'''Hoshikawa Family'''
!Gaku Hoshikawa

AKA '''[[color:red:Five Red]]'''. The eldest of the Hoshikawa siblings, when he was a kid, he shot Galois on the face out of fear, instigating their rivalry. As of present day, he's a science teacher, mostly dabbling in plant life/biology. Is scared of ghosts.

* CoolSword: V Sword
** BifurcatedWeapon: V Sword + Power Grip = V Shuttler.
* DisneyDeath: Died, but immediately got better thanks to Kazumi.
* GeniusBruiser
* LawOfChromaticSuperiority
* TheLeader
* PromotionToParent: Assisted with Arthur.
* SignatureMove: ''V Sword Spark''
* TheSmartGuy: A science teacher.
* TeamDad
* [[WhyDidItHaveToBeSnakes Why Did It Have to Be Ghosts?]]

!Ken Hoshikawa

AKA '''[[color:blue:Five Blue]]'''. Second eldest of the Hoshikawa siblings and the closest Gaku could get for [[TheLancer friendly rival/second in command]]. He teaches physical education (swimming), making him the strongest fighter on the team.

* TheBigGuy
* TheLancer
* LeeroyJenkins: Instigates one in the second episode, which puts himself and his siblings in a pinch, until Gaku bails them out.
* MundaneMadeAwesome: Dodges like a [[VideoGame/FinalFantasyX Blitzball]] player.
* SignatureMove: ''Rolling Arrays''
* WeaponOfChoice
** ImprobableWeaponUser: Twin Arrays
*** BifurcatedWeapon: Twin Arrays + Power Grip = Twin Risbees.
** KillerYoYo: Twin Yo-Yos

!Fumiya Hoshikawa

AKA '''Five Black'''. The twin brother of Remi and the youngest of the Hoshikawa siblings. Eventually becomes a language teacher, which grants him a lot of linguistic abilities and the ability to understand alien languages.

* KidAppealCharacter
* KnifeNut: Two of them; Power Cutter and Cutter Discs.
** BifurcatedWeapon: Power Cutter + Power Grip = Black Jaw.
* SignatureMove: ''Screw Cutter''
* TheSmartGuy: The go-guy to moonspeak with aliens.

!Kazumi Hoshikawa

AKA '''[[color:fuchsia:Five Pink]]'''. Third-born and oldest daughter of the Hoshikawa Family. Has a computer-like brain which enables her to quickly analyze enemy weakness. This kind-hearted woman is a math teacher too.

* CoolSword: Cutie Circle
** BifurcatedWeapon: Cutie Circle + Power Grip = [[ImprobableWeaponUser Circle Putter]].
* DespairEventHorizon: Which caused her to defect, but turns out that she's a...
* FakeDefector: She defects just to trick the monster into reviving a dead Gaku.
* GoodWithNumbers: A Math teacher, and all.
* TheHeart
* SignatureMove: ''Circle Finish''
* [[TheSmartGuy The Smart Girl]]: See GoodWithNumbers.
* TeamMom: Sometimes, even when she's got two big brothers.
* TomboyAndGirlyGirl: Girly Girl to Remi's Tomboy.

!Remi Hoshikawa

[[quoteright:239:http://static.tvtropes.org/pmwiki/pub/images/fiveyellow_4331.jpg]]

AKA '''[[color:gold:Five Yellow]]'''. The fourth-born and the older twin sister of Fumiya. She teaches music, but is the bonafide ActionGirl. Knows Kung Fu and would teach children those in spare time.

* AnimeChineseGirl: Occasionally wears this kind of look since she utilizes Kung Fu.
* TheChick: Of the ActionGirl variety.
* DrunkenMaster: Once mastered the Drunken Fist.
* SignatureMove: ''Tact Attack''
* TomboyAndGirlyGirl: Tomboy to Kazumi's Girly Girl.
* WhipItGood: Melody Tact
** BifurcatedWeapon: Melody Tact + Power Grip = [[ImprobableWeaponUser Yellow Flute]].

'''Allies'''
!Arthur G6
* NonHumanSidekick
* PromotionToParent
* RicaMatsumoto

'''Zone Empire'''
!Empress Meadow
* BigBad: Subverted. [[spoiler:It turns out the real Empress Meadow died years ago and that the Empress Meadow who has been giving orders to Zone is an illusion created by Vulgyre.]]

!Captain Galois
* BadassMustache
* TheCaptain
* TheDragon
* LawOfChromaticSuperiority
* GoodScarsEvilScars: Gaku gave him one years before the series, which established his rivalry with [=FiveRed=].
* VillainDecay: Once a genuine threat, but after a few failures and Chevalier's appearance, he decayed ''so much'' that he becomes a bumbling comic relief villain and demoted to janitor. He did restore his decay in the last arc, though.

!Doldora
* BlingOfWar
* DarkActionGirl
* TheEvilGenius
* MadScientist

!Billion
* MasterSwordsman
* TheBrute

!Saza/[[SpellMyNameWithAnS Zaza]]
* DarkChick
* EvilCounterpart: To Remi.
* KnifeNut

!Dongoros
* ButtMonkey
* {{Greed}}: He really ''loves'' money...
* KarmicDeath: [[spoiler: Which leads to getting him crushed by it.]]
* TeamPet

!Chevalier
* {{Bishonen}}: Even Remi and Kazumi were charmed by his good looks. And yes, that includes Doldora and Zaza.
* DragonAscendant

![[spoiler:Vulgyre]]
* [[spoiler:BigBad]]
* [[spoiler:Expy: Hm, a living being disguised as something people can travel on who destroys planets and manipulates followers? Hey, we have another [[Series/DengekiSentaiChangeman Bazoo!]]]]
* [[spoiler:TheManBehindTheMan: Subverted and played straight; he's both the Man and the Man Behind the Man.]]
* [[spoiler:ManipulativeBastard]]
* [[spoiler:OneWingedAngel: Galactic Super Beast Vulgyre]]
* WalkingSpoiler
* [[spoiler:WeaksauceWeakness: He's weak to a specific flower.]]