Ron Perlman Red Cap (voice) (uncredited)
Seth Rogen Hogsqueal (voice)
Mary-Louise Parker Helen Grace
Freddie Highmore Jared Grace / Simon Grace
Andrew McCarthy Richard Grace
Nick Nolte Mulgarath
Martin Short Thimbletack (voice)
Sarah Bolger Mallory Grace
David Strathairn Arthur Spiderwick
Andy Nelson Sound Re-Recording Mixer
David Berenbaum Screenplay
Joan Plowright Aunt Lucinda Spiderwick
Anna Behlmer Sound Re-Recording Mixer
Nathalie Girard Stunts
Tyler Patrick Jones Additional Performer
Bob E. Krattiger Gaffer
James Horner Original Music Composer
Jim Henrikson Music Editor
Caleb Deschanel Director of Photography
Mariah Inger Nurse
Phil Tippett Animation Supervisor
Josette Perrotta Co-Producer, Unit Production Manager
Dick Bernstein Music Editor
Mark Waters Director
Robin D. Cook Local Casting
Mark Canton Producer
Daniel Hamelin Set Decoration
Karey Kirkpatrick Producer, Screenplay
John Sayles Screenplay
Joanna Johnston Costume Design
Joey Box Stunt Coordinator
Larry Franco Producer
James D. Bissell Production Design
Tod Fennell Helen's Co-Worker
Frédéric Amblard Set Designer
Jordy Benattar Young Lucinda Spiderwick
Kevin Yagher Makeup Effects
Michael Kahn Editor
Julia Pistor Executive Producer
Jim Passon Color Timer
Bruno Gatien Special Effects Makeup Artist
Martine Giguère-Kazemirchuk Set Decoration
Lucie Tremblay Set Designer
Michael Lantieri Special Effects Supervisor
Alan Howarth Special Sound Effects
Louis Craig Special Effects Supervisor
Brian Kalin O'Connell Character Designer
Piero Mura Sound Effects Editor
David McKeown Stunt Coordinator
Philippe Lord Set Decoration
Francois Archambault Steadicam Operator, Camera Operator
Benjamin Rosenberg First Assistant Director
Christopher Raimo Visual Effects Producer
Tony DiTerlizzi Executive Producer, Book
Fred Berger Production Assistant
Jim Kontos Unit Manager
Pablo Helman Visual Effects Supervisor
Adrien Morot Special Effects Makeup Artist
Tom C. Peitzman Co-Producer
Katina Waters Stunts
Christopher T. Welch Supervising ADR Editor, Supervising Dialogue Editor
Bethan Mowat Second Assistant Director
Ralph Osborn Dialogue Editor
Mark Binder Special Sound Effects
Ellen Goldsmith-Vein Producer
Kyle Switzer Additional Performer
Takashi Seida Still Photographer
Mark Mangini Sound Designer
Holly Black Executive Producer, Book
Ben Rosenblatt Post Production Supervisor
Isabelle Guay Supervising Art Director
Julie Feiner Dialogue Editor