Masanori Toguchi (戸口 正徳, Toguchi Masanori) or Kim Duk (Korean: 김 덕/金 徳) is a semi-retired Zainichi-Korean professional wrestler, better known under his ring name Kim Duk (キム・ドク). He was also known by the name Tiger Chung Lee in WWE.

In 1986, while wrestling in the U.S. for WWE, Kim Duk made his acting debut as a henchman of Charles Dance's character, Sardo Numspa, in The Golden Child, which starred Eddie Murphy. Two years later, he portrayed a Georgian mobster named Andrei 'The Mongol Hippie' in the Arnold Schwarzenegger film, Red Heat. A year later, he acted in two more films, Blind Fury starring Rutger Hauer, and Cage, starring Lou Ferrigno. In 2012, after a long hiatus from acting, Kim Duk portrayed Lee in the film, Mountain Mafia.