Mike Scully

Jared Hess

Jerusha Hess

Jon Heder

Napoleon Dynamite (voice)

Haylie Duff

Summer Wheatly (voice)

Jon Gries

Uncle Rico (voice)

Tina Majorino

Deb (voice)

Efren Ramirez

Pedro Sanchez (voice)

Sandy Martin

Grandma (voice)

Diedrich Bader

Rex (voice)

Aaron Ruell

Kip Dynamite (voice)

Tom Kenny

Curtis (voice)

Phil Hendrie

(voice)