Born in Pisa, Italy, Acuña grew up in Torrance, California, and attended North High School. He was the subscription manager for the skateboard magazine Big Brother. His association with that magazine led him to become involved with the Jackass television series in 2001. Acuña's Jackass antics include skating as an Oompa-Loompa, kicking himself in the head (a feat accomplished with the aid of his dwarfen proportions), dressing as a king while rolling Johnny Knoxville down a staircase in a red carpet, doing deep-knee bends while holding NBA star Shaquille O'Neal on his back, and having Preston Lacy ask someone to help him with his bags, only to have Wee-Man pop out, causing Preston to give chase.
In 2007, Acuña starred in the reality TV series Armed and Famous and in July 2007, Acuña appeared on TV as a host of MTV's Scarred Live.
Acuña appeared on the first season of NBC's Celebrity Circus. In the fourth week of competition, he became the first contestant to receive a perfect score (a 10 point average). Acuña ended the season in third place.
Acuña is an owner of a franchise store of the Chronic Tacos restaurant in Redondo Beach, California
TV, film, and releases
TV
* Armed and Famous (CBS, 2007)
* Bam's Unholy Union (2007)
* Celebrity Circus (NBC, 2008)
* Jackass (TV series) (MTV, 2000–2002)
* Jackassworld.com: 24 Hour Takeover (MTV Special, 2008)
* MTV's Scarred Live (MTV, 2007)
* Steve-O: Demise and Rise (MTV Special, 2009)
* Wildboyz (MTV, 2003–2006)
Movies
* Bullet (film) (1996) (Owner of Hell's Hole, uncredited role)
* Jackass: The Movie (2002)
* Jackass Number Two (2006)
* Jackass 2.5 (2007)
* National Lampoon's TV: The Movie (2007)
* Pee Stains and Other Disasters (2005)
* Grind (2003)
* The Dudesons Movie (2008)
* Jackass 3D (2010)
* Jackass 3.5 (2011)
DVDs
* Don't Try This At Home - The Steve-O Video Vol. 1 (2001)
* Don't Try This At Home - The Steve-O Video Vol. 2: The Tour (2002)
* Steve-O: Out on Bail (aka Don't Try This At Home - The Steve-O Video Vol. 3: Out on Bail) (2003)
Other
* Delinquent Habits (Tres Delinquentes music video, 1996)
* Feels Just Like It Should (music video) (2005)
