D.R.I.
Dennis Johnson – bass guitar (1982–1983)
Sebastion Amok – bass guitar (1983)
Josh Pappe – bass guitar (1984–1985, 1985–1989)
Mikey Offender – bass guitar (1985)
John Menor – bass guitar (1989–1994)
Chumly Porter – bass guitar (1994–1999)
Eric Brecht – drums (1982–1984)
Felix Griffin – drums (1985–1990)
Rob Rampy – drums (1990–2014)
Brandon Karns – drums (2014)