"A recently-widowed science fiction writer considers whether to adopt a hyper-imaginative 6-year-old abandoned and socially-rejected boy who says he's really from Mars."
John Cusack
as David
Bobby Coleman
as Dennis
Amanda Peet
as Harlee
Sophie Okonedo
as Sophie
Joan Cusack
as Liz
Oliver Platt
as Jeff
Richard Schiff
as Lefkowitz
Taya Calicetto
as Esther
David Kaye
as Andy
Braxton Bonneville
as Nicholas
Samuel Charles
as Jonas
Zak Ludwig
as Young David
Samuel Patrick Chu
as Boy at Group Home
Ryan Morrissette
Nimet Kanji
as Housekeeper
Howard Hesseman
as Dr. Berg
Carmen Moore
as Miss Margie
Beverley Breuer
as Mrs. Tompkins
Jonathan Holmes
as Dracoban Director
Andrew McIlroy
as Earl of Dracoban
Kimani Ray Smith
as Draconian Warrior
Peter Bryant
as Policeman at School
David James Lewis
as Leonard
Edmond Kato Wong
as Linus
Joanna Reid
as Cashier
Simon Hayama
as Baseball Fan
Lauro David Chartrand-DelValle
as Tough Cop (Stunt / Crash)
Alberto Ghisi
as Tough Boy at School
Hrothgar Mathews
as Committee Member
Robert Clarke
as Observatory Director
Daniel Pepper
as Cop (David's House)
Tony Alcantar
as Barber
Angela Besharah
as Mary in Photos
Suzy Joachim
as Jeff's Date at BBQ
Anjelica Huston
as Mimi
Hugo Luczyc-Wyhowski
Production Design
Bruce Green
Editor
Jonathan Tolins
Screenplay
Menno Meyjes
Director
Corey Sienega
Producer
Seth Bass
Ed Elbert
Michael Dennison
Costume Design
David Kirschner
Robert D. Yeoman
Director of Photography
Angela Uyeda
Stunts
Melissa R. Stubbs
Rorelee Tio
Stunt Coordinator
Doug Chapman
Aaron Zigman
Original Music Composer
Rick Pearce
Chris Beach
Assistant Art Director
Mike Drake
Executive Producer
Toby Emmerich
David Gerrold
Mark Kaufman
Matt Moore