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Master Spectra, wake up! Did you know Earth has juice in boxes?!

Gus Grav (ガス・グラヴ, Gasu Guravu?) is the right-hand man of Spectra Phantom and a former member of the Vexos organization, until he and his master Spectra betrayed them and been labelled as traitors. He is a Subterra Brawler and is powerful in battle. He used Hexados as a Trap Bakugan and teamed up with the Subterra Rex Vulcan. He was presumed to have died while battling against King Zenoheld. In episode 42, Spectra states that Gus disappeared without a trace, but in episode 49, however, Gus was shown in a prison cell along with Hydron. He tricked Hydron into helping him escape to join Spectra in the final battle against Zenoheld. He and Vulcan later fought in the final battle against Mag Mel and his Chaos Bakugan.


Gus has long, wavy blue hair and green eyes. He has an orange jacket denoting his status as a Subterra brawler, and wears standard Vestal attire underneath. He has tall brown boots and black fingerless gloves.


Gus is a strong brawler and faithful to Spectra, believing that Spectra has the answer to all that has been happening and is willing to follow him no matter what. Gus also tries to look out for Spectra whenever possible; when Spectra decided to bring Mira to the Vexos, as he thought that this plan would backfire on them, which it did.

He revealed that he used to be a normal brawler, and even faced off against Spectra. After losing, however, he pledged his loyalty. He is shown animosity from other Vexos battlers, namely Lync and Mylene, as "Spectra's little pet" and "Spectra's little lapdog." Mira introduces him to Dan as a "weasel, but the top Subterra brawler and a tough opponent." He hates Earth and Prince Hydron, but is fascinated by products on Earth, most notoriously "juice in a box". He calls Apollonir an "old thing" and a "hand me down Bakugan". After entering the mother palace with Spectra, he called Zenoheld an "old man" and an old fool.



Gus used to be a brawler fighting on his own, and one that was a force to be reckoned with. In a tournament in Alpha City one day, however, he fought with and lost against Spectra Phantom and his Helios After this fight, Spectra asked him to join his forces and help improve the world's state, which Gus agreed.


Bakugan Battle Brawlers: New Vestroia

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Gus first appeared alongside the other Vexos, watching the Bakugan be captured. He is later shown in Facing Ace talking to Hydron with the Vexos about the powerful Drago with the prince ordering the Vexos to capture Drago by any means necessary.

In Taste of Defeat, Gus later calls the Vexos to a meeting to tell them they have all failed. This angers Shadow Prove, who calls Gus a freak. After lots of arguing, Spectra lets Gus go to fight the Resistance. Gus goes out to defeat Dan Kuso after the other members have failed to do so. Once Gus locates Dan, he uses psychological warfare to cause Dan to doubt himself and his actions. He later reports to Spectra telling him Dan is nothing but a child. Spectra tells him not to underestimate him for Dan could be a strong foe. After Gus reveals his identity, he defeats Dan in a brawl due to Vulcans power. Spectra congratulates Gus on his victory, much to the other's jealousy. Despite this, Hydron remains unhappy due to not having Drago, so Gus deicides to battle Dan again to get Drago and make Spectra proud.

In Return of a Friend, Gus sends a message to Dan via hologram, challenging him to a rematch. Dan sneaks away for a rematch with Gus, only to discover that Spectra would also participate in the battle due to being interested in Drago's Power. This caused Dan to struggle until Shun Kazami came to his rescue, Shun defeating Gus while Dan conquered Spectra with a new ability due to Viper Helios taunting Drago about Blade Tigrerra's loss. After the two Vexos lost, Spectra tells Gus to retreat for now.

In What's the Plan? he appears with the Vexos as a superstar where he is known as the Relentless Gus. After the show is over, he asks the guards what they have to report. They say fans snuck backstage causing Spectra to be suspicious. Gus checks but the Resistance escapes before he found them.

In Surprise Visitor He and Spectra are showing talking to Clay Fermin about Gate cards falling from the sky. Clay says that someone is trying to get into the human world. They find out it is Runo Misaki trying to enter New Vestroia. While Shadow fights Marucho, Gus and Spectra hide near a rock, with Spectra saying that Gus doesn't need to head through the portal, but Gus insists otherwise. Spectra and Gus head to the portal to go to earth and are followed by Lync Volan reminding them that Prince Hydron had not given his consent for them to leave. Gus and Spectra ignore him, however, and go through it regardless.

In Gate Crashers, After the Vexos arrive on Earth, he annoys Gus to the point that Gus challenges Lync to a brawl, but Baron and Mira intervene, causing Gus to run away with Mira in pursuit. Gus later tells Dan about Prince Hydron and how he is Dan's real villain. Spectra revealing that he is actually against Prince Hydron's rule and wants to team up with Dan to take him down. In a show of goodwill, he released Runo. Mira's suspicion of Spectra being her brother Keith only rose because of this action, as she believed that he infiltrated the Vexos to free the Bakugan. However, it is learned that Spectra and Gus only wanted to take down Hydron so that Spectra could succeed in the role of the ruler of the Vestals. Meanwhile, Dan refused to believe Spectra's intentions, and Alice Gehabich soon warped in using Masquerade's warp card. She took Spectra, Gus, and Dan back to the lab, where Dr. Michael sent Spectra and Gus back to New Vestroia.

In Unmasked, Gus and Spectra have already made their way back to the brawlers' location, and are seen riding the Gondola Wheel in the amusement park. When Spectra and Gus came out they got the attention of many humans who thought they were a boy band causing Mira and Julie to chase them. Once Mira caught up with them Spectra explained that he wants to save the Bakugan and take Hydron down When Mira challenges Spectra in order to find out if he was her brother, Keith, Gus twists the deal so that he would brawl in Spectra's stead. If Gus lost, Spectra would unmask himself; if Gus won, Mira would join the Vexos. Gus had the advantage until Julie Makimoto, the "original" Subterra master, gave Mira tips on how to win. Although Gus urges Spectra not to reveal himself, Spectra ignores his pleads and does so anyways.

He is later seen living in a warehouse with Spectra in Show Me the Power!, He urges Spectra to battle against Dan on his master's side although Spectra declines saying it is a battle he must fight alone. After Dan challenges Spectra to get Drago back, Gus taunts him saying he won't win although is later proven wrong. However, Spectra did not seem to be angered at the loss, saying to Gus that he had collected all of the data he needed from Drago, which he later used to create Cyborg Helios. Spectra later convinced Mira to join the Vexos have Lync join them and had Gus trap Dan and the others in an electrical cage so they would not go back to New Vestroia. Unfortunately for Gus, they escaped and took Dr. Michael Gehabich's Dimension Portal.

Once the Resistance and the Vexos make it back to New Vestroia, Gus taunts Mylene Volt and Shadow saying how they used one of the Six Ancient Warriors to return although Volt Luster doesn't believe him. He and Spectra later overhear Lync's conversation with Hydron and smirk at their plans for the future of overthrowing the Prince. He Volt, and Lync later watches Mylene and Shadow battle Dan and Baron Leltoy. When Gus starts explaining about Shield cocoon Lync taunts him asking if Gus was full of fascinating facts. When Nemus gets taken down by Hades Gus gets surprised. After Mylene and Shadow lost, Gus says she lost so she shouldn't be blaming Spectra. Gus keeps a close watch on Mira, as he doesn't trust her and lets Spectra know telling her a lot of their plan was unwise. Once the brawlers get to Gamma City, Dan, and Ace Grit face off against Gus and Mira. Spectra beforehand had Gus and Mira take the Bakugan that were being developed for Prince Hydron to test for himself. Gus gets worried thinking Mira might mess up, but Spectra tells him he knows Mira won't let them down. However, due to Mira purposely throwing the match, Gus and Mira lose, all six of the Bakugan are captured, and the last Dimension Controller is destroyed. Gus reports the loss to Spectra who has plans of his own for Mira.

In Final Countdown, Gus then overhears the other Vexos planning on betraying Spectra and taking Professor Clay with them. Gus goes to Lync, having him go to Spectra for him thinking Lync is still on their side, Lync double-crosses him, knocking him out and locking him up in a room.

Later, when Spectra is brawling Dan, Gus finds Elico and Mega Brontes, only to be "thrown out like the trash" by Mylene Farrow because she does not think that it is wise to have a weapon with feelings. Gus then rides Premo Vulcan and saves Spectra after his fight with Dan. He also regrets to inform him that Mylene is intending to blame the whole thing on him. Spectra informs him that he did not care and was not planning to return to Vestal anyway. He and Spectra then fled to a distant part of the dimension to plan for their next move. He and Spectra are both labelled as traitors by the Vexos after leaving them for dead.

Arc 2

In Spectra Rises, he had betrayed the Vexos and works with Spectra. He has also made Premo Vulcan, Mega Brontes and Elico evolve due to Chaos Ability X. He also taunts Volt saying that Brontes lost his soul while Spectra fights Dan, Mira, and Marucho.

In Shadow Attack he helps Spectra set up a network for him to appear on Tv where he announces that he is trying to stop Zenoheld.

In Brontes' Betrayal, Volt calls him asking Gus to battle him for Alto Brontes. Spectra tells Gus he should battle Volt since he might join them if he wants Brontes badly enough. Him and Volt meet up and battle in the same area where Zenoheld fought the Ancient Solders, with Volt using his new Bakugan, Boriates. Though Volt proves to be a match for him by beating Hexados, his opponent becomes outmatched by Brontes power. During the battle, he asked Volt why he pretended to be fighting for Brontes' life given his association with Zenoheld and his quest to find the Attribute Energies to power the BT System. He offers Volt to join him and Spectra saying they could use someone with his ability, but the Vexos declines saying he is not a trader. Volt loses after Gus uses a combination of the Gate Card Land Pressure and Brontes's new ability Trance Rapture Illusion. Gus looks at Volt beaten and saying he does not understand his motives. He then returned to Spectra and telling him that he was unsuccessful in getting Volt to join them. He then throws Brontes back into New Vestroia saying that, "You have served your purpose, but now I am done with you".

In All Or Nothing he lets Spectra know that the Vexos have found the Brawlers location and are going after the remaining attribute energies. Spectra, however, sees this as a good thing and has Gus send Dan to his ship where the two of them battle. After Dan defeats Spectra in a battle, Spectra and Gus agree to accompany the Resistance to the Vexos' palace. Spectra then goes to the command bridge and talks to Gus about an anonymous source that gave him information. He reveals shortly that by using data on Bakugan evolution, he planned to bring out even further power from within the Bakugan.

In Avenging Spectra, Spectra and Gus arrive on the Mother Palace along with the Resistance and confront the Vexos. He then challenges Zenoheld after the Vexos insult and accuse Spectra. He loses at the end of the episode, and he presumably lost his life, along with Rex Vulcan. Blast Elico and Hexados however actually died trying to protect him and Vulcan. His last words were to Spectra and wishing him fare well. In the end he apparently learned what Dan had tried to tell him from their first encounter about how much friendship matters because when King Zenoheld told him their battle would cost him everything Gus laughed and said: "No matter what happens you'll never take away the bond of loyalty and friendship that I share with Master Spectra!" and he was greatly upset when Blast Elico and Hexados were destroyed and when Rex Vulcan's armor was cracked, not to mention he apparently grew a giant bond of friendship with Vulcan in the end of the episode. Rex Vulcan and Gus are still alive but in Zenoheld's jail.

At the end of An Heir To Spare, it is revealed that Gus and Vulcan, survived the battle with Zenoheld and has been imprisoned since then. His cell was located across from Prince Hydron's, and he manages to overhear Hydron vowing to bring down his father.

In Ultimate Weapon, he tricks Hydron into starting a brawl inside the cells and breaking the cells. Gus rejoins Spectra to help fight against King Zenoheld and Farbros. The two do well together, but when Zenoheld merges with the Alternative Weapon System things look grim for them.

In All for One, he watches the arrival of the Bakugan Battle Brawlers. When Spectra says that they are on the same side now, Gus says that he never thought he would live to see the day that they joined forces, but at the same time he was glad that they did, since he was almost killed by Zenoheld.

In Final Fury, he fights the Pyrus Fortresses to give the brawlers time to get into the Alternative. Just as he was about to go down, Hydron saved him and he evacuated with the other brawlers. After the Alternative explodes, he joins the Resistance, says farewell to them, and returns to Vestal with Spectra.

Bakugan: Mechtanium Surge


He reappears in Dark Moon operating the Vestal Destroyer while Spectra was battling the Chaos Bakugan. He also sent Doomtronic to Spectra and Blasterate to Shun and Paige.

He appeared in The Final Takedown battling the Chaos Bakugan and using Rex Vulcan. He and Spectra beat them all while the rest of the Brawlers (minus Dan) beat the Razen Titans. Once the world is saved, he is seen congratulating Dan and Drago then and returns to Vestal with Spectra for good.



Bakugan Battle Brawlers: New Vestroia

Bakugan: Mechtanium Surge


  • Gus's hair long wavy hairstyle resembles to the hairstyle of Michiru Satomi from Cartoon Network's Immortal Grand Prix/IGPX.
  • He and his master Spectra Phantom are the only two brawlers in New Vestroia to use more than one attribute (excluding Maxus pieces).
  • Gus is the only Subterra Brawler seen to battle head-on and win against Dan Kuso in a brawl.
  • Gus Grav is similar in appearance to Hikaru Hazama's mother in Beyblade: Metal Fusion Series.
  • Gus also strongly resembles Tobias from Pokemon DP: Sinnoh League Victors.
  • He also reassembles Pierce from Pokémon the Series: Black and White.
  • He has another similarity Shindou Takuto from Inazuma Eleven GO.
  • Mason Brown sounds like him at times despite the fact that they have different voice actors.
  • Gus's outfit color changed throughout the series. At first it was dark orange and later, it was light orange.
  • Despite being the number 2 Brawler in the Vexos he only won a total of four times in the seasons and had more losses.
  • Dan was the only member of the Resistance that he was able to beat.
  • He and Mira Fermin have two things in common: they both battle with a Subterra attribute and they are both always worried about Keith/Spectra.
  • In episode 33, on the Intermission Screen, Gus and Alto Brontes appeared as Gus was using him in the battle with Volt. However, the Subterra attribute symbol was highlighted despite the fact Alto Brontes was a Haos Bakugan. This is most likely because Gus mainly uses the Subterra attribute.
  • Despite joining the Brawlers, he is not featured in the Japanese Special Ending of episode 52.
  • He is referred to as Spectra's "lap dog" since he's so loyal to Spectra, and calls him "Master".
  • In the Japanese version of the 2nd episode of New Vestroia; Mira referred to Gus as "The Greatest Subterra Battler, the Desert Wolf Gus Grav. サブテラ最強のバトラ 砂漠の狼 ガス・グラヴ (Sabutera Saikyou no Battora, Sabaku no Ookami Gasu Gurabu).
  • Like Spectra, he changed his clothes in Mechtanium Surge. In New Vestroia, he had very light brown coat, and black, brown and white suit under it. In Mechtanium Surge, he had brown sweatshirt.
  • At first, Gus used "good", blue ability cards. When he joined Spectra, he changed them to red.



Bakugan Battle Brawlers: New Vestroia

Opponent(s) Episode(s) Outcome
Unknown Vestal Brawlers Offscreen Win
Spectra Phantom (Flashback) 5 Lose (due to opponents overwhelming power)
Dan Kuso 5 Win (due to opponents lack of power)
Dan Kuso and Shun Kazami (Tag with Spectra) 6 Lose (Shun Surprise attacked him)
Mira Fermin 12 Lose (due to Julie's help)
Dan Kuso and Ace Grit (Tag with Mira) 23 Lose (Mira lost on Purpose)
Volt Luster 33 Win (opponent held back)
Zenoheld 39 Lose
Zenoheld (Tag with Spectra) 50 No outcome (Zenoheld merges with the Alternative)
Zenoheld (Tag with The Resistance Spectra, and Hydron) 51-52 Win

Bakugan: Mechtanium Surge

Opponent(s) Episode(s) Outcome
Chaos Bakugan, Dreadeon Clones and Razen Titans (Tag with The Brawlers (except Dan), Team Anubias, and Team Sellon) 26 Win