Liam Lynch Director, Writer Jack Black JB Actor, Writer, Producer Kyle Gass KG Actor, Writer, Producer JR Reed Lee Actor Tim Robbins The Stranger Actor Ben Stiller Guitar Store Dude Actor, Executive Producer Colin Hanks Drunk Frat Dude Actor David Krumholtz Frat Boy 2 Actor Jason Segel Frat Boy 1 Actor Meat Loaf Jack's Father Actor Amy Poehler Truck Stop Waitress Actor Georgia Kacandes Executive Producer Stuart Cornfield Producer Robert Brinkmann Cinematographer David Rennie Film Editing