Goro Honda

• The Ace
• The Hero
• Jerk with a Heart of Gold
• Took a Level in Badass - Every season he learns a new trick related to pitching that makes him even better.

Toshiya Sato

• The Ace
• Bishounen: From Season 2 onwards.
• Chick Magnet
• Parental Abandonment
• The Smart Guy - Usually known as a genius rookie catcher.

Kaoru Shimizu

• Passionate Sports Girl - For softball, though partially to feel closer to Goro
• Patient Childhood Love Interest
• Tsundere- To Goro.

Daisuke Komori

• Nice Guy - Willing to forgive people who have bullied him and become very friends with them.

Shigeharu Honda

• Too Good for This Sinful Earth

Joe Gibson

• The Ace
• The Atoner: For killing Shigeharu Honda accidentally. Unfortunately the way he went about it ruined his own family.

Momoko Shigeno

• Yamato Nadeshiko

Hideki Shigeno

Ryoko Kawase

• Action Girl
• Passionate Sports Girl

Masato Koga

Megumi Koda

Shingo Shigeno

Masataka Oobayashi

Yamane Yoshitaka

• Jerkass - Until Goro talked sense into him and Komori was willing to be friends with him.

Egashira Tetsufumi

• Big Bad
• JERKASS

Shizuka Saotome

Taizou Saotome

Inui

Ken Mayumura

• The Ace
• The Stoic: Doesn't have much to say, but is always composed for baseball games.

Naoki Enomoto

Ichiro Yamada

Ayane Suzuki

Fuji

• Butt Monkey

Tashiro

• Jerkass: Pre Character Development.

Taiga Shimizu

• Deadpan Snarker

Ichiro Yamada/Steve Timothy

• Reasonable Authority Figure

Miho Nakamura

• Smitten Teenage Girl

Ginuma/Hayato Yagunima

Fox

• Nice Guy

Sanders

Alice Jinnai

Joe Gibson Jr.

• The Ace
• Freudian Excuse - He's a Jerkass to Goro at first since his dad started to neglect his family in order to atone for killing Shigeharu Honda.

Jeff Keane

• The Ace
• The Stoic

Waka Onodera/Miho Sato

• Mamiko Noto

Silva

Richard Watts

Billy Oliver

Mike Murdoch

• Freudian Excuse
• Jerk with a Heart of Gold