[[folder: Ultraman Tiga]]
!! Ultraman Tiga

-->'''Voiced by:''' Yuji Machi (series; stock grunts), Hiroshi Nagano (''The Final Odyssey'' and ''Film/SuperiorUltraman8Brothers''), You Murakami (''Series/UltramanGinga S'')
The last of a race of alien giants that arrived on Earth thirty million 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 the ''Franchise/UltraSeries'', set in a new universe. He quickly became one of the most popular Ultra heroes as a result, and has since made return appearances in other series, like ''Series/UltramanGinga'' and ''Series/UltramanX''.
* CriticalAnnoyance: Like most Ultramen, the Color Timer on Tiga's chest flashes red and beeps as he runs low on energy.
* DidYouJustPunchOutCthulhu: All the Ultramen do this, but Tiga should get a special mention because the BigBad of his series is none other than ''Cthulhu's son''!
* EmptyShell: The statue inside the pyramid is this, as the real Tiga departed it long ago, leaving it open for Daigo to possess.
* FinishingMove: Each of his forms has a separate one -- Multi Type uses the Zepellion Ray, Power Type has the Delacium Light Stream, Sky Type possesses the Rainbalt Light Bullet.
* HeelFaceTurn: In ''The Final Odyssey'', [[spoiler:it is revealed Tiga used to be evil and worked alongside the Dark Giants as their most powerful member during a civil war between Ultramen that almost destroyed the 30-million-year-old civilization they protected. However, in his human form, he fell in love with Yuzare, who managed to turn him to the side of light and allowed him to seal his comrades away in stone.]]
* LegacyCharacter: Uniquely, Tiga is this. Over the course of his own series, there have been at least four separate Tigas all in the same bloodline: the original Ultraman Tiga who was the actual Giant of Light, Amui (who is implied to be Daigo's ancestor), Daigo, and Daigo's son Tsubasa.
* LightIsGood: As a being of light.
** DarkIsNotEvil: In ''Ultraman: The Final Odyssey'', [[spoiler:he becomes Dark Tiga this when Camila convinces him Daigo become Tiga again. However, Daigo embraces both the goodness in his heart to control the evil within himself, preventing Tiga from succumbing to his old ways.]]
* LoveRedeems: [[spoiler:His feelings for Yuzare is what made him change sides from darkness to light.]]
* MeaningfulName: "Tiga" means "three" in Malay/Indonesian, referencing his three [[MultiformBalance different forms]].
* MultiformBalance: The first ''Franchise/UltraSeries'' hero with such an ability.
** JackOfAllStats: Multi Type (Omni Mode in the 4Kids dub), his default form.
** MightyGlacier: Power Type (called Power Mode by 4Kids). He turns red and silver.
** FragileSpeedster: Sky Type (renamed Speed Mode by 4Kids), in which he becomes blue and silver.
* PurpleIsPowerful: One of the few Ultramen with purple as a major part of his colour scheme.
* SealedGoodInACan: Daigo discovered him as one.


[[folder:GUTS (Global Unlimited Task Squad)]]
The defense division of the Terrestrial Peace Consortium (TPC), established by the United Nations at the end of the twentieth century as peacekeeping force. The lack of wars in the series' utopian vision of the twenty-first century means that GUTS primarily deals with the monsters and aliens that have replaced the social and environmental issues of the twentieth century.

! The GUTS team
!!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.
* EarnYourHappyEnding: After all the crap he goes through and battles he fights, he's notably one of the very few Ultras to actually get to ''retire'' after his line of duty as Earth's guardian is over. He retires with his wife [[spoiler:Rena]], and as shown in ''Dyna'', goes on to live a happy life on Mars with two kids.
* HalfHumanHybrid: The reason why he is able to become Ultraman Tiga is because he is both "a human and a being of light".
* RetiredBadass: One of the very few Ultras to actually retire. He's still a combat trained officer and it's implied he ''can'' turn into Tiga again but is content in his retirement. All other appearances by Tiga after his series ends are either his AlternateSelf, another person using the mantle, or an AlternateSelf of the original Tiga.
* 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 is also very sweet and cares a lot for Daigo.
* ADayInTheLimelight: "The Man who Fell to Earth", "SOS from the Deep Blue Sea", and "Monster Zoo".
* 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 GUTS 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.]]

!!Captain 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.
* ADayInTheLimelight: "The Devil's Judgement" and "The Mirage of a Monster"
* 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.

!!Commander 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.
* ADayInTheLimelight "The Day the Monster Appeared" and "Vampire City"
* 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.
* ADayInTheLimelight: "Requiem to Darkness", "A Fog is Coming!", and "Goodbye to Darkness"
* 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.
* ADayInTheLimelight: "The Closed Amusement Park", "Human Collecting", and "A Friend from Space"
* 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.
* ADayInTheLimelight: "One Vanishing Moment", "The Time-Transcending Smile", and "The Town Where the Girl Disappeared"
* BetaCouple: With Nurse Mayumi from Episode 28 onwards.
* 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.

! Other GUTS Members
!! General Soichiro Sawai
-->'''Played by:''' Tamio Kawachi
The head of TPC and Secretary-General of the United Nations. While a pacifist at heart, he firmly believes that humanity must do what is most rational in the age of monster and alien attacks -- fight.
* ADayInTheLimelight: "To the Southern Limit", shared with Yoshioka.
* BigGood: He's probably the most important man on the planet, given that he's both head of its global defense force and of its diplomatic peacekeeping organization.
* TheKirk: To Yoshioka's Spock and Nahara's [=McCoy=].
* ReasonableAuthorityFigure: Of the top three men at TPC, he provides the middle ground.

!! Security Director Tetsuji Yoshioka
-->'''Played by:''' Ken Okabe
General Sawai's longtime friend and one of his most important men. Yoshioka is the head of TPC's military division (which includes GUTS), making him a vehement war hawk (though not a foolish one).
* JerkWithAHeartOfGold: Despite his highly militaristic nature, he is shown to be a loyal friend of Sawai, has shown to be quite friendly with GUTS at times, and was even willing to sacrifice his life to save TPC's base from Gatanozoa.
* TheSpock: To Sawais' Kirk and Nahara's [=McCoy=]
* WarHawk: He's usually suggesting to take on any crisis with swift military action, but in a more positive spin, he also knows when it would be stupid to do so and will back down if a less violent and more effective alternative is put forth.

!! Staff Officer Masayuki Nahara
-->'''Played by:''' Take Uketa
One of General Sawai's most important subordinates. Unlike Yoshioka, he is more of a gentleman and a strong advocate of peaceful options and avoiding excessive militarism in TPC.
* TheMcCoy: And he frequently locks horns with Yoshioka as a result.
* OutOfFocus: Gets the least attention of the top three leaders at TPC.

!! Nurse Mayumi Shinjoh
-->'''Played by:''' Kei Ishibashi
The younger sister of Tetsuo Shinjoh and a nurse at the GUTS base hospital.
* ADayInTheLimelight: "The Phantom Dash".
* TheMedic: Of the GUTS team.

!! Dr. Naban Yao
-->'''Played by:''' Ichiro Ogura
An extremely important TPC scientist. He is the creator of the Maxima Overdrive, a lightspeed engine used in many GUTS ships, as well as GUTS' biggest and most powerful aircraft, the Artdessei.

!! Professor Yuji Tango
-->'''Played by:''' Yoichi Okamura
Another important TPC scientist. He is tasked with analyzing the remains of the Ultraman statues found in Tiga's Pyramid of Light, but later joins forces with Keigo Masaki to use them to create an army of Ultramen.


[[folder:Monsters and Aliens]]
!Golza / Fire Golza
[[caption-width-right:300:Click [[labelnote:here]]http://static.tvtropes.org/pmwiki/pub/images/fire_golza_movie.png[[/labelnote]] to see Fire Golza]]

-->'''First Appearance:''' The One who Inherits the Light
A powerful 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 absorbing magma from a dormant volcano, increasing its strength to new levels.

Being the very first kaiju of the Heisei ''Franchise/UltraSeries'', Golza marked the beginning of a new era for the franchise. Thus Golza is one of the most popular monsters of the franchise and has frequently returned in later entries against other Ultra heroes. 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.
* LastOfHisKind: Implied. A flashback in ''The Final Odyssey'' shows multiple Golzas fighting numerous Ultramen, suggesting the one in the series may be a survivor.
* 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. And even then, he somehow returned in ''Series/UltramanDyna'']].
* 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
An aerial monster similar to Golza in its origins. Melba was reawakened on Easter Island in the present to assist Golza in locating and destroying the petrified Ultras, leading GUTS in a race against time to awaken the ancient Giants of Light.
* EyeBeams: It's primary ability.
* FragileSpeedster: In comparison to Golza's MightyGlacier.
* GiantFlyer: It's a kaiju, and all that.
* OurDragonsAreDifferent / PteroSoarer: 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.
* SinisterScythe: Has huge sickle-like middle claws.
* StarterVillain: Along with Golza, [[spoiler:although Melba didn't escape the battle.]]


-->'''First Appearance:''' Legend of the Stone
A pair of subterranean monsters (implied to be mates) known in the stories of the local miners as naturally feeding on mineral matter. However, when the mines are emptied of resources, the beasts begin to terrorize the miners with their petrifying breath.
* BreathWeapon: They breathe a beam of energy that encases victims in stone.
* 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
-->'''Voiced by:''' Masaharu Sato
A mysterious but malevolent race of humanoids that have lived on Earth far longer than humankind, with two appearing in the series. The first Kyrieloid took the form of a prophet to spread omens of purifying flame that were followed up with pillars for fire bursting from the ground to destroy buildings. The second one used a mass sighting of an angel to instill panic of Judgement Day's arrival and form a cult against Ultraman Tiga that would allow it call forth an army of its kind.
* AncientEvil: So ancient that not even those from Tiga's period know their origins!
* 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.]]
* BeneathTheEarth: In the 4Kids dub, they hail from the Earth's core, whereas the original Japanese version left it mysterious.
* 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.
* DubNameChange: In the 4Kids dub, they're called the Kilaliens.
* 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.
** BladeBelowTheShoulder: Grows a pair in Power Type.
** GoodWingsEvilWings: For Sky Type, it grows bat-like wings.
* 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 extraterrestrial entity made out of light that absorbed the spaceship Jupiter 5 (as well as the astronauts inside), transforming the ship into a metallic monster that then came to Earth in search of energy to consume.
* 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 able to fire flashes of energy that cause explosions or hack into computers to assimilate data.
* EnergyAbsorption: Ligatron consumes energy to fuel its spaceship body.
* EnergyBeing: Its true form is an entity composed of bright light.
* HandBlast: Ligatron can fire a blue laser bu putting its blade-claws together.


-->'''First Appearance:''' The Day the Monster Came Out
A strange corpse-like monster that washed up on shore one day. GUTS was initially called in to clean up the apparently deceased creature, but when it unpleasantly turned out to be alive, strategies had to be switched.
* BreathWeapon: Breathes toxic gas.
* HealingFactor: Constantly regenerates itself, even when GUTS ''melted'' its skin and flesh off!
* LongNeck: Possesses the weird ability to stretch out its neck to strike at foes.
* OurZombiesAreDifferent: Sealizar was first discovered as a corpse, but of what variation is unclear as it is never seen alive.
* SeaMonster: As you can tell by its name, and judging from the fact that it first appeared washed up on a beach from somewhere under the ocean.


-->'''First Appearance:''' Second Contact
A cluster of tiny aerial creatures nicknamed "Critters" that was mutated by aerial pollution into a singular entity with an appetite for humans. A second one appears later on when more Critters are mutated by the plasma energy waves produced by a new power plant.
* 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 plasma 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 night to kidnap children and consume their hopes and dreams. On one night, she visited a small Japanese town that celebrated Halloween, but it happened to be that GUTS was visiting that very place to both enjoy the holiday and investigate a weakening between dimensions caused by the witch's arrical.
* 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.
* MindControl: Any child who takes her drugged candy falls victim to this, making it easy for Giranbo to capture them.
* 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 Waited for a Monster
A strange monster from outer space that suddenly came to Earth in the form of a massive shell when called forth by a mysterious girl named Saki. While GUTS does some investigation on Saki's identity, Makeena rampages about apparently in search of something...
* 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 their children to feed its unborn young. A second one later appears to battle Silvergon, allwoing the latter to demonstrate its immense strength against Gagi's barrier field.
* 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.
* 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 TPC's Stellar Development Department, exposed himself to alien cells that he had been experimenting on, giving him the ability to metamorphose into a kaiju at sudden moments due to the resulting genetic instability.
* 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 dolphin-like sea monster mutated by radioactivity left over by underground nuclear testing from the past that had leaked into the ocean after a series of earthquakes.
* BreathWeapon: Can spit electrified bubbles.
* 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.
* FriendlyPlayfulDolphin: Its motif.
* MakingASplash: Can spray high pressure water 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
-->'''Voiced by:''' Hirohiko Kakegawa (leader), Masaharu Sato (lackeys)
A race of bird-like aliens who specialize in enslaving a coexisting species of HumanAliens. But with their slave population on the brink of extinction, they turn to Earth to capture humans with shrinking guns and bring them to their homeworld as replacements. They are also notable for being the only non-giant monsters in the show that Tiga fights, making them similar to many of Series/UltraSeven's opponents.
* 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.
* SlaveryIsASpecialKindOfEvil: They specialize in slavery, as on their home planet, they have enslaved a coexisting race of HumanAliens and treat them so badly that the slaves had to be replaced them with Earthlings.

!Alien Muzan

-->'''First Appearance:''' The Released Target
-->'''Portrayed by:''' Masaharu Sato (alien form voice), Tenmei Basara (human form actor)
An alien hunter who comes to Earth not for conquest, but for bloodsport, as he sends out two slaves named Rucia and Zara to Earth and lets them run about while he wanders the planet to kill them at his own 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.
* LongNeck: His kaiju form's four-legged mode has one.
* 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
-->'''Played by:''' Asami Katsuragi (Rucia), Shogo Shiotani (Zara)
Two human-like aliens of the same species (Rucia is the female and Zara is the male) sent to Earth by Alien Muzan to be hunted for sport. GUTS runs into Rucia after rescuing her from Muzan in the city, while Zara hides in the forest with Muzan pursuing him in his spaceship.
* 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.

!Sakuna Oni

-->'''First Appearance:''' The Demon's Return
A fearsome oni that was originally defeated long ago by the samurai Kagetatsu, who then split the body into pieces and buried them. Sakuna Oni came back to life in the present after thieves stole Kagetatsu's relics from the shrine meant to seal it away, which resulted in Kagetatsu's spirit taking over the body of one of the crooks to stop the demon once again.
* BilingualBonus: Its name essentially means "One-Eyed Ogre".
* 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.
* LosingYourHead: Ultraman Tiga finds this out when he decapitates Sakuna Oni. [[spoiler:Fortunately, Kagetatsu's sword manages to finish it off.]]
* OffWithHisHead: Has the notable honour of being the last Ultra monster in the franchise to get decapitated.
* {{Oni}}: A legendary demon sealed away centuries ago by a great warrior.
* PullingThemselvesTogether: Due to the fact that Kagetatsu split each of its body parts up when he buried them, Sakuna Oni's first act upon having its tomb's seal broken is to get itself back together, resulting in gigantic arms and legs popping up around the countryside.
* 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
[[caption-width-right:240: Abolubas; Redle is identical but coloured red.]]

-->'''First Appearance:''' Red and Blue's Battle
-->'''Voiced by:''' Kozo Shioya (Abolubas), Tomohisa Aso (Redle)
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.
* {{Expy}}: Inspired by [[Series/{{Ultraman}} Aboras and Banila]], as well as [[Series/ReturnOfUltraman Alien Mysteler]].
* 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 / Gobunyu Giga

-->'''First Appearance:''' GUTS into Space Part 1
Robotic soldiers produced en masse by a mechanical space fortress sent by mysterious forces (implied to be the Kyrieloids) to destroy humanity after TPC develops Earth's greatest piece of technology yet, 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.
* MechaMooks: Of the mysterious space fortress that spawns them.
* 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 directly from the mass of the flying mechanical fortress to defend it from invaders, such as GUTS when they land on the strange satellite in order to plant powerful explosives upon it.
* 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. However, since his abilities are nullified by those of his kindred Deban, his other priority is to kill the friendly little alien at all costs.
* {{Archenemy}}: Of Deban.
* EvilLaugh: His "roar".
* 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.
* {{Jerkass}}: A bullying and violent being who revels in making people hurt each other.
* OurDemonsAreDifferent: Although he's actually an alien, Enomena's design is heavily based off demons. His BossSubtitles is simply Majin (Demon).
* PsychoticSmirk: Bears a permanent one on his face.
* ShockAndAwe: Can electrify his claws in combat.


-->'''First Appearance:''' Deban's Turn
A friendly alien that is apparently of the same species as Enomena but lives on Earth as a performer for a small circus troupe. He releases healing energy waves that nullify those of Enomena, making him a target of the invader'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 living meteorite to feed it life energy from parasitized victims. The parasites hunt for victims from a cloak of fog, striking from a village Horii is sent to investigate. They can also 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.
* {{Expy}}: Of Okorin from ''Series/UltramanEighty'', another lumpy, extraterrestrial kaiju formed from a species of ball-like parasites.
* 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 male and female pair of ''[[https://en.wikipedia.org/wiki/Stenonychosaurus Stenonychosaurus]]'' genetically modified by the Naga into humanoid servants to help them in their conquest of Earth. Having waited for their masters' return for millions of years, they are used by the ancient invaders 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
-->'''Voiced by:''' Mariko Takigawa
A race of evil aliens that conquered the Earth during the late Cretaceous period, but then left for unknown reasons. However, they planned on eventually coming back, creating the Dinosauroids and the 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.


-->'''First Appearance:''' Planet of the Dinosaurs
A pair of ''[[https://en.wikipedia.org/wiki/Tarbosaurus Tarbosaurus]]'' transformed into cyborg kaiju weapons by the Alien Naga. They were hidden away for millions of years, but baffled paleontologists soon discovered them, which the Naga and the Dinosauroids took as the opportunity to restart their conquest of Earth.
* 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.
* ChestBlaster: They have machine guns built into their chests.
* {{Cyborg}}: Obviously.
* EverythingsBetterWithDinosaurs: Cyborg dinosaurs created by aliens!
* 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 produces poison smog capable of killing large areas of forest. The creature had been slumbering underground for years, but twentieth-century vehicle exhaust seeping underground awoke it and allowed it to grow in power.
* {{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.
* SpellMyNameWithAnS: Also called Litolumalus or Litmars.
* 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, including an investigating GUTS and a trapped family.

Silvergon is one of the few kaiju from ''Series/UltramanTiga'' that has appeared other entries of the ''Franchise/UltraSeries'', 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!
-->'''Voiced by:''' Shoichiro Akaboshi (also human form actor)
A {{youkai}} known in the folklore of Hikono Village as a mischief-maker who thrives in darkness, Obiko (short for Obikoboushi) disguises himself as a noodle vendor to scare people with his magical shadow. But when his pranks begin to grow more violent with the village's modernization, GUTS comes in to find out what's going on.
* 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.
* LivingShadow: His perpetual companion and partner-in-mischief.
* TheMagicGoesAway: [[spoiler:An unfortunate victim of the modernization of the human world pushing out the magical creatures that humanity once feared.]]
* MercyKill: [[spoiler:When GUTS tells him that the primitive village of the olden days is gone for good, he lets Ultraman Tiga kill him.]]
* 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.]]
* ShockAndAwe: In human form, he carries a magical staff that shoots lightning.
* TeleportSpam: Can teleport between places of darkness, which he uses to frustrate GUTS when they're chasing him around town.
* VoluntaryShapeshifting: His preferred form is a noodle vendor, with his magical shadow hiding inside the cooking pot.
* WeakenedByTheLight: The reason why he enjoys the darkness so much and [[spoiler:wishes that his home village would return to its pre-street lights days.]]
* {{Youkai}}: Not based on any real examples, but is definitely meant to be one.


-->'''First Appearance:''' One Vanishing Moment
A strange monster that unexpectedly appeared after it was awoken by radio waves being emitted by GUTS' communicators during their operation to destroy the Critters and end the Gazote menace once and for all.
* BigCreepyCrawlies: Vaguely resembles a stag beetle.
* BladeBelowTheShoulder: Possesses blades for arms.
* GiantSpaceFleaFomNowhere: Very little explanation is given to Jobarieah's nature and origins as it just suddenly appears in the middle of a more important GUTS mission, leaving few men to deal with it.
* ShockAndAwe: Shoots lightning from its horns.

!Alien Natarn

-->'''First Appearance:''' A Memory of Blue Skies
An evil alien who comes to Earth in pursuit of two good alien siblings that have taken refuge in human hosts -- Shinjoh (captured by the brother in search of his sister) and a popular singer named Maya Cruz (taken by the sister many years before, only to have forgotten her original identity).
* {{Archenemy}}: Of the unnamed aliens that possess Shinjoh and Maya. His species were originally allies of theirs' but war broke out when Natarn's kind betrayed them.
* 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 simple mole mutated into a nocturnal kaiju by underground nuclear waste. The creature appeared near a zoo to doze one day, and although Rena believed the creature should be spared, the rest of the team were worried about what would happen if it woke up.
* 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
-->'''Voiced by:''' Tomohisa Aso
An artificial lifeform from the planet of the same name, Bizaamo's purpose was to increase oxygen levels in the atmosphere. Its capsule was discovered in Antarctica by TPC scientists who hoped to use it for good, but the entity cared only about its need 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 why it [[spoiler:destroyed its creators' homeworld as it developed and]] attacked Horii when he tried to befriend it. However, GUTS feels pity for how such an intelligent being lacked compassion for others, preventing it from understanding how it could use its powers for good.
* 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.
* AscendedToAHigherPlaneOfExistence: [[spoiler:After completing its purpose, it becomes a huge and beautiful phoenix-cockatiel hybrid made of light and soars off into space with Asami's ghost on its back, suggesting this trope is what happened.]]
* 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 vampire cultists. It came to Japan in order to spread its virus further after it captured a journalist from Tokyo who had come to investigate the rumors.
* 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 being held at the South Pacific's Coreomos Islands by General Sawai. It spawns small Deshimonias to hold the gathered officials hostage and attack GUTS when they head for a rescue mission.
* 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 in a state of hibernation by GUTS' predecessors in 1968. The specimen was dubbed "Sleeping Beauty" and taken in for study, but the alien awoke in the present shortly after Deshimonia's appearance, taking over the body of Rena to destroy humanity.
* 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 in its original assault on Earth in 1968. The creature was hidden in the Kunlun Mountains of Tibet afterwards, reactivating when the alien's plans to seize Earth for his kind began anew.
* 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.
* OurDragonsAreDifferent: ''Cyborg alien'' dragons!


-->'''First Appearance:''' The Time-Transcending Smile
A formidable monster that possesses mastery over space-time. Its appearance was heralded by the presence of strange storms that transported numerous things from across time and space, including a girl from 1915 named Teri Tezuka.

Like Silvergon, Goldras has appeared in few other ''Franchise/UltraSeries'', but as King Goldras instead, which lacks the time-controlling powers in favour of being even more powerful than the original one.
* 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!
* TheJuggernaut: Goldras proved to be one of Ultraman Tiga's toughest opponents due to its powerful abilities and natural strength.
* ShockAndAwe: Can shoot lightning from its horns. Its time storms also warp victims through time by hitting them with lightning bolts.
* SuperStrength: Of all the monsters in this series, only Silvergon outmatches Goldras' sheer strength, as it was able to give even Tiga's Power Mode a challenge.
* 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
-->'''Voiced by:''' Hitomi Miwa ("daughter") and Chisako Hara ("mother")
A pair of kabuki-based aliens sent out as scouts for an invasion force from the Riskaut Nebula. They come to Japan during its famous ''hanami'' CherryBlossoms festivals, 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. However, GUTS was slow to respond to sightings of the duplicates due to confusion with a plan by Tiga-hating TPC leader Tatsumura to cause panic with kaiju holograms and ruin the hero's reputation.
* 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.
* RedHerring: Faldon's episode revolves around Iruma dealing with an unscrupulous GUTS leader using monster illusions to instill mass hysteria, so the monster's role is essentially to add to the confusion as Iruma assumes Faldon's illusions are just the work of GUTS, and not an actual creature.


-->'''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 Makio Kirino to not become Ultraman Tiga or else have his secret identity revealed.
* AchillesHeel: [[spoiler:Makio 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 Makio, 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
An incredibly surreal monster that came to be when a strange form of cosmic radiation washed over the home 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 brain contained in a 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
-->'''Voiced by:''' Yukina Kurisu (also human form actor)
A sentient supercomputer created to manage a virtual gaming and computer programming town. It proved far more ambitious and mind controlled the town, turning the place 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 using the drill-like projection on its snouts. But as Daigo soon finds out, Geozark is actually a lot more than your everyday monster-on-the-loose...
* {{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.]]
* SharkFinOfDoom: For most of the episode, only its gigantic fin cutting through the earth and smashing everything in its path is visible.
* SpellMyNameWithAnS: Sometimes referred as Geoshark.
* ThisIsADrill: How it tunnels through earth. It can also fire an energy beam from the drill.
* ThreateningShark: Though it's a lot more than just a land shark kaiju.
* TunnelKing: Thanks to the drill nose.

! Gardi

-->'''First Appearance:''' The One who Inherits the Shadows
The pet of the Ultra who would become Evil Tiga, petrified alongside its master. Gardi takes host in a little dog that had led Daigo to Evil Tiga's tomb and been killed in the struggle with Keigo Masaki, so that it can rescue its master from his descent into madness.
* CanineCompanion: The Ultraman version of whoever Evil Tiga once was.
* CriticalAnnoyance: Has a Colour Timer.
* 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.
* SealedGoodInACan: Was petrified alongside its master 30 million years ago.
* SpellMyNameWithAnS: Also translated as Guarde or Guardi.
* UndyingLoyalty: It tries ''so hard'' to save Evil Tiga that its heartbreaking.


-->'''First Appearance:''' Eternal Life
The herald of Gatanozoa, blooming only when his arrival is near. It produces flowers that spray an addicting and hypnotic pollen into the air responsible for the downfall of the ancient civilization Tiga defended. Now Gijera has returned in the present to do use its bliss-inducing pollen on humanity once more.
* 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.
* {{Herald}}: Its purpose is to prepare the world for the awakening of Gatanozoa by putting humanity into a state of defenseless and chaos so the Master of Darkness can destroy civilization without opposition.
* KnightOfCerebus: Even moreso than Geozark and Evil Tiga, as its appearance heralds the return of Gatanozoa.
* LotusEaterMachine: Produces pollen that addicts anybody who breathes it, placing them in a dream-like state of bliss and apathy. When not in the hypnosis, people become desperate for more pollen, viciously fighting each other over even a single flower. On the other hand, the same pollen can also create an ElixirOfLife.
* ShockAndAwe: Its vines can deliver electric shocks to foes.
* WhipItGood: Uses its thorny vines as whips in combat.


-->'''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, only for GUTS to be unable to find the creature every time he reports it to them.
* 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.
* {{Invisibility}}: Although only its eyes remain visible.
* 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
-->'''Voiced by:''' Masaharu Sato
A laboratory monkey mutated into a kaiju in experiments by the Stellar Development Department using the same alien cells that created Evolu. Metamorga escaped the lab after the Evolu incident and returned seeking vengeance against its former captors.
* 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
Shape-changing aliens that attack GUTS Moon base Garowa, sending its sole survivors Captain Hayate, Lieutenant Kishnaga, and Officer Okabe fleeing for Earth. However, the aliens follow them to GUTS' base, impersonating various people to sow distrust 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. They also gain a laser blaster in between them in the fused form, though Tiga is able to destroy it to split them up.
* GigglingVillain: The Menjuras' roar consists of shrieking laughter.
* PlayingWithFire: The spikes on their chest can shoot fire.
* {{Shapeshifter}}: Many aliens in the Ultra Series can disguise themselves as humans, but the Menjura are unique for they are among the few that can transform into specific individuals (so long as they have seen the person), which they use to sow distrust amongst the GUTS base.
* ShockAndAwe: Can deliver powerful electric shock by grabbing others.
* 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 get a monster from Creator/EijiTsuburaya (who is developing ''Series/{{Ultraman}}'' at the time), but is pursued by Daigo through the time portal.
* 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.
* MythologyGag: His WeWillMeetAgain warning and the way he vanishes afterwards homage Alien Mephilas from the original ''Series/{{Ultraman}}''.
* 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}} under Lake Ryugamori. When Charija learns about the creature, he awakens the creature, who then battles both Ultraman Tiga and the original Ultraman.
* BilingualBonus: His name means "Ugly Face" in the Okinawan dialect.
** The monster also has kanji on its stomach that read "[[Creator/EijiTsuburaya Tsuburaya]]", in honour of the ''Franchise/UltraSeries''' 30th anniversary.
* EnergyAbsorption: Was able to consume Tiga's Colour Timer energy.
* 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.
* SpellMyNameWithAnS: Also spelled Yanaka'''r'''gi.


-->'''First Appearance:''' Take Me Higher!
The dragon-like servants of Gatanozoa. They awaken with the appearance of Gatanozoa's tomb of R'lyeh off the coast of New Zealand, launching attacks on all corners of the globe in preparation for their master's return. In ''Ultraman Tiga: The Final Odyssey'', the Zoigers return as human-sized creatures under control of the Dark Giants, but maintain their viciousness.
* 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!
* MookCarryover: In ''The Final Odyssey'', the Dark Giants gain control over them and send the swarms to attack GUTS.
* 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.
* SealedEvilInACan: Imprisoned in R'lyeh with their master for 30 million years.
* SpellMyNameWithAnS: Also called Zoigar or Zoyger.
* ZergRush: They employ this in ''The Final Odyssey''.


-->'''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 R'lyeh, engulfing the world in killing darkness to once again destroy human civilization and the Ultra heroes.
* AncientEvil: First appeared 30 million years ago to destroy human civilization, and now he's gonna do it all over again.
* BigBad: It is connected to nearly every major event in the series' timeline in some way and was foreshadowed from the very beginning.
* 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 R'lyeh!
* 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, as well as awakening the appearances of various other monsters like Galra and Silvergon.
* RedEyesTakeWarning: On its upside-down head whenever it extends its tentacles and pincers out.
* SealedEvilInACan: Imprisoned in R'lyeh with the Zoigers and the Dark Giants [[spoiler:as underneath R'lyeh is the ruins of the civilization Tiga protected.]]
* SpellMyNameWithAnS: Also known as Ghatanothoa 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.


-->'''First Appearance:''' Ultraman Tiga Gaiden: Revival of the Ancient Giant
A dragon from ancient Japan that is seen battling Maharoba. The warrior-girl kills the monster easily and discovers the Spark Lance in its corpse.
* NamesToRunAwayFromReallyFast: Its name means ''Eight Headed Serpent of Darkness''.
* {{Orochi}}: Named after the legendary dragon, but it only has one head.
* WeHardlyKnewYe: It only appears to establish Maharoba's character and to give her the Spark Lance she will lend to Tsubasa and Amui, as well as the sword Yaminagino-Tsurugi.


-->'''First Appearance:''' Ultraman Tiga Gaiden: Revival of the Ancient Giant
A monster commanded by the evil wizard Dogura. Its appearance through a time portal was responsible for dragging Daigo's son Tsubasa into the ancient past, and Dogura continued to use the creature in an effort to destroy Amui's village and uncover Tiga's place of slumber.
* BreathWeapon: Daidara uses his magic to grant it the ability to breathe fire.
* EverythingsBetterWithDinosaurs: Resembles a quadrupedal T-Rex.
* MeaningfulName: Derived from the Jomon Period, which it originates from and much of the story is set in.
* PetMonstrosity: Of Dogura, who uses it alongside his lackeys Daidara and Orochi to destroy Ultraman Tiga.


-->'''First Appearance:''' Ultraman Tiga Gaiden: Revival of the Ancient Giant
A golem created by Dogura from the remains of a prototype called Degouf, which had been defeated by Tiga in a prior attack on Amui's village. Dogura was unleashed by the sorceror in order to find Ultraman Tiga's petrified form, as well as destroy his descendants.
* BlindedByTheLight: Dogouf can unleash a blinding light from its eyes while charging up its EyeBeams.
* EyeBeams: Can fire bolts of white energy from its eyes, often in combination with its BlindedByTheLight ability.
* {{Golem}}: Inspired by the mysterious alien-like figurines of ancient Japanese history known as [[https://en.wikipedia.org/wiki/Dogu Dogu]].


[[folder:Other Characters]]
! Other Humans
!! Yuzare

-->'''Played by:''' Mio Takagi
A woman from the 30 million year old civilization that Ultraman Tiga protected.
* UncannyFamilyResemblance: She is implied to be the ancestor of Captain Iruma.

!! Keigo Masaki

-->'''Played by:''' Takashi Kora
The genius CEO of the Psytech Corporation, who is also descended from the Giants of Light like Daigo. He steals the Spark Lens and uses it to merge with a second petrified Giant of Light he had discovered.
* AGodIAm: He 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.
* 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.
* GoneHorriblyWrong: [[spoiler:His attempt to control Evil Tiga leads to the giant's SanitySlippage and rampaging across the city]].
* 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.
* KnightOfCerebus: [[spoiler:Keigo's appearance marks the beginning of the story arc that climaxes in the reawakening of Gatanozoa.]]
* MadScientist: Reduced to one in the 4Kids dub.

!!Tsubasa Madoka

-->'''Played by:''' Shogo Yamaguchi
Daigo's son from 21 years after the events of ''Series/UltramanDyna'' and protagonist of the gaiden ''Revival of the Ancient Giant''. He too is a member of GUTS, but one day, he ends up sucked into a wormhole and ending up five thousand years in the past, where he learns a little about the history of Ultraman Tiga and his family line.


-->'''Played by:''' Makoto Kamijo
A village boy who lives in what is known as [[https://en.wikipedia.org/wiki/Jomon_period the Jomon Period]] of Japanese history. He befriends Tsubasa when the latter ends up in the past and ends up discovering that his connections with Ultraman Tiga.


-->'''Played by:''' Yuri Yamazaki
A vagabond warrior girl from the Jomon Period who allies with Tsubasa and Amui. She bears a striking resemblance to Tsubasa's sister Hikari Madoka.
* ActionGirl: A wandering swordswoman capable of slaying kaiju-sized dragons all by herself.
* UncannyFamilyResemblance: Her resemblance to Hikari Madoka is used to imply that she is Rena's ancestor.


An evil wizard from the Jomon Period who commands the monsters Dogouf and Jomonoid, as well as two human lackeys (a spellcaster named Daidara and a warrior named Orochi). He seeks to take over ancient Japan and prevent the resurrection of Ultraman Tiga.
* BigBad: Of ''Revival of the Ancient Giant''.
* EvilSorceror: He uses his magic to create and command powerful monsters, and hopes to one day rule ancient Japan with it.
* MeaningfulName: Like Dogouf, his name is derived from the enigmatic Dogu figuines of Japanese archaeology, which is emphasized in the Dogu-like mask he wears.

! Fallen Ultramen
!! Evil Tiga

-->'''First Appearance:''' The One who Inherits the Shadows
An unnamed Ultraman discovered by Keigo Masaki, who intends on merging with it to become a god. However, the Giant of Light is corrupted by the wickedness in Keigo's heart, becoming Evil Tiga.
* 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.
* KickTheDog: Literally! Evil Tiga viciously beats up Gardi.
* OnlyKnownByTheirNickname: Evil Tiga is simply a nickname given by GUTS to describe the Ultraman driven to madness by Keigo's selfishness. No source has ever revealed the fallen hero's true name.
* SanitySlippage: Evil Tiga's corruption sees him become more and more brutal and feral in his combat style. [[spoiler:Horii's words imply that not even Keigo was controlling his actions, meaning that said Ultraman was reduced to a rampaging monster]].

!! Darramb

-->'''Voiced by:''' Masaru Matsuda (also human form actor)
-->'''First Appearance:''' Ultraman Tiga: The Final Odyssey
One of a trio of evil Ultramen called the Dark Giants. He was once the best friend of Ultraman Tiga, but when was sealed away in stone long ago like the rest of the giants. Then two years after the defeat of Gatanozoa, he is freed from his prison on R'lyeh by TPC.
* TheBrute: Of the Dark Giants, with the arrogance to fit one.
* EvilFormerFriend: He was Ultraman Tiga's best friend [[spoiler:before Tiga defected from the Dark Giants.]] Darramb still isn't happy that their friendship has long ended.
* GratuitousEnglish: For some reason, he tends to spout a few random English phrases, with a fondness for calling Tiga "My Friend".
* MightyGlacier: Super strong, but doesn't have much else going for him beyond that. [[spoiler:Tiga gained his Power Type by defeating him.]]
* PlayingWithFire: Can smash the ground with his hands to channel fiery eruptions as a FinishingMove.
* RedAndBlackAndEvilAllOver: The only one of the Dark Giants to be coloured that way.
* SealedEvilInACan: Imprisoned in stone for 30 million years and very much evil
* SuperStrength: His primary ability is that he's absurdly strong, even for an Ultraman.

!! Hudra

-->'''Voiced by:''' Tenmei Basara (also human form actor)
-->'''First Appearance:''' Ultraman Tiga: The Final Odyssey
The second of the three Ultramen known as the Dark Giants, who share a mysterious and frightening past with Ultraman Tiga. He too was petrified long ago with his comrades and entombed in R'lyeh. However, a TPC expedition to study the island after Gatanozoa's defeat leads to the three Ultramen being freed.
* AxCrazy: He's completely psychotic in his mannerisms and behavior, taking great glee in the opportunity to kill Ultraman Tiga.
* ArmCannon: Wields a crossbow-like weaponon his wrist that shoots bolts of energy.
* BladeBelowTheShoulder: His ArmCannon can also become one when necessary.
* FragileSpeedster: Hudra is extremely swift, but easily beaten. [[spoiler:It is revealed that Tiga gained his Sky Type by defeating him.]]
* SealedEvilInACan: Along with Darramb and Camila.
* SpellMyNameWithAnS: Also called Hyudra.

!! Camila

-->'''Voiced by:''' Miyoko Yoshimoto (also human form actor)
-->'''First Appearance:''' Ultraman Tiga: The Final Odyssey
The leader of the Dark Giants. She was once Ultraman Tiga's lover until he imprisoned her in stone along with Darramb and Hudra. They remained there for thirty million yars until the trio were awoken by a TPC expedition in the present.
* BigBad: Of ''The Final Odyssey''.
* NotGoodWithRejection: Doesn't take it well when Tiga left her back then to redeem for his actual love for Yuzare. Even less so when she finds out about Rena.
* OneWingedAngel: [[spoiler:Whe she realizes that Ultraman Tiga[=/=]Daigo is now engaged with Rena, she calls upon Gatanozoa's residual darkness to transform herself into a gargantuan shadowy version of Gatanozoa called Demonozoa.]]
* PsychicPowers: Displayed them in human form.
* SealedEvilInACan: Was sealed in stone for 30 million years.
* ShockAndAwe: Can shoot lightning from her hands in human form.
* SpellMyNameWithAnS: Also called Kamila or Camira.
* WhipItGood: Her weapon of choice is an energy whip that can also transform into a blade.
* {{Yandere}}: And how?