| John Bates - vocal | 1984-1985 |
| Dennis Dubeau - vocal | 1987-1988 |
| Randy Rampage - vocal | 1988-1989, 1999-2000 |
| Coburn Pharr - vocal | 1990-1992 |
| Aaron Randall - vocal | 1992-1994 |
| Joe Comeau - vocal | 2000-2003 |
| Dave Padden - vocal, guitar | 2003- |
| Jeff Waters - guitar | 1984- |
| Joe Bongiorno - guitar | 1984-1985 |
| K.C. Toews - guitar | 1987-1988 |
| Anthony Greenham - guitar | 1989 |
| Dave Scott Davis - guitar | 1989-1990, 1993, 1994-1996, 1999-2001 |
| Neil Goldberg - guitar | 1992-1993 |
| Curran Murphy- guitar | 2001-2003 |
| Dave Scott - bass | 1984-1985 |
| Wayne Darley - bass | 1988-1990, 1992-1993 |
| Cam Dixon - bass | 1994-1995 |
| Lou Bujdoso - bass | 1996 |
| Russell "The Woodsman" Bergquist - bass | 1999-2003, 2005-2007 |
| Sandor De Bretan - bass | 2004-2005 |
| Brian Daemon - bass | 2007-2008 |
| Dave Sheldon - bass | 2008-2010 |
| Alberto Campuzano - bass | 2010- |
| Paul Malek- drums | 1984-1985 |
| Richard Death - drums | 1985 |
| Ray Hartmann - drums | 1987-1992, 1999-2001 |
| Mike Mangini - drums | 1993, 2003-2004, 2007 |
| Randy Black - drums | 1993-1996, 2001-2003 |
| Dave Machander - drums | 1996 |
| Rob Falzano - drums | 2004-2005 |
| Tony Chappelle - drums | 2005 |
| Ryan Ahoff - drums | 2006-2007, 2008-2010 |
| Alex Landenburg - drums | 2007-2008 |
| Carlos Cantatore - drums | 2010- |
