Dan Kuso

Dan is a boy who really loves playing Bakugan and aspires to be the strongest brawler to ever live, which he achieves in the last episode of the first season. However, he tends to be impulsive and rash, which often leads him to trouble when his overconfidence gets the better of him. He is easily frustrated, which combined with his eagerness to brawl, causes him to complain a lot when he has to wait around in hiding, as shown in the first and second season. By the third season, however, Dan has outgrown that habit, as shown in the episode Curtain Call when he was telling Jake Vallory to help rebuild the second shield generator after they had a successful victory over the Gundalian army.

In the beginning, Dan played using raw power and brute force without any kind of strategy, only caring about victories and not the consequences that would follow. Because of this, he and Drago got into an argument that ended with Dan throwing Drago in the river. After losing a battle to Ryo and reuniting with Drago, Dan learned that there's more to Bakugan than just power. After that experience, Dan started using a little more strategy and tactic in his battles, allowing him to take on world-ranked Bakugan champions such as Chan Lee.

He and Runo Misaki are known to argue and fight a lot, but deep down they care about each other although they hide it at first. By the end of the first season they have become close friends and go on a date. Dan is also known to embarrass himself at times in public like when he yelled that he would fight Masquerade in front of people at Runo's restaurant. Despite his hate of cruel people, he is shown to forgive them and let them redeem as shown with Masquerade, Masquerade Spies, Spectra Phantom, Gus Grav, Ren Krawler, Gunz Lazar, Team Sellon and Team Anubias. He believes that people deserve a second chance. However he is known for being rather headstrong rushing into situations without thinking of the consequences. He is also not afraid of fighting back when his team tells him to stay back as shown when he arrogantly told Marucho to back off and held him by the shirt. Dan can also act like a hypocrite like when he told Marucho to get over Preyas being sent to the Doom Dimension, even though he got extremely sad after Drago was taken from him by Spectra, when he told off Alice for bringing Lync to them even though he offered told Lync that he can come along with the Brawlers, or when he yelled at his friends for going in the Doom Dimension even though Dan himself foolishly went to be with Drago.