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
Kirk Ward
Car Chase Cop / Gang Leader
Amy Poehler
Truck Stop Waitress
Tim Robbins
The Stranger
Dave Grohl
Satan
Ben Stiller
Guitar Center Guy
Lara Everly
Girl
