Jung Joon-ho is a South Korean actor. He first gained fame in the television series Women Like You (2000). He is best known for the films My Boss, My Hero (2001) and its 2006 sequel, Marrying the Mafia (2002), Another Public Enemy (2005), as well as the hit television series Iris (2009) and Sky Castle (2018–2019).

My Boss, My Hero (Korean: 두사부일체) is a 2001 South Korean action comedy film. It is the first of a trilogy with My Boss, My Teacher in 2006 and The Mafia, The Salesman in 2007.