| Kim Bendix "King Diamond" Petersen - vocal | 1985- |
| Livia Zita - vocal | 2003- |
| Floyd Konstantin - guitar | 1985 |
| Andy La Rocque - guitar | 1985- |
| Michael Denner - guitar | 1985-1987 |
| Michael Moon - guitar | 1987 |
| Pete Blakk - guitar | 1987-1990 |
| Mike Wead - guitar | 1990-1995, 2000- |
| Herb Simonsen - guitar | 1995-1998 |
| Glen Drover - guitar | 1998-2000 |
| Timi "Grabber" Hansen - bass | 1985-1987 |
| Hasse "Hal" Patino - bass | 1988-1990, 2000- |
| Sharlee D'Angelo - bass | 1990-1993 |
| Chris Estes - bass | 1995-2000 |
| David Harbour - bass | 2000 |
| Mikkey Dee - drums | 1985-1988 |
| Chris Whitemier - drums | 1988 |
| Snowy Shaw - drums | 1989-1994 |
| Darrin Anthony - drums | 1995-1997 |
| John Luke Hebert - drums | 1997-2000 |
| Matt Thompson - drums | 2000- |
| Roberto Falcao - keyboards | 1987-1990 |
| Kol Marshall - keyboards | 2000, 2002 |
