Main Card Battlers
Hajime HinoboriThe protagonist, and a red card battler. He's crazy for seasoned rice and Battle Spirits. His parents created the battle system to fulfill his dream of meeting the spirits.
Kimari TatsumiA friend of Hajime's and the daughter of the co-creator of the battle system. She's a purple card battler, and dreams of world domination.
Tegamaru TanashiA red card battler, like Hajime. He's extremely talented, and will only battle opponents he deems worthy. Hajime considers him a main rival.
Chihiro KusakaA teammate of Tegamaru, and a white card battler. He loves to draw, and wants to become a spirit designer.
Kobushi NigiriA teammate of Tegamaru, and a green card battler.
Manabu OoizumiThe narcissistic student council president of Kadode Middle School. He's a blue card battler.
Arata YakushijiThe Battle Spirits champion. He uses red, and plans to challenge the winner of the Hero Championship. He has an alternate persona called Afrone.
Kouta TatsumiKimari's younger brother, and a card collector. He's Hajime's biggest fan, and loves Pentans.
Kataru OoizumiManabu's younger brother, who completely adores Manabu. He's usually seen eating junk food. He uses yellow.
Mika KisaragiThe worker at Battle Spirits shops, and a yellow card battler. She likes to dress up in different costumes.
Renard William ArdleyA talented card battler from Britain, whose dream is to become a guard for the Queen of England. To achieve this, he uses Battle Spirits as training in chivalry. Though he claims to be able to use any color, he is only shown to use purple. His key spirit is The Knight Hero Swordius-Arthur.