Cast
James Hetfield
James Hetfield (voice)
Lars Ulrich
Lars Ulrich (voice)
Kirk Hammett
Kirk Hammett (voice)
Robert Trujillo
Robert Trujillo (voice)
Bootsy Collins
Bootsy Collins (voice)
Mike Judge
Beavis / Butt-Head (voice)
Lemmy Kilmister
Lemmy Kilmister (voice)
Matt Stone
Kyle Broflovski / Kenny McCormick (voice)
Brendon Small
Nathan Explosion (voice)
Trey Parker
Stan Marsh (voice)
Benji Webbe
Rasta Kirk's Psychedelic Section Dream Voice (voice)
