| John Perez |
1989 - |
LIQUID SOUND COMPANY, PUNCTURE, SOLITUDE, ROTTING CORPSE |
| Robert Lowe |
1989 - |
CANDLEMASS, CONCEPT OF GOD, LAST CHAPTER, SOLITUDE |
| Steve Moseley |
1996 - |
CONCEPT OF GOD, OMEGA THESIS, HYD |
| James Martin |
2005 - |
CONCEPT OF GOD, ZANISTER, KINRICK, SURGEON, Michael Harris |
| Steve Nichols |
2005 - |
PHANTOM-X, GODFEAR |
| John "Wolf" Covington |
1989 - 2005 |
CONCEPT OF GOD, OMEGA THESIS, HYD |
| Edgar Rivera |
1989 - 1998 |
|
| Teri Pritchard |
1996 - 1996 |
LAST CHAPTER |
| Lyle Steadham |
1989 - 1996 |
GHOULTOWN, KILLCRIPS, SOLITUDE, DEATH TRIPPER |
