When does art become obscenity? Cover Your Ears takes a close look at this question through the lens of the past 100 years of music and the ever-evolving discussion of legal and moral lines in the industry
| Actor | Role |
|---|---|
| MMurray ActonSelf | Self |
| SSteve ApplefordSelf | Self |
| WWes BeechSelf | Self |
 Jello BiafraSelf | Self |
| BBill BriouxSelf | Self |
 Chuck DSelf | Self |
| AAlan CrossSelf | Self |
| SStephanie DoktorSelf | Self |
| BBrandon DuncanSelf | Self |
 Richard EvansSelf | Self |
 Rhiannon GiddensSelf | Self |
 Ian MacKayeSelf | Self |
 Ian HillSelf | Self |
 Dee SniderSelf | Self |
 Frank ZappaSelf - Musician (archive footage) | Self - Musician (archive footage) |
 Fritz HollingsSelf (archive footage) | Self (archive footage) |