Shun Kamiya
Voiced by: Akira Ishida (JP), Jacob Hopkins (EN)
- The Ace: He’s easily one of the best XB players in Neo Tokyo.
- Decoy Protagonist: Dies at the end of episode 3.
- Mentor Occupational Hazard: Acts as a mentor to Haru and Taiga, but dies three episodes in.
- The Nicknamer: He calls Haru "Boring" and Taiga "Tuna".
- Small Role, Big Impact: He dies three episodes in, but his legacy is felt throughout the series.
- Soap Opera Disease: Suffers from this, and ultimately dies from it. He didn’t tell anyone about it except for Mita and Manami.
- Trademark Favorite Food: Coffee. He takes his medicine with it.
Haru Shirokane
Voiced by: Shun Horie (JP), Casey Mongillo (EN)
- Character Development: Starts out shy and timid, but becomes more confident in himself as the series progresses.
- Cowardly Lion: A timid boy who’s nonetheless fiercely loyal to the Minato Tribe and willing to play for them.
- Super-Reflexes: His main strength is his reflexes, which he primarily uses to dodge attacks.
- Tragic Keepsake: Inherits Shun’s beam bat after he dies.
Taiga
Voiced by: Chiharu Sawashiro (JP), Phillip Sacramento (EN)
- Dumb Muscle: Not the brightest bulb, but his strength more than makes up for it.
- Fiery Redhead: A redhead and a Hot-Blooded XB enthusiast.
- Fighting Irish: Has an Irish accent in the English dub and the fighting spirit to go along with it.
- Foil: To Haru. Both are new to XB and train under Shun, but while Haru is timid and shy, he’s loud and arrogant.
- Not Distracted by the Sexy: His response to being massaged by three scantily-clad women? Brush them off and run off to go find Hanafuda.
- Super-Strength: In the second half of the series, he gains this after undergoing serious training. It’s strong enough that, if he swings a bat, the air currents he creates will blast the ball away whether or not he hits it.
Saori Arisugawa
Voiced by: Mai Fuchigami (JP), Brittney Karbowski (EN)
- Implied Love Interest: To Shun. Nothing is confirmed before his death.
- The Leader: Becomes the leader of the Minato Tribe after Shun’s death.
- The Smurfette Principle: The only female member of Minato Tribe.
Kazuki Aoyama
Voiced by: Shoya Chiba (JP), John Van Doren (EN)
- Ambiguous Situation: Did he actually interact with Shun before his death? The series leaves it ambiguous.
- Dark and Troubled Past: He was raised to play XB alongside Ojiro, but Tenshin deemed him not strong enough for his plans before having Ojiro break his arm and casting him out.
- Even Evil Can Be Loved: Even after everything Ojiro’s done, he still cares for him and is dedicated to saving him from himself.
- Insufferable Genius: He knows a lot about XB, and is perfectly willing to let everyone else know it.
Santaro Mita
Voiced by: Mutsumi Tamura (JP), Kevin Thelwell (EN)
- Ambiguously Brown: He has darker skin than his teammates, but his ethnicity is unknown.
- Oral Fixation: Always has a thin stalk in the corner of his mouth.
- Those Two Guys: With Manami.
Manami Daimon
Voiced by: Fukushi Ochiai (JP), Brendan Blaber (EN)
- Big Fun: The largest member of Minato, and by far one of the nicest.
- Team Chef: Serves as this to the Minato Tribe, always ready to support them with his cooking if nothing else.
- Those Two Guys: With Mita.
The Quadruplets
Voiced by: Joshua Waters (EN)
- Always Identical Twins: Quadruplets who look completely identical.
- The Dividual: Their individual names (Ichiro, Jiro, Saburo, and Shiro) have only been spoken once, and they largely act as a single unit.
- Flat Character: They're just there to round out the Minato Tribe's numbers. Taiga even calls them "recurring extras".
