There are 8 Japanese players active in MLB this year

Yu
Darvish

RHP San Diego Padres

ダルビッシュ有 (だるびっしゅ・ゆう)

Bats: R Throws: R

Current Age 34

6-5, 220lb (196cm, 100kg)

MLB Debut:
2012-04-09 (25)

Kenta
Maeda

RHP Minnesota Twins

前田健太 (まえだ・けんた)

Bats: R Throws: R

Current Age 33

6-1, 184lb (182cm, 81kg)

MLB Debut:
2016-04-06 (27)

Shohei
Ohtani

DH/P Los Angeles Angels

大谷翔平 (おおたに・しょうへい)

Bats: L Throws: R

Current Age 27

6-4, 210lb (193cm, 95kg)

MLB Debut:
2018-03-29 (23)

Yusei
Kikuchi

LHP Seattle Mariners

菊池雄星 (きくち・ゆうせい)

Bats: L Throws: L

Current Age 30

6-0, 194lb (183cm, 87kg)

MLB Debut:
2019-03-21 (27)

Shogo
Akiyama

OF Cincinnati Reds

秋山翔吾 (あきやま・しょうご)

Bats: L Throws: R

Current Age 33

6-0, 190lb (183cm, 86kg)

MLB Debut:
2020-07-24 (32)

Yoshitomo
Tsutsugo

OF/DH Los Angeles Dodgers (Minor)

筒香嘉智 (つつごう・よしとも)

Bats: L Throws: R

Current Age 29

6-0, 225lb (183cm, 102kg)

MLB Debut:
2020-07-24 (28)

Hirokazu
Sawamura

RHP Boston Red Sox

澤村拓一 (さわむら・ひろかず)

Bats: R Throws: R

Current Age 33

6-0, 212lb (183cm, 96kg)

MLB Debut:
2021-04-02 (32)

Kohei
Arihara

RHP Texas Rangers

有原航平 (ありはら・こうへい)

Bats: R Throws: R

Current Age 28

(189cm, 95kg)

MLB Debut:
2021-04-03 (28)