Paul Giamatti
Screw-On Head (voice)
Acting
David Hyde Pierce
Emperor Zombie (voice)
Acting
Patton Oswalt
Mr. Groin (voice)
Acting
Corey Burton
President Abraham Lincoln / Demon / Professor Faust (voice)
Acting
Mindy Sterling
Aggie / Geraldine (voice)
Acting
Molly Shannon
Patience the Vampire (voice)
Acting