Acting · b. 1970 · North Gyeongsang Province, South Korea Lee Jeong-heon Biography Lee Jeong-heon is a South Korean film and television actor. Acting Enemy At The Dead End Teacher Choi 2010 No Mercy Analyst 2010 The Guard Post Doctor 2008 Dachimawa Lee Yasi (uncredited) 2008 음란한 사회 JeongSeok 2008 Seven Days Prosecutor Choi 2007 Big Bang Seo Tae-hoon 2007 If You Were Me 2 Chang-soo 2006 Silmido Sergeant Park 2003 Digital Short Film Omnibus Project Twentidentity, Vol. 1 segment: "Seotda" 2003 Painted Fire Song-heon 2002 Public Enemy Sticky Note 2002 Chunhyang Gov. Byun Hakdo 2000 Agent-readable