- Met Bam Margera, his partner in filming skateboard and stunt videos, on his first day of high school after moving from New York to Pennsylvania.
- Was an original member of the CKY Crew, whose stunts were later featured on MTV's Jackass.
- Made appearances in 2007's Blonde Ambition and in an episode of Law & Order: SVU.
- T-shirts bearing an X-ray image taken of Dunn for a certain notorious prank he pulled were sold around the time of the release of Jackass: The Movie in 2002.
- Ronald Dunn — Father
- Nicole Filippelli — Stepsister
- Angela Cuturic — Fiancée
- Joseph Piscitello — Stepbrother
- Thomas Piscitello — Stepfather
- Thomas Piscitello — Stepbrother
- Linda Piscitello — Mother
- Eric Dunn — Brother
- Brandi Berman — Sister
- Lynn Dunn — Stepmother
- Birth Name: Ryan Matthew Dunn
- Birth Place: Medina, OH
- Died: June 20, 2011
- Profession: Television personality, Stuntman, Actor
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He demonstrates the bukkehorn, the tagelharpa and the lyre