JB

Jack Black

Acting

KG

Kyle Gass

Acting

Lee

JR Reed

Acting

Dio

Ronnie James Dio

Acting

Open Mic Host

Paul F. Tompkins

Acting

Lil' JB

Troy Gentile

Acting

Security Guard

Ned Bellamy

Acting

Security Guard

Fred Armisen

Acting

Car Chase Cop / Gang Leader

Kirk Ward

Acting

Truck Stop Waitress

Amy Poehler

Acting

The Stranger

Tim Robbins

Acting

Satan

Dave Grohl

Acting

Guitar Center Guy

Ben Stiller

Acting

Girl

Lara Everly

Acting

Girl

Brittany Eldridge

Acting

Girl

Melissa-Anne Davenport

Acting

Gang Member

John Ennis

Acting

Gang Member

Vincent Foster

Acting

Gang Member

Jay Johnston

Acting

Drunk Frat Dude

Colin Hanks

Acting

Al's Bar Waitress

Stephanie Erb

Acting

Gorgeous Woman

Amy Adams

Acting

Tattooed Biker

Milos Milicevic

Directing

Ecstatic Woman

Molly Bryant

Acting

Poopy Guy

Michael Rivkin

Acting

Stand Up Comic

Gregg Turkington

Acting

Exploding Head Guy

Patrick M. Walsh

Acting

Fainting Woman

Bevin Kaye

Crew

KG's Mother

Evie Peck

Acting

Young KG

Mason Knight

Acting

Bully

Erik Walker

Acting

Betty Black

Cynthia Ettinger

Acting

Billy Black

Andrew Lewis Caldwell

Acting

Tarot Card Reader

Laura Milligan

Acting

Frat Boy #1 (uncredited)

Jason Segel

Acting

Bud Black (uncredited)

Meat Loaf

Acting

Sasquatch (uncredited)

John C. Reilly

Acting