Dethklok's Original Manager / Fat Fan (voice)
Jack Black
Mr. Salacia / Senator Stampingston (voice)
Mark Hamill
Toki Wartooth (voice)
Mike Keneally
Vater Orlagg (voice)
Malcolm McDowell
Nathan Explosion / Skwisgaar Skwigelf / Pickles / William Murderface / Young Toki Wartooth / Charles Offdensen / Ishnifus Meaddle / Edgar Jomfru / Eric Jomfru / Magnus Hammersmith / Dr. Rockzo (voice)
Brendon Small
General Crozier (voice)
Victor Brandt
Abigail Remeltindrinc / Old Groupie (voice)
Raya Yarbrough
Bald Fan (voice) (uncredited)
Ulrich Wild
Metal Masked Assassin (voice)
George Fisher
Creator
Tommy Blacha
Director
Mark Brooks
Writer
Executive Producer
Producer
Shannon Prynoski
Janine Ditullio