Jack Black
JBKyle Gass
KGAmy Adams
Femeia superbaJohn C. Reilly
Sasquatch (necreditat)Ben Stiller
Vanzator la magazinul de chitariTim Robbins
StrainulMeat Loaf
Tatal lui Jack (necreditat)Paul F. Tompkins
Open Mic HostLiam Lynch
Jack Black
Liam Lynch
Kyle Gass
Jack Black
JBKyle Gass
KGAmy Adams
Femeia superbaJohn C. Reilly
Sasquatch (necreditat)Ben Stiller
Vanzator la magazinul de chitariTim Robbins
StrainulMeat Loaf
Tatal lui Jack (necreditat)Paul F. Tompkins
Open Mic HostJason Reed
LeeRonnie James Dio
El insusiTroy Gentile
Lil' JBDavid Grohl
SatanaCynthia Ettinger
Betty BlackStuart Cornfeld
Andrew Gross
John King
Robert Brinkmann
David Rennie