Based on the award-winning comic book by Mike Mignola (creator of Hellboy), The Amazing Screw-On Head chronicles the adventures of a Civil War-era secret agent with an extraordinary special power who serves under president Abraham Lincoln.
Paul Giamatti
Screw-On Head (voice)
David Hyde Pierce
Emperor Zombie (voice)
Patton Oswalt
Mr. Groin (voice)
Corey Burton
President Abraham Lincoln / Demon / Professor Faust (voice)
Mindy Sterling
Aggie / Geraldine (voice)
Molly Shannon
Patience the Vampire (voice)
