Chris Massoglia
Darren Shan
John C. Reilly
Larten Crepsley
Josh Hutcherson
Steve
Patrick Fugit
Evra the Snake Boy
Salma Hayek Pinault
Madame Truska
Jessica Carlson
Rebecca
Michael Cerveris
Mr. Tiny
Ray Stevenson
Murlaugh
Morgan Saylor
Annie
Don McManus
Mr. Shan
Ken Watanabe
Mr. Tall
Orlando Jones
Alexander Ribs
Frankie Faison
Rhamus Twobellies
Willem Dafoe
Gavner Purl
Kristen Schaal
Gertha Teeth
Patrick Breen
Mr. Kersey
Tom Woodruff Jr.
Wolfman
Jane Krakowski
Corma Limbs
Drew Rin Varick
Loaf Head
Colleen Camp
Mrs. Shan
Lo Graham
Student in Hallway and Classroom
Beau Holden
Trucker
Trey Burvant
Singing Dad
Daniel Newman
Pete
Brandon Molale
Vampaneze (uncredited)
Gino Galento
Madame Truska's Man (uncredited)
Sam Medina
Madame Truska's Man (uncredited)
Cody Klop
Voice