Jack Black JB, Producer, Writer, Songs
Amy Adams Gorgeous Woman
Ben Stiller Guitar Center Guy, Executive Producer
Jason Segel Frat Boy #1 (uncredited)
Colin Hanks Drunk Frat Dude
Tim Robbins The Stranger
Troy Gentile Lil' JB
John C. Reilly Sasquatch (uncredited)
Fred Armisen Security Guard
Amy Poehler Truck Stop Waitress
Melissa-Anne Davenport Girl
Molly Bryant Ecstatic Woman
Buck McDancer Stunts
Paul F. Tompkins Open Mic Host
Meat Loaf Bud Black (uncredited)
Cynthia Ettinger Betty Black
Andrew Lewis Caldwell Billy Black
Kyle Gass KG, Producer, Writer, Songs
Ned Bellamy Security Guard
Stephanie Erb Al's Bar Waitress
Gregg Turkington Stand Up Comic
John Ennis Gang Member
Jay Johnston Gang Member
Dave Grohl Satan
Jack Gill Stunts
David B. Nowell Aerial Director of Photography
Rick Avery Stunt Coordinator, Second Unit Director
Cale Boyter Executive Producer
Doug Coleman Stunts
Milos Milicevic Tattooed Biker, First Assistant Director
Ed McDermott II Stunt Driver
Cole S. McKay Stunt Double
Patrick M. Walsh Exploding Head Guy
Brent M. Bowen Visual Effects
Tim Trella Stunts
Kirk Ward Car Chase Cop / Gang Leader
Toby Emmerich Executive Producer
Vincent Foster Gang Member
Jeanne McCarthy Casting
Richard Brener Executive Producer
Michael Hugghins Stunts
Terry Jackson Stunts
Yeşim "Shimmy" Osman Hairstylist
Brian Avery Stunt Coordinator
Evie Peck KG's Mother
Angelique Midthunder Stunt Driver
JR Reed Lee
Eliza Coleman Stunts
Barney Burman Makeup Designer
Steve Hart Stunts
Juel Bestrop Casting
Joni Avery Stunts
Linda Flowers Hair Department Head
Frank Torres Stunts
Robert Chapin Stunts
Jeff Brockton Stunts
Dean Bailey Stunts
Mike Avery Stunts
Brian Machleit Stunts
Michael Hatzer Digital Color Timer
John Ashker Stunt Double
Hope Slepak Costume Supervisor
Pamela Alch Script Supervisor
Ronnie James Dio Dio
Erik Walker Bully
Danny Wynands Stunts
Stuart Cornfeld Producer
Mic Rodgers Stunts
David Hartman Production Illustrator
Mike Marino Special Effects Makeup Artist
Georgia Kacandes Executive Producer
Tom Elliott Stunts