Real name: Daniel "Dan" Kuso (or 空操 弾馬 ダン in Japanese)

Role: Imaginary friend for Xander

Age: 12 in the beginning, 18 by the end of the series.

Height: Unknown

Weight: Unknown (but way less than he should be)

Religion: None (but not atheist)

Is he married: No, but is dating Runo Misaki

Conditions: None

Personality: Dan is a boy who really loves playing 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 seasons. 

By the third season, however, Dan has outgrown that habit, as shown in the episode when he was told to help rebuild the second shield generator after they had a successful victory over the 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 eventually 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 tactics 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 themselves, as shown with each of the villains in the series. 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 depressed after Drago was taken from him by Spectra; when he told off Alice for bringing Lync to them, even though he offered to tell Lync that he could 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.

Favorite food: Unknown; he likes food of all types.

Biggest fears:

- Losing Drago in any way

- Not being strong enough to face future challenges (to the point that he'll exercise for 10 hours at a time, either in the heat, or in harsh rain)

Type of advice he gives Xander:

He takes a similar mentality to I-Mario in that he can become angry at others who cause injustice to Xander, but he does not engage with them in the same way that I-Mario does. He can also urge Xander to battle anyone who opposes him, including his father, with varied outcomes depending on whether Xander wants to do so or not.