Philip John Clapp, best known professionally as Johnny Knoxville, is an American stunt performer, actor, writer, and producer. He is best known as a co-creator and star of the MTV reality stunt show Jackass, which aired for three seasons from 2000 to 2001. A year later, Knoxville and his co-stars returned for the first installment in the Jackass film series, with a second and third installment being released in 2006 and 2010, respectively. Jackass Presents: Bad Grandpa (2013), the first film in the series with a storyline, saw him star as his Jackass character Irving Zisman. Jackass Forever was released in 2022. Jackass 4.5 (2022) is said to be his final installment of the Jackass franchise.Knoxville has had acting roles in films such as Men in Black II (2002), A Dirty Shame and Walking Tall (both 2004), The Dukes of Hazzard, The Ringer, and a cameo role as a sleazy corporate president of a skateboard company in Lords of Dogtown (all 2005), The Last Stand (2013), and Skiptrace (2016). He also voiced Leonardo in Teenage Mutant Ninja Turtles (2014).