Los Angeles native drummer Jim Wilcox, formerly of Welter and The New Militia among others, joined Authority Zero in the late nineties replacing Daniel Garcia.



Authority Zero's veteran drummer Jim Wilcox left the band in January 2012 to focus on his dj outfit Blue Collar Prophet.



For Authority Zero's February 2012 tour, Jim Wilcox was replaced by Chris Bartholomew, lead singer and former drummer of the metal band Allura.



Soon after the band recruited Sean Sellers of Good Riddance and The Real McKenzies as a full time replacement.