Movies:
* Back to the Future Part II (1989): He appears as a "future" character called "Spike" in the Cafe 80s scene.
* SubUrbia (1996): He plays a small part as a punk rocker named "Jeff."
* The Big Lebowski (1998): A blink-and-you'll-miss-it cameo as a nihilist.
* Fear and Loathing in Las Vegas (1998): He plays a small but memorable role as a "lizard" who helps Duke (Johnny Depp) with a psychedelic experience.
* The Italian Job (2003): Flea plays a character named "Left Ear" who is part of the heist crew.
* The Secret Life of Walter Mitty (2013): He has a small role as a "photographer's assistant."
* Baby Driver (2017): A small but impactful role as "J.D." who helps Baby with his getaway.
* The SpongeBob Movie: Sponge on the Run (2020): He voices the character of "King Neptune" alongside Keanu Reeves.
Television:
* The Simpsons (1989): Flea has appeared in various episodes as himself, providing guest vocals for musical numbers.
* The X-Files (1993): He guest-starred in an episode called "Humbug" as a clown.
* The Adventures of Pete & Pete (1993): He makes a cameo appearance in the "Summer Vacation" episode.
* That '70s Show (1998): He guest-starred in an episode as a "punk rocker."
* Entourage (2005): He played himself in an episode.
* The League (2009): He had a guest appearance in an episode playing a character called "Greg."
* Portlandia (2011): He appeared as a "creepy cult leader" in an episode.
* The Walking Dead (2013): He played a small but memorable role as a character called "The Stranger" in an episode.
* American Dad! (2017): He guest-starred in an episode as himself.
* BoJack Horseman (2018): He voices the character of "Cuddly Dick" in an episode.
* Ugly Delicious (2018): He made an appearance in the "Steak" episode, sharing his love for the dish.
Other projects:
* He also contributed music to several films, including the soundtrack to "The Big Lebowski" and "Baby Driver."
* He is credited with "Additional Dialogue" in the movie "Fear and Loathing in Las Vegas."
This list is not exhaustive, but it covers most of Flea's notable appearances in film and television. You can find more information on his work on IMDb or Wikipedia.