Al's Brain

'Weird Al' Yankovic

Self / Phineas Gage

Billy West

Norm the Owl / Billy the Brain

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

Michael William Arnold

Timmy

Ezra Buzzington

Homeless Guy

'Weird Al' Yankovic

Screenplay, Director

Greg Franklin

Animation

John Kricfalusi

Character Designer

Chris Mills III

Makeup Effects

Peter Anderson

Director of Photography

Jim West

Music

Pixie Monroe

Casting

Glen David Miller

Character Designer