| Jack Black | JB |
| Kyle Gass | KG |
| JR Reed | Lee |
| Ronnie James Dio | Dio |
| Paul F. Tompkins | Open Mic Host |
| Troy Gentile | Lil' JB |
| Ned Bellamy | Security Guard |
| Fred Armisen | Security Guard |
| Kirk Ward | Car Chase Cop / Gang Leader |
| Amy Poehler | Truck Stop Waitress |
| Director | Liam Lynch |
| Producer | Jack Black; Cale Boyter |
| Writer | Jack Black; Kyle Gass |
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