Member:
NA- Mechanism - vocals  
NA West Of Hell - vocals  
1989-NA The Kill [CAN] - vocals  
1991- Zimmers Hole - vocals  
2011-2012 Memorain - vocals  
Studio musician:
1997-1998 Devin Townsend - backing vocals  
2006 Devin Townsend - additional vocals  
Live musician:
2001-2007 Just Cause - backing vocals  
2002 Strapping Young Lad - keyboards