Mark Hamill

Senator Stampingston / Mr. Selatcia (voice)

Victor Brandt

General Crozier / Cardinal Ravenwood (voice)

Brendon Small

Skwisgaar Skwigelf / Pickles the Drummer / Nathan Explosion

Tommy Blacha

Toki Wartooth / William Murderface (voice)

Malcolm McDowell

Vater Orlaag (voice)

Laraine Newman

Liz Bane (voice) / TV Host / Sucubboso Explosionite (voice) / Pickles' Mom (voice) / News Reporter / Grandma / GMILF (voice) / Nathan's Grandma (voice) / Serveta Skwigelf / Molly / Rose Explosion (voice) / News Anchor / Woman (voice) / Newscaster (voice)

George Fisher

Hippie (voice) / Football Player (voice) / Metal Masked Assassin (voice) / Angry Customer (voice)

James Hetfield

Fan #1 (voice) / Lorkey (voice) / Sniper (voice) / Troll (voice)

King Diamond

Ronald von Moldenberg (voice) / The Blues Devil (voice) / Fast Food Restaurant Manager (voice) / Employee 421 (voice)

Kirk Hammett

Smoked Fingers fan (voice) / Queen of Denmark (voice) / Barkeep (voice)

Jon Schnepp

Additional Voices (voice) / Dr. Gibbits (voice)

Silenoz

Yaneemango Indian (voice) / Prison Inmate (voice) / Bobby (voice)