Philip John Clapp (born March 11, 1971), known professionally as Johnny Knoxville, is an American stunt performer, actor, producer, and screenwriter. He is best known as a co-creator and star of the MTV reality slapstick comedy stunt show Jackass (2000–2001) and its subsequent movie franchise (2002–2026). Following the conclusion of Jackass, Knoxville and his co-stars returned for the first installment in the Jackass film series, with a second and third installment released in 2006, and 2010, respectively. Jackass Presents: Bad Grandpa (2013), the first film in the series to feature a storyline, saw him star as his Jackass character Irving Zisman. The fourth main installment, Jackass Forever, was released in 2022. Jackass: Best and Last was released in 2026. It is the final Jackass movie. Knoxville has had acting roles in films Men in Black II (2002), Grand Theft Parsons (2003), 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), Skiptrace (2016), and the television series Reboot (2022). He also voiced Leonardo in Teenage Mutant Ninja Turtles (2014).