He embarked on his stage career in 1978 and has since made notable appearances in various Korean theatrical productions, films, and TV shows.
Nam has established himself as a prominent figure in the South Korean theater industry and has received numerous prestigious awards throughout his career.
Among his most memorable works in his acting career are "Mask of Fire - Form of Power," "Birds Calling My Name," "Journey with Edipus," and "Alibi Chronicles.
Intrigued by the production, he joined the theater team shortly thereafter, driven by a simple curiosity and the belief that it would be an enjoyable endeavor.
He portrayed the main character, Min Yo-seop, and the play achieved a notable level of quality for a Korean production.
Renowned judges, such as Yoo Min-young and the late Cha Beom-seok, attended the regional screening of the College Theater Festival.
A local theater company filmed and edited the graduation performance to create a special program for broadcast.
He even created an 'actor study group' with his friends and later founded his own theater company called 'Geumgang', where he served as its representative for two years.
In 1992, he was cast as a guest performer in a theater company other than his own, in an experimental play called 'Mask of Fire' that portrayed the immorality and futility of power.
At the time, the head of the theater company and director, Chae Yoon-il, knew each other well and asked Nam if he would be interested in performing the play in Seoul.
[6][11][15][16] Encountering the next work 'Birds Cry Calling My Name' marked a pivotal moment for Nam to pursue his artistic career in Seoul.
Despite the challenges, he persevered and continued to make choices as an actor, knowing that there was always the possibility of losing his relevance in the industry.