Joe Brown: Also known as Webmaster Joe. During the beginning of the series, it was revealed that due to a health condition, he basically lived in a hospital. During this time the Brawlers thought that he was, or was working for, Masquerade. After Dan confronted him, he told Dan that he would only tell him the truth if Dan could beat him in a battle. In the middle of the battle, Joe fainted, and when he awoke he revealed that the brawlers theories were untrue, and he actually sent a message to all of the Bakugan players around the world to warn them that Masquerade was plotting against them. After the truth was revealed, they asked him if he wanted to become a Brawler, which he gladly accepted the offer to. He then revealed him and his mother were going on a Road trip for the time being, to see the world outside of the hospital. Sometime later, after he moved to the Brawlers neighborhood, he found Wavern who had the Infinity Core hidden inside of her. Wavern is a non-attributed bakugan, meaning her abilities in battle are to an extent. Wavern is Joe's guardian Bakugan. It is also revealed that Wavern is Naga's younger twin sister. Joe is the first person to beat Masquerade at Bakugan, after he obtains his new Bakugan,Wavern.
Billy Gilbert: Julie's childhood friend and 10th Ranked Bakugan player. He played Julie when they first battled, but lost in a rematch, and lost 9 more times when he was under the control of Masquerade.Once while battling under Masquerade's rule Billy almost sends both Gorem and Julie to the doom dimension. He is shown to like Julie in episode 47. At the end of the series, Julie asks him if he would like to go on a date some time, and he agrees. Also, at the end of episode 47 Julie makes it known that the two are boyfriend and girlfriend. It is assumed that they are still going out.
Klaus Von Herzen: He was once the second ranked Bakugan player, but later moves down to textrank 4 after being defeated by Masquerade. He is an Aquos battler and his guardian Bakugan is Aquos Sirenoid, who he shares a deep bond with. He sent Marucho's Aquos Preyas into the Doom Dimension, but gave him back later. He somewhat has a crush on Alice. [Because he is always concerned when Alice suddenly goes off or what we say wonders off.] In episode 26 Klaus lost Sirenoid to Masquerade.
Chan Lee: The third rank brawler that appeared in episode 14, and was recruited by Masquerade. She uses Pyrus attribute Bakugan and her guardian Bakugan is Pyrus Fortress. Dan Kuso beat her on episode 16. Pyrus Fortress gets sent to the Doom Dimension in Episode 26. She is reunited with him sometime around episodes 32 and 36. She has a crush on Joe and at the end of the second series when Dan is on his date with Runo, she and Joe can be seen together in the background. At the end she and Joe are going out. In episode 49 Chan rescues Joe from Hal-G using her martial arts moves.
Komba O'Charlie: The 5th Ranked Bakugan player and Julie's neighbor in Africa. He uses Ventus attribute Bakugan, Harpus. He used to be rather selfish and refused to accept his first defeat from Shun and challenges him again, although he lost. He was ranked fifth best Bakugan player until his defeat in episode 26 and the loss of Harpus, which was Masquerade's doing.
Julio Santana: The 4th Ranked Bakugan player and self-proclaimed master of Haos-attribute bakugan. His Guardian Bakugan is Haos Tentaclear. Tentaclear does not talk but is strong in battle. Julio is a bully of the Brawlers.
Jenny & Jewles: A.K.A. JJ Dolls, are not really part of the show but make aperances in episodes 7,8,9,45, and 52. Maybe even episode 10. Their first appearances was on episode 7,8, and 9, when they show up at Marucho's house and battles Marucho and Dan when Masquerade tempted them with the doom card. They make another appearance in episode 45 when the help beat Tayghen with Marucho. They also appear in episode 52 waving good bye to their bakugan. Jenny battles with Aquos bakugan and for Jewles Subterra bakugan. In episode 45 it is shown that Jewles likes blue. Jenny & Jewles are shown to battle together and are pop star singing sisters. Jenny is the one with purple hair and Jewles has Aqua Green hair. Also Jenny's guardian bakugan might be an Aquos Siege and for Jewels a Subterra Centipoid.
