There are 11 Japanese MLB players played for the Seattle Mariners
Yusei
Kikuchi
(Saitama Seibu Lions, Seattle Mariners, Toronto Blue Jays, Houston Astros, Los Angeles Angels)
菊池雄星 (きくち・ゆうせい)
Bats: L Throws: L
Current Age 33
6-0, 194lb (183cm, 87kg)
MLB Debut:
2019-03-21 (27)
Yoshihisa
Hirano
(Arizona Diamondbacks, Seattle Mariners, ORIX Buffaloes)
平野佳寿 (ひらの・よしひさ)
Bats: R Throws: R
Current Age 40
6-1, 185lb (185cm, 83kg)
MLB Debut:
2018-03-29 (34)
Hisashi
Iwakuma
RHP 
Seattle Mariners
(Seattle Mariners, Tohoku Rakuten Golden Eagles)
岩隈久志 (いわくま・ひさし)
Bats: R Throws: R
Current Age 43
6-3, 210lb (190cm, 95kg)
MLB Debut:
2012-04-20 (31)
Munenori
Kawasaki
(Seattle Mariners, Toronto Blue Jays, Chicago Cubs, Fukuoka SoftBank Hawks)
川崎宗則 (かわさき・むねのり)
Bats: L Throws: R
Current Age 43
5-11, 175lb (180cm, 79kg)
MLB Debut:
2012-04-07 (30)
Norichika
Aoki
(Milwaukee Brewers, Kansas City Royals, San Francisco Giants, Seattle Mariners, Houston Astros, Toronto Blue Jays, New York Mets, Tokyo Yakult Swallows)
青木宣親 (あおき・のりちか)
Bats: L Throws: R
Current Age 43
5-9, 180lb (175cm, 81kg)
MLB Debut:
2012-04-06 (30)
Kenji
Johjima
(Seattle Mariners, Fukuoka SoftBank Hawks, Hanshin Tigers)
城島健司 (じょうじま・けんじ)
Bats: R Throws: R
Current Age 48
6-0, 205lb (183cm, 92kg)
MLB Debut:
2006-04-03 (29)
Ichiro
Suzuki
(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 51
5-11, 175lb (180cm, 79kg)
MLB Debut:
2001-04-02 (27)
Kazuhiro
Sasaki
RHP Seattle Mariners
(Seattle Mariners, Yokohama DeNA BayStars)
佐々木主浩 (ささき・かずひと)
Bats: R Throws: R
Current Age 56
6-4, 209lb (193cm, 94kg)
MLB Debut:
2000-04-05 (32)
Shigetoshi
Hasegawa
(Los Angeles Angels, Seattle Mariners, ORIX BlueWave)
長谷川滋利 (はせがわ・しげとし)
Bats: R Throws: R
Current Age 56
5-11, 160lb (180cm, 72kg)
MLB Debut:
1997-04-05 (28)
