Tesshin Kataoka

Satoru Furuya

Furuya is a right-handed power pitcher who throws a fastball and forkball. His main objective is to improve his stamina and control. Eijun Sawamura is his rival.

Kazuya Miyuki

Miyuki Kazuya is a second year student of Seidou High School and the best catcher of the baseball team. He was already a noted catcher on his first year and nationally known for hi

Eijun Sawamura

Eijun Sawamura comes from the prefecture of Nagano where he played baseball at Akagi Junior High. After their last match, he was scouted by Takashima Rei that decided his new journ

Hirofumi Asada

Asada Hirofumi is a first year student of Seidou High School. He is a pitcher and shares a room with Kuramochi and Sawamura. (Source - Diamond no Ace Wikia)

Rei Takashima

She is the Assistant Director of Seidou High's baseball team. She scouted Eijun and invited him to the Seidou Baseball Team.

Yuuta Mishima

A first year student of Yakushi High School. He aims to be Yakushi's cleanup hitter.

Haruichi Kominato

A first-year second baseman of the team, Haruichi is a naturally talented, all-rounder baseball player. Despite his small stature and frail appearance, he has pinpoint precision wh

Chris Yuu Takigawa

Chris Takigawa is a third-year student and a member of the Seidou High School Baseball Team. Because of a shoulder injury he had to take a year of for rehabilitation and lost his p

Shinji Kanemaru

A first year at Seidou High School and Eijun's classmate. Kanemaru lived in the dorms with Chris as his roommate. A very confident first-year and considered the leader of first yea

Kazuyoshi Oota

He is a history teacher at Seidou and also the club president of the Seidou High baseball team. Often shows a lot of emotion in the dugout and doesn’t put very much trust in player

Ichirou Sakai

Sakai Ichirou comes from Saitama prefecture and is a third year student of Seidou High School. He is a left fielder of the Seidou baseball team.

Ryousuke Kominato

Ryousuke Kominato is a third year student at Seidou High School and the older brother of Haruichi Kominato. He was the second baseman of the first string.

Takuma Seto

Seto Takuma is a student of Seidou High. He is the roommate of Kanemaru Shinji.

Masashi Yuuki

Masashi Yuuki is a student of Seidou High and was the popular fourth batter of Kokubun Senior in junior high. Like his brother, he also attended Akadou Junior High. (Source - Diamo

Ataru Nakata

Nakata Ataru is a second year high school student of Seido High School.

Raichi Todoroki

Raichi is the 1st year protegé of Yakushi and perhaps Sawamuras biggest rival who doesn't wear the colors of Seidou. Raichi Todorokis specialty is batting, an ability he has honed

Koushuu Okumura

A first-year member of the Seidou High School Baseball Club. His position is catcher. He is unafraid of anyone and speaks his mind openly. In the dormitory, he shares a room with M

Carlos Toshiki Kamiya

A second year high student of Inashiro Industrial and the lead-off man for Inashiro's batting lineup. He was known as a great fielder and his speed was on par with Seidou's Kuramoc