On screen
Cast
61 credited performers
Vanessa Marshall
Character not listed
Greg Eagles
Grim (voice)
Richard Steven Horvitz
Billy (voice)
Grey DeLisle
Mandy (voice)
Rachael MacFarlane
Mindy / Mom #3 (voice)
Diedrich Bader
Character not listed
Phil LaMarr
Dracula
Billy West
Viper
Maxwell Atoms
Jeff the Spider (voice)
Dee Bradley Baker
Mandy's Dad
Candi Milo
Character not listed
Armin Shimerman
General Skarr
David Warner
Nergal (voice)
Jake Thomas
Nigel Planter
Brian Tochi
Chef
Jennifer Hale
Gladys
Martin Jarvis
Nergal
John Vernon
Dean Toadblatt
Tom Kenny
Character not listed
Quinton Flynn
Character not listed
Peter Renaday
Character not listed
Jess Harnell
Character not listed
Frank Welker
Boskov
Dawnn Lewis
Character not listed
Jane Carr
Pud'n
Henry Gibson
Lord Pain
'Weird Al' Yankovic
Squid Hat
C.H. Greenblatt
Fred Fredburger (voice)
Debi Derryberry
Nergal Jr.
Tom Kane
Professor Utonium (voice)
John Kassir
Lord Moldybutt
Jay Gordon
Sick Guy
Earl Boen
Character not listed
Mark Hamill
Character not listed
Jeff Bennett
Character not listed
Clyde Kusatsu
Character not listed
Jeannie Elias
Malaria
Alan Oppenheimer
Father Time
Keone Young
Kwan Ti
Wayne Knight
Jack O'Lantern
Scott Menville
Pinocchio
Mary Jo Catlett
Witch
Fred Willard
Boogey
Robin Atkin Downes
Character not listed
Rob Paulsen
Tooth Fairy
James Arnold Taylor
Fred Flintstone
Nika Futterman
Pandora
Ronnie Schell
Dean Toadblatt
Laraine Newman
Crossing Guard (voice)
Cree Summer
Cave Witch (voice)
R. Lee Ermey
Sergeant / Drill Sergeant
Michael Dorn
King Beardbottom / Clown / Dwarf #2
Jennifer Darling
Pollywinkle (voice)
Malcolm McDowell
Baron Von Ghoulish
Carol Kane
Mrs. Claus
Gilbert Gottfried
Santa Claus
Betty White
Mrs. Doolin (voice)
Susanne Blakeslee
Crabina / Mom #1 (voice)
Chris Cox
Principal Goodvibes (voice)
Julian Stone
Sir Raven / Man (voice)
Dorian Harewood
Burrito/News Reporter (voice)