Freddie Highmore Jared Grace / Simon Grace
Ron Perlman Red Cap (voice) (uncredited)
Nick Nolte Mulgarath
Seth Rogen Hogsqueal (voice)
David Strathairn Arthur Spiderwick
Mary-Louise Parker Helen Grace
Andrew McCarthy Richard Grace
Sarah Bolger Mallory Grace
Martin Short Thimbletack (voice)
Karey Kirkpatrick Producer, Screenplay
Mark Waters Director
James Horner Original Music Composer
Andy Nelson Sound Re-Recording Mixer
Phil Tippett Animation Supervisor
Larry Franco Producer
Jim Passon Color Timer
David Berenbaum Screenplay
Joanna Johnston Costume Design
Joan Plowright Aunt Lucinda Spiderwick
Robin D. Cook Local Casting
Caleb Deschanel Director of Photography
Tyler Patrick Jones Additional Performer
Michael Kahn Editor
Anna Behlmer Sound Re-Recording Mixer
Fred Berger Production Assistant
Sherry Hitch Digital Compositor
Mark Mangini Sound Designer
Shawn Kelly Animation
Julie Feiner Dialogue Editor
Adrien Morot Special Effects Makeup Artist
Francois Archambault Steadicam Operator, Camera Operator
Joey Box Stunt Coordinator
Piero Mura Sound Effects Editor
Marci Liroff Casting
Ellen Goldsmith-Vein Producer
Mark Canton Producer
Kimi Webber Script Supervisor
Jean-Pierre Paquet Art Direction
Bob E. Krattiger Gaffer
Ben Rosenblatt Post Production Supervisor
Steve Blalock Stunt Coordinator
Mark Coffey Assistant Sound Editor
Marie-Elaine Bailly Production Coordinator
Christopher T. Welch Supervising ADR Editor, Supervising Dialogue Editor
Hélène Lamarre Art Department Coordinator
Louis Marion Sound Mixer
Alain Brochu Head Carpenter
Michael Lantieri Special Effects Supervisor
Alan Howarth Special Sound Effects
Jim Henrikson Music Editor
David McKeown Stunt Coordinator
John Sayles Screenplay
Julia Pistor Executive Producer
Brian Kalin O'Connell Character Designer
Nathalie Girard Stunts
Louis Craig Special Effects Supervisor
Peter J. Silbermann Unit Publicist
Mark Binder Special Sound Effects
Benjamin Rosenberg First Assistant Director
Avram D. Gold Dialogue Editor
Takashi Seida Still Photographer
Robert Stecko Camera Operator
Daniel Hamelin Set Decoration
Andy Sisul First Assistant Sound Editor
Pablo Helman Visual Effects Supervisor
Bethan Mowat Second Assistant Director
Rodrigo Ortiz-Parraga Assistant Sound Editor
Kevin Yagher Makeup Effects
Caroline Aquin Special Effects Makeup Artist
Christa Munro Art Direction
James D. Bissell Production Design
Martin Allan Kloner Visual Effects Editor