'''Ma DongDonh-seok''' (nama lahir Lee Dong-seok {{lahirmati||1|3|1971}}), yang juga dikenal sebagai '''Don Lee''' adalah seorang aktor Amerika yang berbasis di [[Korea Selatan]]. Ia dikenal karena memainkan [[aktor pendukung|peran pendukung]] dalam film ''[[The Neighbor (film 2012)|The Neighbor]]'', ''[[Nameless Gangster: Rules of the Time]]'', dan ''[[The Unjust]]''.<ref>{{cite web|script-title=ko:인터뷰: '부당거래' 마동석 "트레이너 출신 배우, 딱지 떼고 싶었다"|url=http://bntnews.hankyung.com/apps/news?popup=0&nid=04&c1=04&c2=04&c3=00&nkey=201011030000003&mode=sub_view|work=BNT News|language=Korean|accessdate=2012-11-28|date=3 November 2010}}</ref><ref>{{cite web|script-title=ko:터프가이 마동석, 용의 눈에 점찍다…'이웃사람'|url=http://www.newsis.com/ar_detail/view.html?ar_id=NISX20120827_0011393486&cID=10603&pID=10600|work=Newsis|language=Korean|accessdate=2012-11-28|date=27 August 2012|archive-date=2014-03-27|archive-url=https://web.archive.org/web/20140327220928/http://www.newsis.com/ar_detail/view.html?ar_id=NISX20120827_0011393486&cID=10603&pID=10600|dead-url=yes}}</ref><ref>{{cite web|script-title=ko:이웃사람: 서 살인범 패던 이 남자, "맞는게 더 편하다"?|url=http://star.ohmynews.com/NWS_Web/OhmyStar/at_pg.aspx?CNTN_CD=A0001772215&CMPT_CD=P0001|work=[[OhmyNews]]|language=Korean|accessdate=2012-11-28|date=29 August 2012}}</ref><ref>{{cite web|script-title=ko:인터뷰: ‘이웃사람’ 마동석 “외모 보고 오해하지 마라”|url=http://sports.khan.co.kr/news/sk_index.html?cat=view&art_id=201209021931383&sec_id=540401|work=[[Kyunghyang Shinmun]]|language=Korean|accessdate=2012-11-28|date=2 September 2012}}</ref><ref>{{cite web|title=Ma Dong-seok acts role of reporter in film|url=http://www.koreatimes.co.kr/www/news/nation/2012/10/113_123229.html|work=[[The Korea Times]]|accessdate=2012-11-28|date=26 October 2012}}</ref><ref>{{cite web|last1=Hwang|first1=Hee-yeon|last2=Kim|first2=Hyung-seok|title=10 Scene Stealers⑤ - MA Dong-seok: Wild but Tender|url=http://koreanfilm.or.kr/webzine/sub/people.jsp?mode=A_VIEW&wbSeq=58|website=Korean Cinema Today|accessdate=2014-10-30|date=17 October 2014}}</ref> Ia juga memainkan peran utama dalam ''[[Norigae (film)|Norigae]]'', ''Murderer'' dan ''[[One on One (film 2014)|One on One]].<ref>{{cite web|title=Star Focus: Ma Dong-seok|url=http://www.arirang.co.kr/TV2/Star_Focus.asp?F_KEY=1382&sys_lang=Eng|work=[[Arirang (jaringan TV)|Arirang News]]|accessdate=2014-03-27}}</ref><ref>{{cite web|last=Park|first=Si-soo|title=Watch out! They 'steal' scenes, your heart|url=http://www.koreatimes.co.kr/www/news/culture/2014/04/386_154488.html|work=[[The Korea Times]]|accessdate=2014-04-02|date=1 April 2014}}</ref><ref>{{cite web|author=Pierce Conran|title=MA Dong-seok to Star in KIM Ki-duk's Latest|url=http://www.koreanfilm.or.kr/jsp/news/news.jsp?mode=VIEW&seq=2940|work=Korean Film Biz Zone|accessdate=2014-05-30|date=27 February 2014}}</ref>
Di bawah nama aslinya yang di-Westernisasi-kan Don Lee dan sebelum ia berakting, ia sempat menjadi [[pelatih pribadi]] [[artis seni bela diri campuran]] [[Mark Coleman]] dan [[Kevin Randleman]].<ref>{{cite web|title=마동석, 30kg 감량 전후 비교해보니..'헉' 소리 날 정도|url=http://osen.mt.co.kr/article/G1109494860|work=Osen|language=Korean|accessdate=2012-11-28|date=6 November 2012}}</ref>
