- Ahrue Luster (Ill Niño)

- Anders Modd (Wolf)

- Andy LaRocque (King Diamond)

- Andy Lee (Circle II Circle)

- Aniol (Corruption, Virgin Snatch)

- Aydan (Elvenking)

- Björn Daigger (ex-Majesty)

- Charles Greywolf (Powerwolf, Flowing Tears)

- Dani Evans (Alestorm)

- Daniel Nikitin (Defect Designer)

- Dmitry Sukhinin (Defect Designer)

- Erol (Corruption)

- Exo (Noctem)

- Helion (Noctem)

- Fabian Pospiech (Midnattsol, Respawn inc.)

- Gorlan (Elvenking)

- Johannes Axeman (Wolf)

- Kasper Gram (Manticora)

- Kristian Larsen (Manticora)

- Martin Arendal (Manticora, Wuthering Heights)

- Matthew Greywolf (Powerwolf, Flowing Tears)

- Mike Wead (King Diamond, Mercyful Fate, bibleblack)

- "Mitch" Paul Michael Stewart (Circle II Circle, The Element)

- Niclas Etelävuori (Amorphis)

- Niklas Stålvind (Wolf)

- Opath (Corruption, Leash Eye)

- Orion (Behemoth)

- Paul Grivin (Defect Designer)

- Paul Popov (Defect Designer)

- Pontus Norgren (Hammerfall)

- Rafahel (Elvenking)

- Rudy Sarzo (Dio, ex-Ozzy Osbourne, ex-Whitesnake, ex-Yngwie Malmsteen, ex-Quiet Riot)

- Thomas Youngblood (Kamelot)

- Ul (Noctem)

- Warzy (Grim Force, Narcotic Greed, Hate Beyond)