Paul Giamatti

as Screw-On Head (voice)

David Hyde Pierce

as Emperor Zombie (voice)

Patton Oswalt

as Mr. Groin (voice)

Corey Burton

as President Abraham Lincoln / Demon / Professor Faust (voice)

Mindy Sterling

as Aggie / Geraldine (voice)

Molly Shannon

as Patience the Vampire (voice)

Chris Prynoski

Director