Satoru Furuya

VA : Nobunaga Shimazaki
One of the main characters in the manga Ace of Diamond. 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.

Eijun Sawamura

VA : Ryota Ohsaka
After being scouted from his hometown Nagano in his last game, Eijun goes to Tokyo and start his high school life in the one of the most famous high school baseball team in Japan!

He bats and throws left. He is a pitcher with a max speed of 130km/h, but because of his natural flexibility in his arm, he creates natural movement in his fastball.

Sawamura's batting is horrible to say the least, but can somehow bunt even a 150km/h (90mph) ball from a machine easily.

Kazuya Miyuki

VA : Takahiro Sakurai
Catcher. Hits left, throws right. Second year of high school. Jersey number, 2. He is known for his sporty sunglasses. Miyuki became a regular as a first year player with his gutsy pitch calls and clutch hits.

He is thought to have a 'bad personality' by classmates and teammates.

Haruichi Kominato

VA : Natsuki Hanae
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 while batting the ball, able to hit it as wide and as far as he pleases, and control where the ball lands. He also is extremely talented at defense, able to catch a ball in the air and throw it while still floating. He is often noted to have amazing baseball sense, able to decide in a split second where to hit the ball, what to watch for, and when to steal. His ability in baseball exceeds his older brother’s, Ryousuke Kominato, who is first-string player and also a second baseman. The only thing lacking is his stamina, which he works hard on improving.