Song Kang-ho never professionally trained as an actor, beginning his career in social theater groups after graduating from Kimhae High School. Later, he joined Kee Kuk-seo's influential theater company with its emphasis on instinctive acting and improvisation, which proved to be Song's training ground. Although regularly approached to act in films, he always turned down the opportunity until taking a role as an extra in Hong Sang-soo's Daijiga umule pajinnal (1996). In the following year, after portraying one of the homeless in Sun-Woo Jang's docu-drama Nappun yeonghwa (1997), he gained cult notoriety for his scene-stealing performance in Neung-han Song Songneunghan (1997) as a gangster training a group of young recruits, winning his first Best Actor award. Since that time he was cast in several supporting roles before his high-profile role as Han Suk-kyu's secret-agent partner in Je-kyu Kang's blockbuster thriller Swiri (1999). In early 2000, Song became a star with his first leading role in the box office smash Banchikwang (2000), for which he reputedly did most of his own stunts. But it was with his award-winning role as a North Korean sergeant in Gongdong gyeongbi guyeok JSA (2000) that Song has come to the forefront as one of Korea's leading actors. Song also starred in Park Chan-wook's Boksuneun naui geot (2002), which centers around a father's pursuit of his daughter's kidnappers. In 2002 Song starred in another major production by Myung Film titled YMCA Yagudan (2002), about Korea's first baseball team, which formed in the early 20th century. He came to international attention with the film Gwoemul (2006), which reunited him with director Bong Joon Ho. With Snowpiercer (2013), his third collaboration with Bong, he made his debut in an English-language film with international theatrical distribution. In 2008 he starred in Kim Jee-woon's film Joheunnom nabbeunnom isanghannom (2008), where he played Tae-goo, the motorcycle-riding, walther-wielding counterpart to "The Good, the Bad and the Ugly"'s Tuco. In 2015, Song Kang-ho works on 'The Throne', a period drama of palace intrigues par excellence and whose film is nominated that year for best non-English-language film and costumes at Satellite awards. Already in 2016 he makes his fourth collaboration with Korean director Kim Jee-woon and is none other than the critically acclaimed film "The Empire of Shadows." A period drama with a background of espionage intrigue with a very good technical bill.