Ma Dong-Seok
- Name : Ma Dong-Seok / Lee Dong-Seok (birth name)
- Birth date : March 1, 1971
- Birth Place : South Korea
- Height : 180cm 5' 11"
Ma Dong-seok (born Lee Dong-seok on March 1, 1971) is a South Korean actor best known for his roles in the movies The Neighbor, Nameless Gangster, The Unjust, and the the TV show Shut Up Flower Boy Band.
Before getting into films and TV Ma Dong-Seok went by the name Don Lee in the western world, where he was a personal trainer for mixed martial artisits Mark Coleman and Kevin Randleman.
Movies
| 2014 | Kundo : Age of the Rampant | Chun-Bo |
| 2013 | The Five | Dae-Ho |
| 2013 | Marriage Blue | Gun-Ho |
| 2013 | Rough Play | gang boss |
| 2013 | Fasten Your Seatbelt | airport staff (cameo) |
| 2013 | The Flu | Jeon Kook-Hwan |
| 2013 | Mr. Go | baseball commentator (cameo) |
| 2013 | Rockin' on Heaven's Door | Moo-Sung |
| 2013 | Norigae | Lee Jang-Ho |
| 2013 | New World | Section Chief Jo |
| 2012 | Azooma | Detective Ma |
| 2012 | The Neighbors | Ahn Hyuk-Mo (loan shark) |
| 2012 | Love 911 | Head of firefighter team |
| 2012 | Doomsday Book | Disorderly student |
| 2012 | Nameless Gangster | Kim Sung-Bang |
| 2012 | Dancing Queen | Gay couple (cameo |
| 2012 | Never Ending Story | Tow car driver (cameo) |
| 2011 | Perfect Game | Park Man-Soo |
| 2011 | Pained | Bum-No |
| 2011 | Quick | Kim Joo-Chul |
| 2010 | Try to Remember | Seung-Hwan |
| 2010 | The Unjust | Ma Dae-Ho |
| 2010 | Midnight F.M. | Son Deok-Tae |
| 2009 | Insadong Scandal | Sang-Baek |
| 2008 | The Good, The Bad, The Weird | Bear |
| 2008 | Beastie Boys | Chang-Woo |
| 2007 | The Worst Guy Ever | Ho-Seop |
| 2005 | Heaven's Soldiers |
TV Shows
| 2012 | Shut Up Flower Boy Band | Teacher |
| 2011 | Me Too, Flower! | Detective (cameo) |
| 2010 | Dr. Champ | Oh Jung-Dae |
| 2009 | Lee Kang-rae | |
| 2008 | Formidable Rivals | Pyo Cheol-Ho |
| 2007 | H.I.T | Nam Seong-Sik |
