Line-up
Bobby Jarzombek
Batéria
Spastic Ink, Painmuseum, John West, Bobby Jarzombek, Arch - Matheos, Juggernaut (USA-1), Zierler, Halford, Sebastian Bach, ex-Riot, ex-Demons And Wizards
Ray Alder (Raymond Balderrama)
Voz
Engine, Ray Alder, ex-Redemption (USA)
Jim Matheos
Voz, Guitarra, Apoyo de voz, Teclados
ex-Gordian Knot, Office Of Strategic Influence, Arch - Matheos, John Arch, Jim Matheos
Joey Vera
Bajo
Engine, ex-Office Of Strategic Influence, Arch - Matheos, John Arch, ex-Seven Witches, ex-Anthrax, Brian Posehn, Armored Saint, Motor Sister, Kings Of Mercia, Chroma Key
Miembros pasados
Joe DiBiase
Bajo
1982 - 1996
Steve Zimmermann
Batéria
1982 - 1988
Frank Aresti
Guitarra
1986 - 1996
Arch - Matheos
Mark "Thunderchild" Zonder
Batéria
Jim Matheos, League Of Lights
John Arch (John Maurice Archambault)
Voz
Arch - Matheos, John Arch
Victor Arduini
Guitarra
1982 - 1986
Freedoms Reign, Mythosphere, Entierro
