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Grey Ikenami (Japanese Version: Grey Cossack (グレイ コサック Gurei Kosakku) is one of the playable characters in Mega Man ZX Advent. He is the Biomatch for Biometal Model A, but In the Battle Brawlers Saga, He was revived and recreated, Grey is the main protagonist of the anime series, He's a Darkus Battle Brawler, four following seasons: Reploids Advent, New Vestroia, Gundalian Invaders, and Mechtanium Surge.

He is partnered with a Darkus Leonidas named Leo (who eventually evolved into Hyperion Leonidas). After his actions in the first season, he has become a legend among brawlers from Earth, Vestal, Neathia, and Gundalia.

For the first two seasons, he lived in Wardington with his parents, Kendra Ikenami and his dead father Dave Ikenami and his Sister Haley Ikenami, near his friends Dan, Anto Kuso, Runo, Hikaru Misaki, Wynton, Marucho Marukura, Shun and Lina "Hamato" Kazami. He moved to Bayview in Gundalian Invaders, as did who became his neighbor and He moved to Planet Gundalia in of Gundalian Invaders in Special Ending, and now lives in the house with Lena Isis and her Mother.

He was the #1 Brawler in Bakugan Interspace until he was disqualified in a brawl against Anubias and Javier. He works with Lena in Bakugan City in Arc 2 of Mechtanium Surge, the Battle Brawlers Headquarters.

Bakugan: Grey Ikenami's Story

Team Grey


In Battle Brawlers, Grey has Spiky Silver hair and has Emerald eyes. He wears a indigo body suit with dark purple and crimson on his chest, with Black stylish jacket with blue design pockets while wearing Purple t-shirt, while wearing purple shorts for pants. He wears black boots sneakers with blue designs, while having orange wrist, he has a wires on his back and with his shoulder pads. His Baku-Pod is purple.

In his Gundalian Form DNA transfromation, Grey has gray skin, blue marks under their eyes with yellow bone/horn-like plates the covers the forehead and can grow all the way around the head, he also wears Blue and Black long sleave Shirt on the bone/horn-like plates on his belly, green pebble on his wire armor and the shoulder pads, he has a Imperial Order Symbol in Mechtanium Surge Arc 1 and he has a Chaos Army symbol in arc 2.


Grey is a 14 year old Reploid boy when he recreated in ZX Saga and who brave to speak for himself. But he’s known to be a nice person who likes to make friends, but never having the courage to do so. But when Grey battles in a Bakugan Battle, he can be quite determined to win ever since Dan taught him how to play when when Leonidas became his Guardian Bakugan. When it comes to conflicts and anger issues, Grey goes against this and will try to settle any conflicts, even if it means to involve himself in the mess.


Bakugan: Battle Brawlers[]

Grey is 14 years old, When He first appears within stasis in the Mysterious Lab, and is awakened by a battle between Galleons, not knowing who he was or anything about his world. His eyes turn back from red to green since the mind control sequence was stopped from becoming a Brawler that would fight alongside. a Ghost Pandora finds him and proclaims him as "Defective", explaining that she has to kill him. However, he grabs a gun from a fallen Hunter, fires on her, and escapes. He is knocked out after fighting Dogu the Giant when the bridge he is standing on collapses his gun is destroyed. He is later found by the Brawler named Dan Kuso, he thought he was a reploid, he was in the hospital in Wardington City, Grey Became a Darkus Battle Brawler.

In Grey and Leonidas, he is in the park, where Shuji and Akira accuse him of making fun of how they battle. When the Grey denies it, Shuji challenges him to a battle. The player is frightened as he doesn't know how to brawl. Suddenly, Dan Kuso appears and offers to teach Grey how to battle. After he beat Shuji, he tells Grey that he should wait until the next round for Shuji's real strength to be unleashed. As they run away, Shuji tells Akira he let Grey win.

Dan comments on how great the match was, and tells the Grey that if he gets stronger, he could even brawler mentioned earlier. However, without a Bakugan of his own, the Grey wonders how he can ever find anything like Drago. Suddenly, there is a strange flash, and a Bakugan appears, who calls himself Darkus Leonidas. He agrees to be the Grey's Bakugan partner.

He admitted he didn't want Shun Kazami to join the team because of problems hes been having with him but after Shun helps Dan and Grey beat Masquaerade and Marduk and thier bakugans they weclomes him to the Bralwers.

He travels with them to Bakugan valley and faces Billy Gilbert, Riley O' Neil and Komba alongside Shun Kazami and Julie Makimoto eventully winning

He later tags with Dan, Runo and Wynton to battle Julio Santana after she follows Marucho to get Preyas back. Tentaclear proves to be a tough oppontent but Drago, Leo, Sharktor and Tigrrera emerge the winners.

Dan and Shun later have a falling out with the former telling Shun to get lost. Dan and Grey at first doesn't care but eventully learns his lesson and finds Shun who just beat Komba O'Charlie. Dan and Grey apologies and Shun rejoins the team.

During his test with Exedra, he brawls against a Grim Reaper on the moon. He wins by using a Fusion Ability Card, O-Strike Extreme. When Leo doesn't evolve like the others, he is told that he needs to defeat all of his friends in order for Drago and Leo to evolve. He and Dan defeats Julie Hammer Gorem, Marucho and Preyas and Preyas II, although he hesitates because he doesn't want her to fall off Gorem. He then defeats Wynton, Hikaru, Drill Robardso and Hydro Sharktor. While he planned on defeating Shun and Haley next, Blade Tigrerra and Hurricane Monico requested that she and Runo and Lina brawl first, which he and Dan accepted and won. Finally, he battled Shun, Anto and Haley. Drago and Leo evolved after Grey and Dan won.

After Drago and Leo finally evolved, Masquerade and Marduk sent a battle request to Joe Brown for the Infinity Core, only to have Dan and Grey come to battle in his place. Alpha Hydranoid and Battle Sword Vladitor, Leo, now an Extreme Leonidas and Drago, now an Ultimate Dragonoid, finally brawl. He wins and finds out that Masquerade was actually a secondary personality created within Alice Gehabich, and Marduk disappear one of the Battle Brawlers.

When the Brawlers went to Vestroia, Dan and Grey caught the eye of the Bakugan hybrids Tricloid and Rabeeder, which started to freak them out. He was given a clay heart by Tricloid, which actually turned out to be a key to allow Dan, Grey, Leo and Drago access into the world of Pyrus and Darkus. When in the Pyrus-Darkus world, He, Dan, Leo and Drago fought the Pyrus-Darkus hybrids Druman and Centorrior. They were saved by Nova Lion, an elderly Pyrus Tigrerra. He then decides to take them to the center of the universe. They were stopped by the hybrids again and beat them, however Nova Lion died. Dan and Grey then wishes Nova Lion was back during another battle with the hybrids, but somehow, Alice overheard him, but didn't know who he was talking about Alice then decided to become Masquerade one more time to save them, which she does, and thanks to Masquerade's plan, the hybrid Bakugan are defeated, Marduk was given a Battle Sword Vladitor to Grey for his 2nd Gaurdain Bakugan.

After returning to earth He faces Druman and Centorior in a rematch with help from Runo and Lina. The two strugle until Wynton, Hikaru, Anto, Haley, Marucho, Klaus, Juile, Billy, Riley, Declan, Winston, Reggie, Irina, Kai and Komba arrive to help.

Although constantly arguing with each other, Grey was ranked #1 and Dan was ranked #2 for beating Hal-G and Silent Naga, but don't confess until the end of the series, where he is seen going on a movie date together. Also, during this date, both Grey, Dan, Julie and Runo seem to have changed clothes. After seeing Drago and Leo in Spirit Form telling them to take care of themself, they says: "Everything was Excellent" while doing his signature saulted.

Bakugan 2: Reploids Advent[]

In Bakugan: Reploids Advent, Grey is still 15 years old, After 1 month later when Hal-G and Naga are defeated.

Bakugan 3: New Vestroia[]

In Bakugan Battle Brawlers: New Vestroia, Grey, now 17 years old, is reunited with Leo, who was separated from the Perfect Core with the help of the Legendary Soldiers of Vestroia. Leo took him and unknown to their knowledge, Wynton and Dan, to New Vestroia, where they were found by Mira Fermin, Dillon Phan and battled two members of the Vexos, Volt Luster, Andre Sander, Don Waters and Lync Volan.

After they won, he and Wynton and Dan were taken back to the Resistance's base to meet Ace Grit, May Crone, Ari Taylor and Baron Leltoy. While Mira and Baron were accepting of him, They wanted him to prove himself in a brawl, which ended in a draw. He agreed to help the Resistance free the Bakugan by destroying all the Dimension Controllers that are keeping the Bakugan in their ball forms.

Later he helps Baron get his confidence back be teaching him about Brawling and trying to find Wynton when he goes missing.

In episode 5, he received a Trap Bakugan, Darkus Pythantus, from Mira. Dan and Grey later brawls Gus Grav and Eva Sync and easily loses.

Grey, Dan and Eva, Gus had a rematch which Spectra Phantom, Wade Lynch and Shun joined. Dan used a perfect core ability and defeated Spectra and Gus in a brawl along with Shun.

While in Aplha city Grey helped destroy the detention controller by using Leo to hit the controller Grey, along with Mira, May, Dillon and Baron, followed Runo as well as Gus Lync and Spectra. into the dimensional gate to Earth. Once they arrive Spectra takes Runo as his hostage and offering Grey an ultimatum: join the Vexos or risk Runo's safety. The Brawlers split up to pursue their foes, Spectra and Wade revealing that he is actually against Prince Hydron and Princess Nalia's rule and wants to team up with Dan and Grey to take him down. In a show of good will, he released Runo. Meanwhile, Grey and Dan refused to believe Spectra's intentions, and Alice soon warped in using Masquerade's warp card. She took Spectra, Wade, Gus, Eva and Dan and Grey back to the lab, where Dr. Michael sent Spectra and Gus back to New Vestroia. Unfortunately, the transporter needed to be repaired before another trip could be made. Grey was give Runo a Haos Wolfunoid and Julie got a Subterra Dyrex. This left Spectra, Gus, Don, Lync, Mira, Dillon, May and Baron trapped on Earth. Since then he has been worrying for Ace, Ari, Shun and Wynton, who were being captured by the Vexos.

He is challenged by Spectra while on Earth and agrees to battle with him. However, Spectra acquires Leo and Drago when he used a Forbidden Ability Card to boost Helios' strength. Grey and Dan trains in hopes of winning back Drago and Leo, and talks to the Legendary Warrior of Vestroia, Exedra, and they successfully defeat Spectra, restore Leo back to normal, and win Leo and Drago back. Mira however betrays them saying she wants to be with her brother which is Spectra. When they get back to New Vestroia, Dan, Grey, May and Baron face Mylene Farrow and Shadow Prove in Beta City and smashed the Dimension Controller there. When Dan tells Ace and Ari that Mira left them, the later Grey grabs Dan by the shirt.

He destroys the last Dimension Controller by beating Gus and Mira alongside Ace and Ari in Gamma City with the reward of Mira joining the team again, but when they try to get to Hydron's Palace, he activates another Dimension Controller, sending him, Baron and May, and Ace back down to the ground, where he is then challenged by Spectra. Spectra decided to use Maxus Helios, but Dan used Maxus Dragonoid and Maxus Leonidas to even the playing field although the brawl ended in a tie.

6 months later the brawlers get a visit from the Legendary Soldiers who lost their atrribute energies and gave them to the resistance Bakugan with this Leo evolves into Abyss Leonidas.

When he hears about the Vexos return by Ace, Ari, May Baron and Klaus he rushes to Vestel to stop them alongside Mira Dillon, Julie and Wynton. Later the 3 of them brawl Spectra with his new evolved Helios even though it is a long battle with Mira and Wynton getting eliminated he still beats Spectra.

After hearing about Shadows attack on Alice he and the Resistance Rush back to earth hoping to keep Runo and Juile safe. Runo later tells Grey that she cant believe he thinks that she isn't a good Bralwer, Grey gets a Alpha Hydranoid from Alice.

When Marucho, Wynton, Sharktor and Preyas sneak out to find Elfin, he is with Shun, Dan, Ari, Dillon, May, Ace and Baron sleeping through a romantic movie that Runo, Mira, Haley, Anto, Lina and Julie are watching.

When Spectra and Wade comes to earth to get the prefect core Dan and Grey defeats Spectra and Wade in a brawl, in which He and Dan agreed to give up the Perfect Core if he lost, while Spectra and Wade would take the Resistance to the Mother Palace if he lost. Dan and Grey wins, and Spectra and Wade agree to his terms. At the Mother Palace, Dan, Grey, Dillon and Mira fight Zenoheld and Hydron with Spectra helping his rival due to Gus loss however they lost to Zenoheld and drago lost his attribute energy and the BT system is full. So, Cross Dragonoid and Abyss Leonidas flies into the sky with the BT system and destroys it, Drago absorbing all of the attribute energies and becoming Helix Dragonoid and Leo absorbing all of the attribute energies and becoming Verum Leonidas.

Later he and the Restitance meet new unknown Bakugan which Baron and Mega Nemus brawl against but lose to

With the Vexos seemingly out of the way, Spectra and Wade challenges Dan and Grey to one last battle to see who is number one. It is a close battle, but Drago and Leo won by bending Helios's battle gear and defeating him. Helios MK2 then admitted his defeat to Drago; he was the ultimate Bakugan, and Spectra decide to give up his mask and work with the resistance as Mira's brother, Keith. Together Dan, Grey and Keith and Wade create a battle gear for Drago called JetKor and Leo called Giga Buster. Him and the brawlers learn about the Alternative thanks to Lync leaving behind evidence.

When the Alternative is complete, Dan, Grey and the other brawlers battle and destroy it. Dan used only Helix Dragonoid in this battle and Grey used only Verum Leonidas. Keith, Wade, Gus, Mira, Dillon, May, Ari, Ace and Baron return to Vestal, while Dan, Grey, Shun, Runo, Julie and Wynton head back to Earth. In the Japanese Ending of Episode 52, he is seen eating soup at Runo's family restaurant as Drago and Leo, Julie and Runo watch. Three weeks later, Bakugan Interspace is completely repaired. During this time, a Gundalian person named Ren Krawler appears, asking Grey, Dan, Wynton, Runo, Julie and Shun if they are the Bakugan Battle Brawlers.

Bakugan 4: Gundalian Invaders[]

In Bakugan: Gundalian Invaders, Grey is 18 years old.

After moving to Bayview, Grey and Dan befriends Jake Vallory and Lana Justice, the Battle Brawlers' Jake is a new Subterra brawler and Lana is a New Aquos Brawler. Dan and Grey brings Jake and Lana to Bakugan Interspace with Runo and Julie, and brawls against Ren and Anne Pearce, but the battle gets cut off when the power levels become too high for Bakugan Interspace. He and Wynton battle four "Neathians" (really Gundalian), Sid Arkale, Anya Kaiser, Lena Isis and Kavon Marrow. Wynton and Runo lost, but Dan Grey, Drago and Leo beat 4 of them with Drago's JetKor and Leo's Giga Buster. In their first encounter, Fabia Sheen and Almaz Vontana accidentally throws Dan and Grey. To see if he was the one who picked up her Phantom Data, Fabia brawls Dan and Almaz Battles Grey, and loses. Believing Ren and Anne's story about the Neathians attacking Gundalia, Grey and Dan tells Fabia and Almaz to leave and to stop using Bakugans for war. Angered by his ignorance, Fabia and Almaz throws Dan and Grey and leaves.

Later he is helping coach Jake who is having confidence problems.

Dan and Grey battles Sid, Anya, Wendy Harris and Zenet Surrow in a tag battle with Ren and Anne. Unknown to him, Ren lost on purpose, forcing Runo into a two-on-one brawl. When Julie and Jake is challenged by Jesse Glenn and Kate Jones, Fabia and Almaz returns to Bakugan Interspace and Fabia fights Jesse, but loses. Grey and Dan notices Fabia about to cry for her loss, But Almaz Feeling sympathy for her, He watching Dan challenges Jesse and to a fight, but Ren tries to dissuade them. Shun and Fabia then expose Ren and Anne as a Gundalian Agent, revealing that the Gundalians are the invaders, not the Neathians. Ren escapes, followed by Wynton between Neathia and Gundalia. Ren is found by Wynton and challenges him to a fight. However, Wynton defeats him and chooses to remain with the Brawlers. Grey, Runo, Julie and the Brawlers were challenged by Gundalians Mason Brown and Logan Cobert, Sid Arkale, and their new brainwashed brawlers Taylor, Harold, Nick, Allie, Henry and Casey. Grey, Dan, Shun and Runo had to battle Mason, Wendy, and Taylor while Wynton, Julie, Lana and Jake challenged Sid, Anya and Casey. They won with their new, real versions of their digital Bakugan, Hawktor, Coredem, Sentanine, Taurus and Akwimos, but they were all tricked and sent out of Bakugan Interspace when Ren hacked into the system and forced the brawlers out, causing Bakugan Interspace to be under Ren's control.

Dan and Grey faced off against Sein Pam and Lewin Pam and won. After 2 Neo Ziperator is taken by Jesse and Anya, Grey and Dan promises Linus Claude that he will rescue him. When they break into Interspace, they are lead into an arena by Sid and Ayna challenged to a battle. Dan is easily doing well but then Sid and Anya brings out 2 Neos. However, 2 Neos gives Drago and Leo The Element, knowing he will protect it better. This caused Drago to evolve into Lumino Dragonoid and Leo to evolve into Oblivion Leonidas, giving them great powers to win the battle, Grey received the Gundalian DNA transformation by Code Eve. Drago and Leo stated that he could feel in tap with the universe during the battle. Leo and Drago later battled and defeat Zenet and Kate.

Grey and the other Brawlers follow Fabia and Almaz back to Neathia. He meets Fabia's sister, Queen Serena, and allies with the Neathians. Fabia then shows the Brawlers the Sacred Orb, the item that the Gundalians are after. Soon after, they receive a report that the Gundalians are attacking. Grey and Dan ends up battling Emperor Barodius, Dragan. Dharak and Dragion, but just as Drago, Leo, Dharak and Dragion were about to attack each other, the Sacred Orb sends all of the Gundalians back to Gundalia. After the battle, he and the other Brawlers are awarded the position of Castle Knights.

Grey, Dan, Shun, Runo, Julie Almaz, and Fabia are traveling through the jungle while coming across a few obstacles. A while later, Stoica, Jakku, Brandon and Jesse appear to stop the Brawlers. Before they battle, Shun and Runo escapes while Almaz, Fabia, Julie, Grey and Dan battle. Fabia fights most of the battle while Grey and Dan is silent. Stoica and Jakku later figures out that before the battle, Dan, Grey Runo, and Shun switched their Bakugan, so Dan has Hawktor, Grey has Sentanine while Shun has Drago and Runo Has Leo. Dan proves himself a good Ventus brawler, Grey proves himself a good Haos Brawler, whose strategy revolves around beating down his opponent with swift, heavy attacks via his Ability Cards, and he, Julie and Fabia win the battle. Grey Battles Cipher and Logan with Lana. then He battle Unalak and Kate with Runo.

Heading towards the second shield generator, he arrives just in time to help out Runo and Shun, who was getting beaten badly by Lena and Kazarina. Dan, Grey, Runo and Shun then switched their Bakugan to their respective owners, and Dan and Grey took Shun and Runo's place in the battle, giving Shun enough time to activate the shield while Grey and Dan defeated Kazarina. They and the Neathians celebrate their victory as the Gundalians retreat. While doing construction, he tries to tell Jake that they need to rebuild so they can be ready. Later, Grey and Dan went and helped Runo and Shun in his battle against Zenet, and Gill, and won.

While trying to fight off against a group of hypnotized kids, Grey and Dan battles Koji with a Mobile Assault vehicle. Seeing that Dan was losing, Captain Elright gave him his own Assault vehicle, Raytheus, which Dan and Grey uses to defeat Koji. After fighting enemies with Raytheus, Grey and Dan is confronted by Ren and Anne. They asks Ren and Anne why they fights for the Emperor and once he hears his reason he said that he was better friends with the brawlers. While Grey was fighting Ren and Anne, Sid and Anya joins the battle to fight Dan and Grey, but the two still tied, when Sid and Anya got safe, almost killed and Captured by Dharak.

Leo and Drago battled Dharak Colossus but lost. In episode 25, Dan obtained Dragonoid Colossus and Grey obtanined Leonidas Colossus, but was not aware of it. Grey and Jake met Robin, a hypnotized kid from Bakugan Interspace, but they did not know he was hypnotized. When Robin ran off, he tried to stop Jake from running after him but got mad and gave up.

Dan witnessed Jake and Lana's return from Gundalia, but is suspicious of his nature since his return. He sets a trap for Jake, Lana and the two end up battling. Dan struggles against Jake, Lana and there new Ability Card given to them by Kazarina. Luckily, Shun, Julie and Runo arrives and helps them defeat Jake and Lana.

Grey and Dan is transported to the space in between dimensions to be tested by Dragonoid Colossus and Leonidas Colossus, to see if he is worthy of wielding the Sacred Orb's power. With the help of Explosix, Battlewing and Jakalier, they manage to defeat him. As a reward for winning, Dragonoid Colossus and Leonidas Colossus, Drago evolves into Blitz Dragonoid, Leo evolves into Maximum Leonidas and takes them back to Neathia along with Nurzak, Dragan, Aurica, Kavon and Mason who were trapped there.

In episode 30, They utilized Dragonoid & Leonidas Colossus's Battle Gear to break in to the Gundalian castle. Once inside, he got separated from Wynton, Shun, Runo, Julie and ended up in a strange room and is confronted by Barodius, so they battle. Grey and Dan struggles a bit against him until Dragonoid & Leonidas Colossus gives him an Ability Card to defeat him. After the battle, Dan and Grey demands that Barodius return Jake and Lana, only to have them tackle Grey and Dan, showing that they is still hypnotized by the Gundalians.

From episodes 32 to 35, They was locked up with Dan by Jake and Lana and was knocked out by Kazarina, who was going to vaporize him. However, Jake and Lana snaps out of there hypnosis and saves Grey and Dan.

In episode 36, They battles Kazarina, Airzel, Stoica, and Gill alongside Fabia, Ren, Shun, Jake, Julie, Runo, and Wynton. He wins against Gill, Stoica, and Airzel, but they must leave Fabia behind to finish the battle with Kazarina.

In episode 37, They tries to get to Barodius and Phantom Dharak, but is blocked by Strikeflier.

In episode 38, They is about to battle Phantom Dharak when he is warped to a space in between dimensions.

In episode 39, They battles Barodius and Phantom Dharak. They wins and Blitz Dragonoid evolves into Titanium Dragonoid and Maximum Leonidas evolves into Metallic Leonidas. Later in Gundalia, Grey and his sister had to say goodbye to Dan and his friends, he moves to Banneux Site, Gundalia with his new Girlfriend, meanwhile Grey Battles Jesse.

Bakugan 5: Mechtanium Surge Arc 1[]

One year after defeating Barodius, Grey is now 19 years old, Grey, Dan, Drago and Leo have returned to Bakugan Interspace and help Wynton expand it. Two rival teams, Team Anubias, Team Javier, Team Kassandra and Team Sellon have emerged and are trying to challenge the Brawlers' status as top-ranked battlers. Also, Later in Gundalia, Grey has 1st nightmare about the two of them have been having visions of a masked man named Mag Mel and a Bakugan named Razenoid demanding that they give him their power. Grey had 1st nightmare, Lena just talk to Grey, "Grey are you okay, what's wrong?" Grey said, "I had a nightmare, it comes inside me, I need more sleep!" Lena was worried about him if he feels alright. The next day, Grey and Dan was challenged by one of the members of Team Anubias, Ben, Team Javier, Rick. Dan and Grey manages to defeat them, but Drago and Leo loses control of there powers and nearly destroys the arena.

In Mechtogan Mayhem, he and Leo are off training at an abandoned arena in order to control Leo's powers. However, when activating "Dragon Hard Striker X20" - Leo goes insane and "spawns" Orbious. They comment on how strong Octogozer is and try battling him but are unsuccessful. Later, they are seen among the arena debris commenting that Leo's powers are not the only things that need to be controlled.

In Disconnect, he was trying to hide the problems with Leo, Drago from Shun and Wynton, Runo, Julie, but it is not working well. Later, he is seen being forced by Dylan to participate in a "meet and greet" even though he rejects it while trying to act like he has a big ego problem. Later, he battles Anubias and he won the first round but lost the second and the third round due to him trying to keep Leo's powers under control and making him run away. He was last seen watching a fan that supported him then rejected him for losing.

In Fall From Grace, he alongside his friends battled Zenthon and Orbious briefly before he disappears. Later, Grey goes back to Gundalia, He had nightmare about Mag Mel and Razenoid, Lena said, "Are you okay Grey, do have a another nightmare?" He said, "Yeah, I have a another nightmare in my dreams, I can't control it" She was worried about him. Later, he, Dan, Runo and Shun battled Sellon, Kassandra, Melissa and Chris and won but only due to Sellon and Kassandra throwing the match.

In Tri-Twister Take Down, the Brawlers discuss Dan and Drago taking a break from brawling in order to make sure the people inside Interspace are safe. Grey gets angry and leaves in order to continue training with Leo. Having trouble focusing on training due to the argument, they begin to agree that they need to take a break. Later, they watch Shun, Runo, Juile and Wynton's battle and after seeing what the Tri-Twisters are doing - he wants to help but feels conflicted and does not help them out.

In Agony of Defeat, he still refuses to listen to his friends when they tell him to take a break from battling. Even though he is still plagued by nightmares about Mag Mel and Razenoid, Grey doesn't mind battling Anubias with the winner being crowned the official number one brawler of Bakugan Interspace. During the fight, a vision of Mag Mel and Razenoid appears, and Grey and Leo think they are fighting them instead of Anubias, causing them to lay waste to the field and endanger the crowd. To make matters worse, Orbious reappears. Once Orbious leaves, Grey and Leo's vision are returned to normal. The battle is declared over and Grey is disqualified for illegally using Orbious and Anubias is crowned number one of Bakugan Interspace. Unable to face his fans that have turned against him, let alone his friends, Grey packs up his things and leaves.

In BakuNano Explosion, Grey and Dan went back to New Vestroia, to learn to control Drago and Leo's powers in safety.

In Return to New Vestroia, They and Drago, Leo were wondering why so many Bakugan had never seen a human before even though the Brawlers saved Vestroia many times. Later, they meet up with Preyas and Amazon at one of Leo and Drago's training grounds. At first, Leo and Drago are reluctant to battle due to their problems but Dan theorizes that maybe in the real world, Drago and Leo can control his powers better. So, they battle Amazon but lose control during the battle and are defeated. They later faint from exhaustion while Preyas and Amazon leave. Dan and Drago are seen later talking about what happened and Dan and Grey admits that he has no idea what to do.

In Chaos Control, he and Drago split up after the last one said he has to be alone for a while. But Anubias in his Gundalian form and Javier in his Neathian form (unknown who he is to Grey and Leo, Dan and Drago), sent by Mag Mel to get Grey Dan, Drago and Leo, arrived in New Vestroia and started attacking Drago and Preyas with a Chaos Bakugan gifted to him by Mag Mel, Darkus Iron Dragonoid. Drago took a hit and Preyas stepped in protect him. Anubias and Jaiver called thier own Mechtogans, (which is also gifted by Mag Mel). Preyas lost and Drago and Leo went into rage and lost control again and started destroying the area and summoned Zenthon until Dan and Amazon came and brought Drago came back to control. They battled Zenthon and Orbious who started to obey Drago and Leo after they got shot by Drago's Revolution-O ability. Dan and Drago battled Anubias and Iron Dragonoid while Zenthon battled and defeated Venexus. Dan and Drago won and Anubias and Javier flew back, expect for Grey and Leo.

In A Royale Pain, Dan and Drago are briefly seen at the end of the episode climbing a mountain in New Vestroia. They are seen to be more positive and Dan claims that they will control their powers and get back on top again. While Grey Calls Lena and her Gundalian Agents to help around with The Sixth Heroes of Reploids.

In Back In Sync, Dan, Grey, Drago and Leo are shown to be taming/training against Zenthon and Orbious. After, they try to fly up a cliff with a strong wind against them. They fail once, being out of sync, but after a few words of wisdom from Wavern, they succeed and begin to hunt the entity haunting them.

In Mind Search, Wavern leads them with Drago and Leo to a cave which will solve their nightmares. They enter the cave only to find a rainbow light. They look in the light and they see Mag Mel and Razenoid. After, they get flashed out of the cave and gain a symbol on their bodies. Then, Dan and Grey realizes that the light was Code Eve.

In Re-connection, Wavern lets Dan, Grey, Leo and Drago look through their memories to find the source of all their troubles. They find the source after evolving at the end of Gundalian Invaders. The feeling they had was the same feeling when they lost control. After, they decide to train as Wavern leaves the group.

In Trople Threat, he, Dan, Leo and Drago are still training on New Vestroia. He receives violent visions of Bakugan Interspace and Bayview being attacked by Razenoid and they face Sellon (in her Neathian form) and Kassandra (in her Gundalian form) and this time, since Dan and Drago are back in sync, they summon Zenthon and are able to control him. Then they become in sync with Zenthon, Orbious and summon Zenthon Titan and Orbious and win the battle.

In Interspace Under Siege, he Dan, Leo and Drago returns to Bakugan Interspace alongside Spectra Phantom, Vex Lancer, Infinity Helios and Chaos Epzilon after sensing danger within the Interspace.

In A Hero Returns, he attempts to take on all of the Chaos Bakugan himself to prove that he Dan, Leo, and Drago have control of his powers and of Zenthon and Orbious to the brawlers. However, he sees another vision of Mag Mel and loses control yet again. Later in Gundalia, Grey, the Gundalian Agents and the Sixth Heroes of Reploids want to go with Grey for stoping Mag Mel and Razenoid, he sees a vision of Gundalia being attacked by the Chaos Bakugan and warns the others. Paige and Kaz then receives a distress signal confirming that Gundalia is being attacked, and the brawlers decide to go help out Gundalia.

In Gundalia Under Fire, Drago and Leo opens a portal and the battle brawlers head to Paige and Kaz's home, Gundalia. When they arrive they meet up with Sid (who changed into his Human Form) and takes them to a secret base. Grey has a vision of Mag Mel and his plan to attack the capital of Gundalia. Wynton forms a strategy but Mag Mel launches a sneak attack of his own. Dan gets the BakuNano Sonicanon from Rafe and Grey gets the BakuNano Gatalling Launcher from Kaz, and they uses it against Razenoid. Mag Mel reveals that he uses the connection they share to gain the upper hand on the brawlers as Dan gets closer to him, their psychic connection grows stronger. The battle gets more intense forcing Dan and Grey to call Zenthon and Orbious but Mag Mel calls his own Mechtogan with each side using their strongest attack with Drago and Leo losing the battle as Razenoid was too powerful which forced the Brawlers to retreat.

In Battle Lines, Grey is still arrogant since his return. He constantly insisted on battling even though he was dissuaded by Lena, Jesse, Ren, Anne, Zenet and Mason, He gets angered to the point of grabbing Mason by the jacket and flipping Jesse. He then gets attacked by Anubias, Javier, Kassandra and Sellon along with Jesse. They manage to win with the help of Lena's Cannongear but is yelled at for not listening to stay at the base. He then falls into the chasm along with the rest of the brawlers.

In Unlocking the Gate, he went off after Mag Mel, but Kaz and Rafe convinces him to trust his friends, mentioning that they were just trying to help him. He apologized about his attitude beforehand. After some struggling, he and Dan beats Mag Mel and is welcomed back as the Leader of the Team Grey with Lena, Jesse, Ren, Anne, Mason, Zenet, Bryon, Kevin, Vincent, Foudre, Marina and Barry.

In True Colours, he and the brawlers return to the Bakugan Interspace. There, they are attacked by the Chaos Bakugan that were sent by Anubias, Javier, Kassandra and Sellon. He and the Team Grey also find out that Anubias, Kassandra, Javier and Sellon are working for Mag Mel. After the fight, they find out that they are trapped inside Interspace.

In Unfinished Business, he is seen battling against the Chaos Bakugan alongside Lena, Anne, Mason, Zenet, Ren and Jesse. Later, he receives a message from Anubias and Javier, telling him that he has kidnapped Noah and he want to fight him. When he finds him, they begin to battle each other but are evenly matched. Later, when Mag Mel absorbs Anubias and Javier, he is very angry and wants revenge against him.

In Behind the Mask, he is seen talking to the brawlers about how Mag Mel wants to invade Earth. He then tells the brawlers that the only way to defeat him is to use their link. They then say that it is a bad idea but he says that it is their only hope and that all of his friends have got his back. All of them then agree with him and he starts to focus to link up with Mag Mel. He then appears in the dark reversed dimension of Bakugan Interspace and battles against Mag Mel, Razenoid, Dreadeon and Razen Titan alongside Metallic Leonidas, Orbious and Orbious Titan. During the battle Grey cuts off a portion of Mag Mel's mask, revealing him to be Barodius, the former emperor of Gundalia. The battle ended in a draw as their powers were too much for the world to handle. Grey later reveals how he lost his link with Mag Mel and his identity to the brawlers which shock Dan, Paige, Runo, Kaz, Julie, Shun and the Gundalian / Reploid Agents, It's seems Leo has evolved into Ultimate Leonidas.

In Interspace Armageddon, he is seen battling Chaos Bakugan and Dreadeon clones. He, along with the other Brawlers (except Spectra, Vex, Infinity Helios and Chaos Epzilon), escape Bakugan Interspace as Wynton locks Bakugan Interspace, But Ultimate Leonidas is a Baku Sky Raider, he attach his new BakuNano Bombaplode.

In Dark Moon, he battled the Razen Titan clones with the rest of the Brawlers and they succeeded in defeating the Razen Titans. Dan, Grey, Drago and Leo then went into the Dark Moon with Mag Mel and Evolved Razenoid right behind them.

In The Final Takedown, Grey, Dan, Leo and Drago defeated Mag Mel and Evolved Razenoid, seemingly once and for all and Drago evolved into Fusion Dragonoid and Grey has a Chaos Army Symbol on his wire armor in his chest for defeating Mag Mel & Evolved Razenoid.

Bakugan 6: Mechtanium Surge Arc 2[]

He battled Runo in Evil Arrival and won. He also battled against the Rogue Mechtogan, who fused into Mechtavius Destroyer, and won using the newly spawned Dragonoid Destroyer and Leonidas Destroyer.

In Wiseman Cometh, Dan and Grey fought Wiseman along with Shun, Runo, Julie and Wynton. Drago and Leo summon Dragonoid Destroyer and Leonidas Destroyer which allowed Reptak, Reptak 2.0, Aerogan and Jaakor to be launched from it and increase their attack power. Drago and Leo finished them off with his power combined with Dragonoid Destroyer and Leonidas Destroyer.

In Mysterious Bond, Dan and Grey tried to help Reptak and Reptak 2.0 find there missing partner but ran into Wiseman. They used Battle Suit, Doomtronic, and combined Drago, Leo, Reptak and Reptak 2.0 to form Aeroblitz and Aeroblitz 2.0 to defeat Gliderak.

In End of the Line, all Bakugan around the world (according to Haley) spawned Mecthogan, fueling Dragonoid Destroyer and Leonidas Destroyer increasing his power level. They then talked to Genesis Dragonoid and Genesis Leonidas (Original Dragonoid & Original Leonidas) who told them about Mechtavius Destroyer's past, and congratulated Dan, Grey Drago, Leo for winning. Later in Bakugan City, Dan and Drago have a rematch with Grey and Leo, with Grey and Leo eventually winning. After that, Marucho, Haley, Anto, Lina, Alice, Lana, Jake, Hikaru, Wynton, Shun, Gunz, John, Runo, Julie, Lena, Ren, Zenet, Anne, Jesse, Mason, Bryon, Kevin, Marina, Barry, Vincent, Foudre, Ben, Jack, Noah, Robin, Soon, Chris, Fabia, Almaz, Marie, Larry, Linus, Elright, Ace, Baron, May, Ari, Dillon, Todd, Eric, David, Rick, Natalie, Melissa, Kaz, Marie, Paige, Rafe and Mira, host Grey and Leo a victory party, but they decide not to show up, and they take Kato's boat. Then the end fitith Season with Dan and Grey, and the others are rebulids the Bakugan Interspace in Bakugan City, before the BioTechnic Metal starts.

Bakugan 7: BioTechnic Metal[]

Grey is now 20 years old, He got back home on Gundalia, He thought his vison of Mag Mel and Razenoid, but Reploid Guy named Shinji, He takes the Gold dust for Pyrus Veltross, Vladitor and Hydranoid seem they have evolved, Vladitor Evolves in Gigan Vladitor and Hydranoid Evolves in Neo Alpha Hydranoid, they got back on Leonidas's Side.


Bakugan Battle Brawlers[]

  • Darkus Leonidas (Guardian Bakugan)
    • Darkus Omega Leonidas (Evolution - Evolved in episode 22)
    • Darkus Extreme Leonidas (Evolution - Evolved in episode 37)
    • Darkus Infinity Leonidas (Evolution after Drago and Leo merged with the Infinity Core in episode 51)
    • Darkus Battle Sword Vladitor (2nd Guardian Bakugan - Given by Marduk in episode 44)
  • Darkus Falconeer
  • Darkus Saurus
  • Darkus Serpenoid
  • Darkus Mantris
  • Darkus Terrorclaw
  • Darkus Gargonoid
  • Darkus Warius
  • Darkus Ravenoid
  • Darkus Tuskor
  • Darkus Hynoid
  • Darkus Rattleoid
  • Darkus Laserman
  • Darkus Reaper
  • Darkus Wormquake
  • Darkus Bee Striker
  • Darkus Juggernoid
  • Darkus Stinglash
  • Darkus Siege
  • Darkus Centipoid
  • Darkus Fear Ripper

Bakugan Battle Brawlers: New Vestroia[]

  • Darkus Neo Leonidas (The Six Ancient Warriors gave Leo a new body and separated him from the Perfect Core in episode 1)
    • Darkus Abyss Leonidas (Evolution - Evolved when Neo Leonidas received the Darkus Attribute Energy from Exedra in episode 27)
    • Darkus Verum Leonidas (Evolution - Evolved when Abyss Leonidas absorbed all the Attribute Energies from the B.T. System in episode 42)
    • Darkus Battle Sword Vladitor (2nd Guardian Bakugan)
    • Darkus Alpha Hydranoid (3rd Guardian Bakugan - Given by Alice in episode 37)
  • Silver Giga Buster (Verum Leonidas's Battle Gear - Created by Keith in episode 45)
  • Darkus Pythantus (Bakugan Trap - Given by Mira)
    • Darkus Phantom Pythantus (Evolved Bakugan Trap-Evolved before episode 32)
  • Maxus Leonidas/Maxus Abyss Leonidas
    • Darkus Strikefencer (Bakugan Trap- Taken from Mira in episode 23)
    • Subterra Elepower (Bakugan Trap- Taken from Gus in episode 23)
    • Haos Gunarm (Bakugan Trap- Taken from Gus in episode 23)
    • Ventus Blowen Hound (Bakugan Trap- Taken from Mira episode 23)
    • Aquos Clawenium (Bakugan Trap- Taken from Gus in episode 23)
    • Pyrus Fire Hound (Bakugan Trap- Taken from Mira in episode 23)
  • Ventus Atmos (Taken from Lync in episode 1)
  • Haos Freezer (Taken from Volt in episode 1)
  • Darkus Exedra (Temporary Guardian Bakugan - Used to get Leo back from Spectra and Wade in episodes 17-18) (Deceased)

Bakugan: Gundalian Invaders[]

  • Darkus Verum Leonidas (Guardian Bakugan)
    • Darkus Oblivion Leonidas (Evolution - Evolved after receiving The Element from Darkus Neo Ziperator, When Grey receiving a Gundalian DNA transformation by Code Eve's power in episode 12)
    • Darkus Maximum Leonidas (Evolution - Evolved after defeating Dragonoid Colossus and Leonidas Colossus in episode 29)
    • Darkus Metallic Leonidas (Evolution - Evolved after defeating Phantom Dharak and receiving Code Eve's powers in episode 39)
  • Silver Giga Buster (Battle Gear)
  • Gold Battlewing (Second Battle Gear - Received prior to episode 13)
  • Gold ExoKor Gear (Third Battle Gear)
  • Darkus Raytheus (Mobile Assault Vehicle - Received in episode 22) (Given by Linus)
  • Darkus Jakalier (Mobile Assault Vehicle - Received prior to episode 23) (Given by Linus)
  • Darkus Leonidas Colossus (Obtained in episode 25) (Deceased)
    • Gold ExoKor Gear (Destroyed)
    • Gold Beamblitzer (Destroyed)
    • Copper Blasteroid (Destroyed)
    • Gold Nukix Gear (Destroyed)
  • Pyrus Venoclaw (Taken from Nick in episode 8)
  • Haos Ziperator (Taken from Harold episode 9)
  • Pyrus Ramdol (Taken from Henry in episode 9)
    • Haos Sentanine (Swapped with Runo temporarily in episodes 16-17)

Bakugan: Mechtanium Surge[]

Arc 1[]

  • Darkus Metallic Leonidas (Guardian Bakugan)
  • Gold Gatalling Launcher (BakuNano) (Given by Rafe) (As Metallic Leonidas)
  • Platinum Bombaplode (BakuNano) (As Ultimate Leonidas)
  • Darkus Orbious (Mechtogan)
  • Darkus Orbious Titan (Mechtogan Titan)
  • Darkus Zoompha (Bakugan Mobile Assault)
  • Darkus Rapilator (Second Bakugan Mobile Assault)
  • Darkus Drivecycle (Thrid Bakugan Mobile Assault)

Arc 2[]

  • Darkus Ultimate Leonidas (Guardian Bakugan)
  • Haos Reptak 2.0 (Temporary Guardian Bakugan - Reunited with Gunz)
  • Darkus/Haos Aeroblitz 2.0 (Bakugan / Baku Sky Raider Combination of Ultimate Leonidas and Reptak 2.0) (Shared with Gunz)
  • Darkus Skytruss (4th Guardian Bakugan) (Borrowed by Shun)
  • Darkus Orbeum (5th Guardian Bakugan) (Borrowed by Shun)
  • Darkus Orbious (Mechtogan)
  • Darkus Orbious Titan (Mechtogan Titan)
  • Darkus Leonidas Destroyer (Mechtogan Destroyer)
  • Darkus Doomtronic (Bakugan Battle Suit) (Given by Mira)
  • Haos Doomtronic (Bakugan Battle Suit) (Given by Mira)
  • Darkus Defendtrix (Bakugan Battle Suit) (Given by Mira)
  • Haos Combustoid (Bakugan Battle Suit) (Given by Mira) (Gave to Gunz)

Bakugan: BioTechnic Metal[]

  • Darkus Ultimate Leonidas (Guardian Bakugan)
  • Darkus Hyperion Leonidas (Evolved Guardian Bakugan in before Master Quest Begins)
  • Darkus Gigan Vladitor (2nd Guardian Bakugan - When Battle Sword Vladitor evolves in episode 1)
  • Darkus Neo Alpha Hydranoid (3rd Guardian Bakugan - When Alpha Hydranoid evolves in episode 1)
  • Platinum Bombaplode (Battle Gear/BakuNano - Ultimate Leonidas/Hyperion Leonidas's Battle Gear)
  • Gold Dread Buster (Battle Gear/BakuNano - Gigan Vladitor's Battle Gear)
  • Gold Air Launcher (Battle Gear/BakuNano - Neo Alpha Hydranoid's Battle Gear)
  • Darkus Orbious (Mechtogan)
  • Darkus Orbious Titan (Mechtogan Titan)
  • Darkus Raytheus (First Mobile Assault Vehicle)
  • Darkus Jakalier (Second Mobile Assault Vehicle)
  • Darkus Zoompha (First Bakugan Mobile Assault)
  • Darkus Rapilator (Second Bakugan Mobile Assault)
  • Darkus Drivecycle (Thrid Bakugan Mobile Assault)
  • Darkus Leonidas Destroyer (Mechtogan Destroyer)
  • Darkus Doomtronic (Bakugan Battle Suit)
  • Darkus Defendtrix (Bakugan Battle Suit)
  • Maxus Ultimate Leonidas
    • Darkus Strikefencer (Bakugan Trap)
    • Subterra Elepower (Bakugan Trap)
    • Haos Gunarm (Bakugan Trap)
    • Ventus Blowen Hound (Bakugan Trap)
    • Aquos Clawenium (Bakugan Trap)
    • Pyrus Fire Hound (Bakugan Trap)


  • At the start of Grey's story, he first met Ghost Pandora.
  • Interestingly, Grey is the first main protagonist of a Mega Man game to be a Reploid since Mega Man Zero 4. This, in turn, makes Grey the only playable Reploid between in the ZX series and the Battle Brawlers series.
  • Being a recreation of the saga, Grey was recreate in the battle brawler saga.
  • Grey's intro is similar to Zero's in the first Zero game: both were asleep, and soon after awakening, both of them grab a gun from a dead body.
  • From the English version of Bakugan: Battle Brawlers, Grey was voiced by Lyon Smith the 1st English voice actor.
  • Grey's 2nd voice actor in Capcom Co., Ltd., Sonny Strait is the same as Bardock from Dragon Ball Z.
  • Grey is also be a Male Darkus Brawler like Ace Grit and Ren Krawler, Grey's Bakugan Partner is Darkus Leonidas.
  • Grey greatly resembles to Gary Oak From Pokemon Anime with his hairstyle.
  • He also his hair color Resemblance to the Beyblade: Metal Fusion character Ryuga, most notably their similar silver hair color.
  • He also another Resemblance to the Bakugan: Gundalian Invaders character Ren Krawler, most their similar silver hair color.