A documentary that explores the history of heavy metal music, horror films, and how the two genres have merged together over time.
| Actor | Role |
|---|---|
 Rob ZombieSelf | Self |
 Michael BerrymanThe Host | The Host |
 Alice CooperSelf | Self |
 Sid HaigSelf | Self |
 Kane HodderSelf | Self |
 John CarpenterSelf | Self |
 Kirk HammettSelf | Self |
 Bill MoseleySelf | Self |
 Scott IanSelf | Self |
 Don DokkenSelf | Self |
 Sarah FrenchGardener | Gardener |
 Phil AnselmoSelf | Self |
 Dave MustaineSelf | Self |
 Corey TaylorSelf | Self |
 Jonathan DavisSelf | Self |
 John 5Self | Self |
 Marky RamoneSelf | Self |
 Dani FilthSelf | Self |
 Charlie BenanteSelf | Self |
 George FisherSelf | Self |
 Doug BradleySelf | Self |
 Nick CastleSelf | Self |
| RRon ChaneySelf | Self |
 Gunnar HansenSelf | Self |
 Christopher IrvineSelf | Self |
 Sara KarloffSelf | Self |
 Linnea QuigleySelf | Self |
 Tom SaviniSelf | Self |
| JJohn A. RussoSelf | Self |
| HHeidi ShepherdSelf | Self |