"When I train I always use my hips, use the circular motion, the hips is where the power comes from." Man knew exactly what he was doing out there.
Their story
Hwang Jang-lee was a South Korean martial artist and actor whose explosive kicking made him one of the most feared screen villains of the Hong Kong kung fu boom. To audiences around the world he was Thunderleg, the opponent Jackie Chan had to overcome in Drunken Master, and the ruthless…
Hwang Jang-lee was a South Korean martial artist and actor whose explosive kicking made him one of the most feared screen villains of the Hong Kong kung fu boom. To audiences around the world he was Thunderleg, the opponent Jackie Chan had to overcome in Drunken Master, and the ruthless Shang Kuan Yin of Snake in the Eagle's Shadow, both released in 1978.
He was born on 21 December 1944 in Japan to Korean parents, and the family returned to Korea when he was a baby. He began training in taekwondo at about 14, served in the South Korean army and, in 1965, became a martial arts instructor for the Republic of Korea and South Vietnamese forces during the Vietnam War. He later held a ninth dan in Tang Soo Do and taught taekwondo as a civilian instructor.
He made his screen debut in 1974, cast by the director Lee Doo-yong. In 1976 the producer Ng See-yuen brought him to Hong Kong, where he played the villain Silver Fox in Secret Rivals. A long run of kung fu films followed, many of them made with the director and choreographer Corey Yuen, including Secret Rivals 2, The Invincible Armour, Snuff Bottle Connection, Dance of the Drunk Mantis, Ninja in the Dragon's Den and Millionaires Express. In 1981 he directed his first film, Hitman in the Hand of Buddha. Admirers called him the King of the Leg Fighters.
In the 1990s he returned to South Korea, ran businesses including a hotel and a security company, and choreographed fights for the SBS drama Sandglass and the film Boss before stepping back from acting in 1996. He came back to the screen in the 2009 MBC series The Return of Iljimae, taught action acting, and led the World Martial Arts Federation, travelling to meet fans in North America and Japan well into his eighties.
Hwang died on 12 November 2026, aged 81. According to Media in News, he collapsed at home that morning and was taken to the emergency room of Gangnam St. Mary's Hospital in Seoul, but did not regain consciousness. He had been preparing new film work and a martial arts film festival until the end, and he is remembered as a pioneer who carried Korean kicking technique to a worldwide audience.
Biography adapted from Wikipedia (CC BY-SA 4.0), Korean Wikipedia, Media in News. Wikipedia ↗
In their own words
“You know my legs are just normal, there's nothing special about them. When I train I always use my hips, use the circular motion... the hips is where the power comes from.”
Explaining the power of his kicks, quoted on Wikipedia

always thought it was the legs, good to know it was wrong this whole time