| Position | Pitcher / Coach |
|---|---|
| Team | Yokohama DeNA BayStars |
| Number | 70 |
| Bats | Right |
| Throws | Right |
| Birth date | April 13, 1985 (age 41) |
| Birth place | Niiza, Saitama, Japan |
| Debutdate | March 26 |
| Debutyear | 2010 |
| Debutteam | Yokohama BayStars |
| Debutleague | NPB |
| Finaldate | September 21 |
| Finalyear | 2018 |
| Finalteam | Yokohama DeNA BayStars |
| Statyear | 2018 |
| Stat1label | Win–loss record |
| Stat1value | 12–22 |
| Stat2label | Earned run average |
| Stat2value | 4.03 |
| Stat3label | Strikeouts |
| Stat3value | 290 |
| Teams | As player As coach
|
Shigeru Kaga (加賀 繁, Kaga Shigeru) is a professional Japanese baseball player. He plays pitcher for the Yokohama DeNA BayStars.