[[folder:G.U.T.S. (Global Unlimited Task Squad)]]
!!Daigo Madoka/Ultraman Tiga

->Played by: [[Music/{{V6}} Hiroshi Nagano]]

A member of G.U.T.S who gains the ability to transform into Ultraman Tiga after coming across the Tiga Pyramid.

Daigo/Tiga Provides examples of:

* CriticalAnnoyance
* DidYouJustPunchOutCthulhu: [[spoiler: The BigBad is a CthulhuMythos EldritchAbomination named Gatanozoa, who in the 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
* TheHero
* 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
* TransformationTrinket: The Spark Lance

!!Rena Yanase

->Played by: Takami Yoshimoto

* AcePilot: Although with rather limited effectiveness against the various [[MonsterOfTheWeek Monsters of the Week]].
* TheLancer
* OfficialCouple: With Daigo. Especially 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. They eventually make up.
* SecretSecretKeeper

!!Megumi Iruma

->Played by: Mio Takagi

* TheCaptain: of G.U.T.S
* SupportingLeader

!!Seiichi Munakata

->Played by: Akitoshi Ohtaki

* GuyInBack: He gives commands while sitting at the back of the jet.
* NumberTwo
* TheTeetotaler: Orders milk at the bar, even when Iruma's buying!

!!Masami Horii

->Played by:Yukio Masuda

* TheComicallySerious: Has his moments.
* KansaiRegionalAccent
* TheSmartGuy

!!Tetsuo Shinjoh

->Played by: Shigeki Kagemaru

!!Jun Yazumi

-> Played by: Yoichi Furuya

* MissionControl

[[folder:Monsters and Aliens]]

Various monsters faced by G.U.T.S and Tiga throughout the series.

The monsters in general provide examples of:

* {{Kaiju}}
* MonsterOfTheWeek
* PeopleInRubberSuits

Miscellaneous specific monsters provide examples of:

* AdultFear: A lot of monsters seem to reflect societal fears - Giranbo gives out drugged candy on Halloween, and kidnaps the children who take it. Gijera produces pollen that addicts anybody who breathes it, leaving them blissful and apathetic, and so on.
* MonsterIsAMommy: Inverted in episode 46. The monster was ''looking for'' its mommy.
* PokemonSpeak: Both versions of Kyrieloid only "speak" by saying "kiri" in repetition.
* RoboticReveal: [[spoiler:Geozark in episode 43.]]
* TakenForGranite: An ability used by the Gakumas in episode 2.
* TheUndead: Sealizer was first discovered as a corpse.
* WeakenedByTheLight: One of the Standel aliens in episode 17.









!Alien Regulan






!Alien Raybeak

!Alien Muzan

!Rucia & Zara

!Sakuna Oni

!Abolubas and Redle

!Fire Golza

!The Gobunyu





!Alien Naga






!Alien Nataan

!King Molerat




!Alien Deshimo




!Alien Manon






!Geo Shark









The Ruler of Darkness.

* BigBad: of the series.
* DarkIsEvil
* EldritchAbomination: The character is even derived from Ghatanothoa in the CthulhuMythos.

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

A MadScientist descended from the ancient race. He has DNA similar to Daigo.

* BackForTheFinale: [[spoiler:He is enlisted to help revive Tiga who had reverted to a statue after battling Gatanozoa.]]
* EvilCounterpart: As Evil Tiga, his powers are similar to those possessed by Ultraman Tiga in Multi Type.
* HandBlast: His own energy attacks
* LightIsNotGood: Evil Tiga is a being of light, similar to Tiga. Although his energy attacks take a more "dark" appearance compared to Tiga's.
* MadScientist

! Gardi

The pet of the Ultra who would become known as "Evil Tiga"

* KickTheDog: The role in the series.
* ShootTheDog: Sadly so.
* TragicMonster