Real name: Arnout Jongerden

Effective period / Period of releases: 2003

Producer from Holland which started releasing (web)tracks at the age of 12 for several popular hardcore and speedcore weblabels. Including: Gabber Army, UEH Records, Hate System, United Speedcore Nation, Mascha Records, Cerebral Destruction and Braindestruction Recordz. Currently he has withdrawn himself from the speedcore scene and creates breakcore tracks nowadays. Future plans to reactivate his Mr.Unknown alias have yet not resulted in any new tracks.