Kim Yeong-cheol had a role as a gngster boss in a 2005 South Korean gangster action drama film that was written by Kim Jee-woon, and starred who?
Kim Yeong-cheol (actor):  Other notable roles include playing Gung Ye in "Emperor Wang Gun" (2000-2002), a gangster boss in "A Bittersweet Life" (2005), and a NSS deputy director in "IRIS" (2009). A Bittersweet Life:  "The Sweet Life") is a 2005 South Korean gangster action drama film written and directed by Kim Jee-woon and starring Lee Byung-hun.
Lee Byung-hun