2002年因拍摄广告而出道，血型O型。特长是棒球和剑玉2段（日本的一种童玩）兴趣是吉他和钢琴。喜欢的食物是冰激凌苏打。所属经纪公司为今井事务所。

　　2006年因演出NHK晨间日剧“纯情闪耀”中味噌店少爷松井达彦一角（女主角为宫崎葵）演技广受好评，知名度大增。之后在交响情人梦里饰演木讷的双簧管武士黑木泰则一角再度受到瞩目。在舞台剧、电视剧、电影皆有演出，是多方发展的新生代实力派演员。

Seiji Fukushi is a Japanese actor represented by Owlm. He was a member of Imai Office until 31 March 2015

Fukushi's first terrestrial drama was on the NHK drama Otokomae! which also ran a sequel. In December 2008, he, along with Koichi Otake, Takumi Saito, and Kazuki Namioka, formed the theater unit Run. It was announced on 1 April 2015 that Fukushi, with Tetsu Watanabe and Masaki Sawai, moved to Owlm.