Ryan Dunn, star of MTV TV and film franchise Jackass, was killed in a car crash early on Monday morning.
The 34-year-old and another passenger died at about 2.30am local time when the car they were travelling in hit a tree and burst into flames in West Goshen, Pennsylvania, NBC Philadelphia reported.
Dunn was identified by his tattoos, according to a witness who was on the scene when the bodies were pulled from the wreckage.
The mother of Dunn's Jackass co-star Bam Margera reportedly called a local radio station to confirm that he was killed in a car accident.
Dunn was one of the stars of Jackass, the MTV show in which he and a group including Margera and Johnny Knoxville conducted crude, ridiculous and often dangerous pranks and stunts.
Jackass ran for three series on MTV from 2000, followed by three movies and several spin-off shows.
To contact the MediaGuardian news desk email editor@mediatheguardian.com or phone 020 3353 3857. For all other inquiries please call the main Guardian switchboard on 020 3353 2000. If you are writing a comment for publication, please mark clearly "for publication".