: Plays the resilient mother, Helen Grace.
: Features as the eldest sister and fencing expert, Mallory.
The story begins when the Grace family—mother Helen, sister Mallory, and twin brothers Jared and Simon—moves from New York to the decaying . Jared soon discovers a hidden room belonging to his great-great-uncle, Arthur Spiderwick, and finds a secret "Field Guide to the Fantastical World Around You".
: Portrays both twin brothers, Jared and Simon Grace, a performance that received widespread critical acclaim.
The film is celebrated for its impressive cast and dual-role performances: