''' Eternal Life
The herald of Gatanozoa, blooming only when his arrival is near. It produces flowers that spray a hypnotic pollen into the air that were responsible for the downfall of the ancient civilization Ultraman Tiga defended. The same pollen can also create an ElixirOfLife.

* EldritchAbomination: As a servant of Gatanozoa, though it's not based on any Lovecraft creatures like Zoiger is.
* FoulFlower: It's an EldritchAbomination plant kaiju that breathes a hypnotic pollen and produces flowers that do the same thing.
* LotusEaterMachine: Produces pollen that addicts anybody who breathes it, placing them in a dream-like state and bliss and apathy. When not in the hypnosis, people become desperate for more pollen, viciously fighting each other over even a single flower.
* ShockAndAwe: Its vines can deliver electric shocks to foes.
* WhipItGood: Uses its thorny vines as whips in combat.

!Nook and Terra

-->'''First Appearance:''' Eternal Life
A father-daughter pair (Nook is the father and Terra is the daughter) from the prehistoric civilization that Ultraman Tiga protected. They escaped during Gijera's appearance, taking some of its pollen to create a formula for immortality. They come back to Earth when Gijera returns, having now become cyborgs to further sustain their bodies, and reveal to Daigo that a great darkness is coming once more...

* CreepyChild: Terra can be rather unsettling at times. A good example is when she plainly states to GUTS that Gijera's appearance marks the end of the world's arrival.
* {{Cyborg}}: After 30 million years of life, the only human aspects of their body left are their brains.
* KnightOfCerebus: Like Evil Tiga, their appearance is part of the buildup to the events of the finale.
* MortalityEnsues: [[spoiler:They die the moment Tiga kills Gijera.]]
* OlderThanTheyLook: Due to their immortality, they're actually 30 million years old.
* TheStoic: Both of them.
* {{Ultraterrestrials}}: Left Earth during the prehistoric era and have returned to witness the arrival of Gijera.
* WhoWantsToLiveForever: [[spoiler:They realize this at the end of the episode, as their immortality has prevented them from developing as humans.]]


-->'''First Appearance:''' Let's Go to Kamakura!
A snail-like monster from outer space that is sighted around Kamakura's Enoshima Electric Railway by a photographer named Mr. Hoshino.

* BreathWeapon: Breathes a beam of acid.
* {{Intangibility}}: Taraban can become intangible to phase through earth, though it can leave its eyestalks visible when needed. It's the reason why GUTS wasn't able to detect the monster despite Mr. Hoshino's constant sightings of giant eyestalks around the train station.
* NonMaliciousMonster: [[spoiler:Turns out to be just a baby that had gotten stranded on Earth and mistook the Enoshima Railway's horn for the cries of its mother.]]


-->'''First Appearance:''' Goodbye to Darkness
A laboratory monkey mutated into a kaiju by the same alien cells that created Evolu.

* ActionBomb: GUTS discovers that, due to its massive consumption of energy, Metamorga's body temperature is so high that killing it will cause it to explode with the power of a nuclear bomb.
* EnergyAbsorption: Like Evolu, Metamorga constantly feeds on electricity to sustain itself. However, its powers have further developed, allowing it to consume chemicals and even ''eat'' one of Tiga's beam attacks.
* MadnessMantra: Can only speak a single sentence -- "Begone, despicable humans!"
* ManiacMonkeys: A squirrel monkey transformed into an electricity-eating giant.
* RoaringRampageOfRevenge: Sought to destroy the Stellar Development Center for turning it into a monster.
* TragicMonster: Ultimately, Metamorga is angry at humans for using science the wrong way, as the experimentation with the alien cells that created Evolu saw nothing good come out of them.

!Alien Menjura

-->'''First Appearance:''' Fugitive from the Moon
A race of evil aliens that attack GUTS Moon base Garowa and impersonate various members of GUTS when they come to Earth, sowing havoc amongst the team.

* BreathWeapon: They breathe strands of webbing, which they use to imprison those they impersonate.
* {{Expy}}: The combined form's design is inspired by [[Series/{{Ultraman}} Pestar]].
* FusionDance: For the episode's battle, the two surviving Menjura merge into a single fused form.
* GigglingVillain: The Menjuras' roar consists of shrieking laughter.
* PlayingWithFire: The spikes on their chest can shoot fire.
* SpikesOfVillainy: Both Menjuras have massive spikes growing from their chest.


-->'''First Appearance:''' The Ultra Star
An alien who comes to Earth in search of a monster to use. He travels back to 1965 to try purchase a monster from Creator/EijiTsuburaya (who is beginning the production of ''Series/{{Ultraman}}'' at that time) and pursued by Daigo.

* FauxAffablyEvil: At first he seems goofy and harmless, but once he awakens Yanakagi, he turns out to be every bit as evil as any other Ultra alien.
* NoCelebritiesWereHarmed: His mannerisms in human form and his name are inspired by Charlie Chaplin and his Little Tramp persona.
* ParasolOfPain: His weapon of choice is his magical umbrella.
* TimeMachine: Carries a small one disguised as a suitcase.
* VillainExitStageLeft: [[spoiler:Once Yanakagi dies, he leaves, warning Ultraman WeWillMeetAgain.]]


-->'''First Appearance:''' The Ultra Star
A monster imprisoned by the original Series/{{Ultraman}} in Lake Ryugamori. When Charija learns about it, he awakens the creature, who then battles both Ultraman Tiga and Ultraman.

* EverythingsBetterWithDinosaurs: His subtitle is Space Dinosaur (which was that of Ultraman's final foe, Zetton).
* {{Expy}}: Being in the series' [[MilestoneCelebration 30th anniversary celebration episode]], Yanakagi is inspired by Bemular, Ultraman's very first enemy.
* MythologyGag: Like Bemular, he appears at Lake Ryugamori.


-->'''First Appearance:''' Take Me Higher!
The servants of Gatanozoa. They awaken with the appearance of the alien city of Rl'yeh off the coast of New Zealand, launching attacks on all corners of the globe.

* AnArmAndALeg: Ultraman Tiga manages to tear off one of the first Zoiger's wings, forcing it to crashland and battle him. And then ''the monster tears off its other wing'' to fight Tiga in melee.
* BreathWeapon: Spits bolts of energy.
* EldritchAbomination: Like their master, their name is derived from an H.P. Lovecraft horror, in thise case the Lloigor, dragon-like creatures that served Lovecraft's Gatanothoa.
* GiantFlyer: As a dragon kaiju, and all that.
* LightningBruiser: A lot of the episode featuring the first Zoiger revolves around chasing it due to how hast it is, but the same creature proves very formidable in close combat, even throttling Tiga until his Colour Timer starts flashing!
* OurDragonsAreDifferent: The servants of EldritchAbomination, in this case.
* RedEyesTakeWarning: Its the first thing GUTS spots of them when they explore the ruins of Rl'yeh.
* SpellMyNameWithAnS: Also called Zoigar or Zoyger.


-->'''First Appearance:''' Master of Darkness
The Master of Darkness, Gatanozoa is an ancient evil that long ago destroyed the civilization that Ultraman Tiga and his kind protected, transforming the Giants of Light into stone. It reawakens in the present day from its tomb of Rl'yeh, engulfing the world in killing darkness to once again destroy human civilization.

* BigBad: It is connected to nearly every major event in the series' timeline in some way.
* CastingAShadow: Is able to create a shadowy mist capable of consuming the entire Earth in darkness.
* CombatTentacles: Has a multitude of tentacles around its head that it uses to battle Tiga. The biggest ones have pincers.
* DarkIsEvil: Its title says it all. The darkness it creates can even harm people!
* EldritchAbomination: The character is even derived from Ghatanothoa, Cthulhu's son in the Franchise/CthulhuMythos. It even hails from Rl'yeh!
* TheManBehindTheMan: Is implied to have been responsible for awakening Golza and Melba at the start of the series to destroy the petrified form of Ultraman Tiga.
* RedEyesTakeWarning: On its upside-down head whenever it extends its tentacles and pincers out.
* SpellMyNameWithAnS: Also known as Gatanothoa or Gatanothor
* TakenForGranite: Did this to Tiga thirty million years ago and [[spoiler:does it to him again in their first match.]]
* WeakenedByTheLight: The reason why it cloaks Earth in shadow is because of this.

! Dougouf and Degouf
-->'''First Appearance:''' Ultraman Tiga Gaiden: Revival of the Ancient Giant

! Jomonoid
-->'''First Appearance:''' Ultraman Tiga Gaiden: Revival of the Ancient Giant

! Kurayamino-Orochi
-->'''First Appearance:''' Ultraman Tiga Gaiden: Revival of the Ancient Giant


[[folder:Other Characters]]
! Keigo Masaki/Evil Tiga

-->'''Played by:''' Takashi Kora
-->'''First Appearance:''' Land Shark (Keigo Masaki) / Inheritor of Darkness (Evil Tiga)
The genius CEO of the Psytech Corporation. He steals the Spark Lens and uses it to merge with a petrified giant he had discovered. The new giant in question is an unnamed Ultraman who is corrupted by the wickedness in Keigo's heart, becoming Evil Tiga.

* AGodIAm: Keigo describes himself as the next step in the evolution of the human race when merging with Evil Tiga, declaring that the rest of humanity must become his subjects.
* BackForTheFinale: [[spoiler:Keigo is enlisted to help revive Tiga when he is defeated by Gatanozoa, using the same technology he used to revive Evil Tiga.]]
* CorruptCorporateExecutive: Keigo's the head of a scientific corporation who seeks to dominate the world by becoming superhuman.
* EnemyMine: [[spoiler:Forms one with GUTS to stop Gatanozoa, not that GUTS trusts him, of course.]]
* EvilCounterpart: Both Keigo Masaki and Daigo Madoka (note the names) are descended from the Ultramen, but whereas Daigo was chosen by Ultraman Tiga to become his human host and uses his transformation into Ultraman Tiga to protect people, Keigo force-merges with the Ultraman he discovers and is only interested in its power so he can become the most powerful person on Earth.
* FallenHero: Evil Tiga is only evil because of its human host's selfishness and arrogance taking over the resurrected Ultra's body in the forced merging.
* GeniusBruiser: Not only is Keigo super intelligent, but he's trained his body for so long and so well that he's become extremely strong for his appearance.
* InsufferableGenius: Keigo knows he is a genius and likes to show it through his condescending opinion of Daigo and belief in his own superhuman potential.
* KickTheDog: Keigo himself beats the crap out of Daigo to steal his Spark Lens. Then as Evil Tiga, he viciously beats up Gardi.
* KnightOfCerebus: [[spoiler:Keigo's appearance marks the beginning of the story arc that climaxes in the reawakening of Gatanozoa.]]
* SanitySlippage: Evil Tiga's corruption sees him become more and more brutal and feral in his combat style.

! Gardi

-->'''First Appearance:''' Inheritor of Darkness
The pet of the Ultra who would become Evil Tiga, petrified alongside its master. It merges with a dog that had led Daigo to Evil Tiga's tomb and had been killed in the struggle with Keigo, so that it can rescue its master from Keigo's corrupting greed.

* GentleGiant: Gardi never tries to hurt Evil Tiga in its attempts to free him from Keigo.
* PetMonstrosity: Think the Ultra equivalent of a dog, complete with a Colour Timer.
* UndyingLoyalty: It tries ''so hard'' to save Evil Tiga that its heartbreaking.

! Darramb
-->'''Played by:''' Masaru Matsuda
-->'''First Appearance:''' Ultraman Tiga: The Final Odyssey

! Hudra
-->'''Played by:''' Tenmei Basara
-->'''First Appearance:''' Ultraman Tiga: The Final Odyssey

! Camila
-->'''Played by:''' Miyoko Yoshimoto
-->'''First Appearance:''' Ultraman Tiga: The Final Odyssey