On screen
Cast
11 credited performers
'Weird Al' Yankovic
Self / Phineas Gage
Billy West
Norm the Owl / Billy the Brain (voice)
Tim Heidecker
Brain Stretcher
Eric Wareheim
Brain Stretcher
Patton Oswalt
Co-Worker
Thomas Lennon
Co-Worker
Paul McCartney
Man on the Street
Fabio
Man on the Street
Bob Bancroft
Norm Kozlovsky
Artwork unavailable
Michael William Arnold
Timmy
Ezra Buzzington
Homeless Guy