There are 2 Japanese MLB players played for the Miami Marlins

Junichi
Tazawa

RHP Boston Red Sox

(Boston Red Sox , Miami Marlins, Los Angeles Angels)

田沢純一 (たざわ・じゅんいち)

Bats: R Throws: R

Current Age 37

5-11, 200lb (180cm, 90kg)

MLB Debut:
2009-08-07 (23)

Ichiro
Suzuki

RF Seattle Mariners

(New York Yankees, Miami Marlins, ORIX BlueWave, Seattle Mariners)

鈴木一朗 (すずき・いちろう)

Bats: L Throws: R

Current Age 50

5-11, 175lb (180cm, 79kg)

MLB Debut:
2001-04-02 (27)