[[folder:The Iron Tribe (Humans)]]
-->Voiced by: Hiroshi Yazaki (JP), Creator/JMichaelTatum (EN)

The protagonist of the series, Age is a young man raised by the Golden Tribe, who lived on the desolate planet Oron. His Nodos form, Bellcross, is the most powerful Heroic Tribe member remaining.
* BadassAdorable
* BatmanCanBreatheInSpace: A benefit of being a Nodos.
* BlueIsHeroic: Bellcross is blue and has a blue aura.
* TheDreaded: The Silver Tribe is a little fearful of him, due to him giving humanity the weapon they need to finally start winning some battles against the former. And just about every attempt they make at stopping him fails.
* InnocentBlueEyes: Age is as innocent and adorable as his blue eyes are.
* LightningBruiser: Bellcross is strong, but very fast when he needs to be.
* MadeOfDiamond: Ties in with Bellcross's "existence" power: there's very little in the series that can harm him.
* MegatonPunch: Bellcross's preferred form of attack.
* MessianicArchetype: In fact, he's the only man who is able to be physically close to Dhianeila without her collapsing, presumably due to his innocence.
* NiceGuy: He's quite a friendly person, and even befriends several of the antagonists as the show progresses.
* PersonOfMassDestruction: Bellcross can destroy quite a few ships on his own as the Bronze and Silver tribes find out the hard way.
* StayingAlive: Bellcross has the power of "existence", meaning that he simply can't be killed. At one point, Lecty/Erymanthos tries using her time travel powers to find a timeline in which he dies -- and fails ''20,000 times''.
* ThirdPersonPerson: In Japanese.
* UnstoppableRage: He can be prone to this in the heat of battle, though fortunately Dhianeila is able to bring him back to his senses anytime he does veer into this territory.
* WaifProphet: He's a lot wiser than he initially appears, since he was raised by none other than the Golden Tribe.
* WildChild: He doesn't understand much of manners or societal rules.

!!Dhianeila Y Leisha Altoria Ol Yunos
-->Voiced by: Creator/YuiIshikawa (JP), Creator/CaitlinGlass (EN)

The Princess and leader of the Iron Tribe. She has considerable psychic abilities, but her inherent telepathy has made her extremely sensitive to other people's thoughts, as such she is usually isolated and attended only by her handmaidens.
* AstralProjection: One of her abilities. Due to her sensitivity, she usually uses it to communicate with others without being physically present.
* BigGood
* HairOfGoldHeartOfGold
* InnocentBlueEyes
* OfficialCouple: Implied with Age.
* TheOjou
* ReasonableAuthorityFigure: Unlike her brothers, people actually like her because she doesn't force people into life or death situations.
* {{Telepathy}}: Very powerful telepathy, on par with that of the Silver Tribe.
* WomanInWhite

!!Mobeedo Oz Mehelim
-->Voiced by: Takashi Matsuyama (JP), Creator/RBruceElliott (EN)

The commander of the ''Argonaut''. Father of Iolaous and the twins.
* TheCaptain
* CoolOldGuy
* ReasonableAuthorityFigure

!!Iolaous Oz Mehelim
-->Voiced by: Creator/TakashiKondo (JP), Creator/JoelMcDonald (EN)

Head of the Yunos Knights, and son of the ''Argonaut'''s captain. He has minor psychic powers in the form of {{Teleportation}}. He harbors a crush on Dhianeila, and is often disapproving of Age's less serious antics.
* AlwaysSomeoneBetter: Feels this way about Age, because with his arrival he takes over the frontlines while Iolaous and the rest of the crew have become back-up. And there's the fact that Dhianeila pays more attention to him and falls in love with him.
* TheComicallySerious: His usual role when interacting with Age.
* StalkerWithACrush: His crush on Dhianeila can get a mite creepy at times.
* {{Teleportation}}: Which he uses to [[WeaponizedTeleportation great effect in battle]].

!!Aneasha Ol Megarla
-->Voiced by: Creator/KaoriShimizu (JP), Creator/LuciChristian (EN)

An attendant to Princess Dhianeila, and the head of the ''Argonaut'''s medical staff.
* BetaCouple: Implied between her and Iolaous.
* TheMedic

!!Tail Ol Mehelim and Mail Al Mehelim
-->Voiced by: Creator/YukariTamura (Tail, JP), Creator/RieKugimiya (Mail, JP), Creator/MonicaRial (Both, EN)

A pair of identical twin Mecha pilots, and attendants to Princess Dhianeila. Daughters of the ''Argonaut'''s captain, and possess telekinetic abilities.
* BarrierWarrior: They can create barriers to trap their enemies. Doesn't work so well on Nodos, though.
* MindOverMatter
* SingleMindedTwins
* TalkingToHerself: Only in the English dub.
* WonderTwinPowers: Their telekinesis appears stronger if they work together.

!!Nilval Nephew
-->Voiced by: Creator/{{Yukana}} (JP), Creator/ColleenClinkenbeard (EN)

And old friend of Mobeedo and commander of one of the Iron Tribe's fleets.
* GagBoobs: Easily the largest in the series.
* ReasonableAuthorityFigure: Provides some contrast to those idiot princes.

!!Meleagros E Leisha Altria Oz Yunos and Atalantes Az Yunos
-->Meleagros voiced by: Creator/DaisukeKishio (JPN), Creator/EricVale (EN)
-->Atalantes voiced by: Creator/HiroyukiYoshino (JPN), Creator/JoshGrelle (EN)

Dhianeila's elder brothers, the first and second princes of the royal family. They are very concerned with their own political gain and have dreams of winning glory in battle against the Silver Tribe. Unfortunately, they have no grasp of military strategy and are utter cowards when things don't go their way.

* AttackAttackAttack: The only "strategy" they really know. The Silver Tribe takes advantage of this repeatedly to lure human fleets into traps.
* GeneralFailure: Almost all of their military successes is due to Age and Dhianeila. Without them, they are pretty worthless in combat.
* GloryHound: Pretty much their defining character trait.
* KarmaHoudini: What do they get after all the trouble and death they cause throughout the show? A cushy job with a fair amount of power (albeit subordinate to Dhianeila).
* RoyalsWhoActuallyDoSomething: Although most people wish they ''wouldn't''.
* TheAllSolvingHammer: Atalantes in particular is rather fond of using the ''Althea'''s main gun on their problems.
* WeHaveReserves: Another reason their subordinates don't particularly like them. When deciding to [[spoiler: ignite a fusion reaction in Jupiter's atmosphere,]] Nilval points out that ''their'' fleet will be damaged as well. Atalantes's response is a nonchalant "Some losses are inevitable."

[[folder:The Silver Tribe]]
!!Phaetho O
-->Voiced by: Creator/YoshinoriFujita (JP), Creator/RobertMcCollum (EN)

A Silver Tribesman who encounters the ''Argonaut'' as it finds Age and Bellcross. His repeated failures to destroy the ship cause him to become obsessed with taking it down.
* BatmanCanBreatheInSpace: Demonstrates the ability to survive hard vacuum for at least a few minutes.
* EmotionSuppression: Fails at this after Dhianeila telepathically attacks him once to prevent him from destroying the ''Argonaut'', which manages to affect him for the rest of the series.

!!Rome Ro
-->Voiced by: Creator/SusumuChiba (JP), Creator/VicMignogna (EN)

One of the ideological leaders of the Silver Tribe, and the main proponent of the war against the Iron Tribe. He is in charge of the Silver Tribe's Nodos.
* BigBad: Or at least, the closest the series has to one.
* HaveYouSeenMyGod: His main motivation is trying to understand why the Golden Tribe left.

!!Prome O
-->Voiced by: Creator/RinaSato (JP), Creator/LydiaMackay (EN)

Another leader of the Silver Tribe, she is highly philosophical and greatly respected by her race. Throughout the series she ponders the Golden Tribe's intentions and what exactly is the meaning of the war with the Iron Tribe in that context.
* RapunzelHair: Unlike Yuty though, she ties it back.
* ReasonableAuthorityFigure: She is far more willing to consider alternatives to the war than most others of the Tribe.

!!Yuty La/Cervius
-->Voiced by: Creator/AmiKoshimizu (JP), Creator/CheramiLeigh (EN)

The Silver Tribe's Nodos, a cold girl who is dedicated to her duty. Her Nodos, Cervius, possesses one of the Heroic Tribe's most destructive powers, and she is considered the Silver Tribe's final ace in the hole.
* BatmanCanBreatheInSpace: May be an inherent trait of the Silver Tribe, rather than a Nodos-granted ability like the others.
* PersonOfMassDestruction: Like all the Nodos.
* PowerOfTheVoid: She can summon vortices that suck anything they touch into an inescapable void.
* RapunzelHair: Longer than she is tall by quite a noticeable amount, and it is always dragging on the ground. How on Earth she keeps it clean is a mystery.
* UnstoppableRage: [[spoiler:The "death" of Karkinos ''really'' pushes her over the edge.]]
* WhatIsThisThingYouCallLove: She struggles with understanding her feelings toward Karkinos for most of the series.

[[folder:Other Nodos]]
!!Karkinos Rucan/Lernaea
-->Voiced by: Masayuki Kato (JP), Creator/ChristopherSabat (EN)

One of the Nodos under the dominion of the Silver Tribe. Karkinos is a calm man who prefers dialogue to battle, and has a close relationship with Yuty La.
* BatmanCanBreatheInSpace: Like all Nodos.
* DeclarationOfProtection: For Yuty.
* HealingFactor: Just as Lernaea's gas can be used to kill things, it can also be used to heal things.
* OneWingedAngel: Lernaea can turn into a giant hydra.
* PoisonousPerson: one of Lernaea's powers is to project an extremely corrosive gas that kills anything it touches, and can even harm Bellcross.

!!Mehitak Pore/Artemia
-->Voiced by: Creator/ChihiroSuzuki (JP), Creator/GregAyres (EN)

One of the Nodos under the dominion of the Silver Tribe. Mehitak hates fighting and only serves the Silver Tribe under threat of his own people being wiped out.
* ActualPacifist: Unfortunately, he is a Nodos, and the Silver Tribe is willing to go to lengths to get him to fight. [[spoiler:After his HeelFaceTurn, he finds a reason to fight and aims to end the conflict.]]
* BaldOfEvil: Subverted. He's on the Silvers' side, but he's a sensible and peaceful guy.
* BatmanCanBreatheInSpace: Like all Nodos.
* BizarreAlienBiology: He and his entire Tribe do not eat anything with life, including fruit/vegetable plants. PlayedForLaughs when he breaks a shovel in half and eats it.
* [[spoiler:DefeatMeansFriendship: He sides with the Iron Tribe after being defeated by Bellcross.]]
* [[spoiler:HeelFaceTurn]]
* LightEmUp
* LightningBruiser: Noted to be the fastest Nodos, despite his enormous raw power.
* SparklingStreamOfTears: Whenever he's forced to fight.
* WaveMotionGun: The usual tactic Artemia employs in battle.

!!Lecty Leque/Erymanthos
-->Voiced by: Creator/MiyukiSawashiro (JP), Creator/StephanieYoung (EN)

One of the Nodos under the dominion of the Silver Tribe. She usually does not partake in combat directly, preferring to meddle in the timestream to affect the outcome of battles.
* BatmanCanBreatheInSpace: Like all Nodos.
* SaveScumming: Her time travel powers essentially work like this.
* TimeTravel