Trailer
 | Tim Allen as Jack Sheppard |
 | Courteney Cox as Marsha Holloway |
 | Chevy Chase as Dr. Grant |
 | Spencer Breslin as Tucker Willams / Mega-Boy |
 | Kevin Zegers as Connor Shepard / Concussion |
 | Kate Mara as Summer Jones / Wonder |
 | Michael Cassidy as Dylan West / Houdini |
 | Ryan Whitney as Cindy Collins / Princess |
 | Rip Torn as Larraby |
 | Cornelia Guest as Cindy's Mom |
 | Ashton Moio as Halloween Bully |
 | Hunter Aarniokoski as Prince |
 | Thomas F. Wilson as Dylan's Teacher |
 | Ridge Canipe as Mean Bully |
 | Danny McCarthy as Meaner Bully |
 | David L. Lander as Wendy's Employee |
 | Lauren Sánchez Bezos as Reporter |
 | Willie Garson as Dick |
 | Jane Hajduk as Researcher Taylor |
| Tommy Chang as Martial Arts Instructor |
 | Zoe Doyle as Researcher |
| Tim Nasiopoulos as Large Agent |
| Deanna DeLisle as Cheerleader |
| Meg Anderson as Cheerleader |
 | Kendra Rose Montagna as Cheerleader |
 | Aaron Abrams as Corporal Lipscombe (uncredited) |
| Stacey Alfano as Stefanie (uncredited) |
 | Nick Baga as Fat Swimmer (uncredited) |
 | Alexis Bledel as Ace (uncredited) |
 | Darryl Dinn as Lab Researcher (uncredited) |
| Allison Gordon as Girl with Big Hair (uncredited) |
| Sadey Paige Nifong as Kid In Pool (uncredited) |
| Andrea Savo as Carmen / Big haired Latina (uncredited) |
| Writing | |
| Adam Rifkin | Screenplay |
Directing | |
| Peter Hewitt | Director |
Writing | |
| David Berenbaum | Screenplay |
Crew | |
| Luci Romberg | Stunts |
Visual Effects | |
| Angie Jones | Animation |
Art | |
| Scott Nifong | Property Master |
Crew | |
| Bret Kiene | Stunts |
| Duncan McLeod | Stunts |
Art | |
| Tom Jung | Storyboard Artist |
| Walter Klassen | Special Props |
Crew | |
| Jung-Yul Kim | Stunts |
| Bryan Renfro | Stunts |
Art | |
| Meaghan Lynch | Assistant Art Director |
| Melissa Olson | Props |
Crew | |
| Jeff Chumas | Stunts |
| Larry Holt | Stunts |
| Ashton Moio | Stunts |
Art | |
| Jennifer Heimpel | Assistant Art Director |
Crew | |
| Glenn Locke | Scenic Artist |
Art | |
| Jim Magdaleno | Storyboard Artist |
Crew | |
| Kelly Bellini | Stunts |
| Dan Brown | Stunts |
| Randy Butcher | Stunts |
| Ciara Jones | Stunt Double |
Art | |
| Rob McCallum | Storyboard Artist |
Crew | |
| Tommy Chang | Stunt Coordinator |
| Georgia Leva | Stunt Double |
Art | |
| Rob McCallum | Concept Artist |
Crew | |
| Brad Bunn | Stunts |
| T. Ryan Mooney | Stunts |
| Nick Alachiotis | Stunts |
| Matt Birman | Stunt Coordinator |
Art | |
| Darryl Henley | Storyboard Artist |
Crew | |
| Jamie Jones | Stunts |
Costume & Make-Up | |
| Steve Middlebrook | On Set Dresser |
Crew | |
| Hubert Boorder | Stunts |
| Liise Keeling | Stunts |
| Bonnie Morgan | Stunts |
Art | |
| Mayumi Konishi-Valentine | Set Designer |
Crew | |
| Cheryl Quiacos | Stunts |
Art | |
| Kari Measham | Set Decoration Buyer |
Crew | |
| Blair Johannes | Stunts |
| Billy Oliver | Stunts |
| Kevin Rushton | Stunts |
| Scott Leva | Stunts |
| John Moio | Stunt Coordinator |
Art | |
| David Hirschfield | Set Designer |
Crew | |
| Darren McGuire | Stunts |
| John Stead | Stunts |
| Booboo Stewart | Utility Stunts |
| Bob Yerkes | Stunts |
| Todd Warren | Stunt Double |
| Peter Yan | Stunts |
| Fivel Stewart | Stunt Double |
| Kenny Searle | Utility Stunts |
| Ron Webber | Stunts |
Costume & Make-Up | |
| Ha Nguyen | Costume Design |
Production | |
| Jennifer Todd | Producer |
Editing | |
| Lawrence Jordan | Editor |
Writing | |
| Adam Rifkin | Screenstory |
Art | |
| Clive Thomasson | Set Decoration |
Writing | |
| Jason Lethcoe | Novel |
Production | |
| Julie Ragland | Co-Producer |
Directing | |
| Susan Marucci | Script Supervisor |
Production | |
| Suzanne Todd | Producer |
| Nick Osborne | Executive Producer |
| Trevor Engelson | Executive Producer |
Costume & Make-Up | |
| Virginia Burton | Costume Supervisor |
Production | |
| Joseph Boccia | Associate Producer |
| John Papsidera | Casting |
Camera | |
| David Tattersall | Director of Photography |
Production | |
| Neil Machlis | Executive Producer |
Sound | |
| Christophe Beck | Original Music Composer |
Production | |
| Todd Garner | Producer |
Art | |
| Tamara Deverell | Art Direction |
| Barry Chusid | Production Design |
Sound | |
| Robert Scherer | Production Sound Mixer |
Camera | |
| Ava Gerlitz | Still Photographer |
| Tim Merkel | Steadicam Operator |
Art | |
| Joshu de Cartier | Art Direction |
Costume & Make-Up | |
| Christine A. Hart | Makeup Department Head |
Directing | |
| Jeff J.J. Authors | First Assistant Director |
Art | |
| David Best | Graphic Designer |
Crew | |
| Peter Constantinides | Carpenter |
Costume & Make-Up | |
| Carol Hartwick | Assistant Hairstylist |
Directing | |
| Eric S. Potechin | Second Assistant Director |
Costume & Make-Up | |
| Ronnie Specter | Makeup Artist |
Production | |
| Robin M. Reelis | Production Supervisor |
| Joseph Boccia | Unit Production Manager |
Costume & Make-Up | |
| David LeRoy Anderson | Special Effects Makeup Artist |
Directing | |
| Chamonix Bosch | Second Second Assistant Director |
Costume & Make-Up | |
| Tim Mogg | Makeup Artist |
Directing | |
| Simon Board | First Assistant Director |
| Adam Bocknek | Third Assistant Director |
Costume & Make-Up | |
| Vincent Sullivan | Hair Department Head |
Crew | |
| Erica Frauman | Post Production Supervisor |
Costume & Make-Up | |
| Hallie D'Amore | Makeup Artist |
Crew | |
| Peter Aquilina | Scenic Artist |
Art | |
| Rob Ballantyne | Storyboard Artist |
Costume & Make-Up | |
| Francesca Paris | Hairstylist |
| Toni-Ann Walker | Hairstylist |
Directing | |
| Tyler Delben | Third Assistant Director |
Costume & Make-Up | |
| Mario Cacioppo | Assistant Makeup Artist |
Art | |
| Paul Dolgov | Painter |
| J.P. Dame | Set Dresser |
| David G. Fremlin | First Assistant Art Direction |
| Jason Graham | First Assistant Art Direction |
| William Cheng | First Assistant Art Direction |
| Adrian Hardy | Set Dresser |
| Laura Evans | Set Decoration Buyer |
| Ryan Galiher | Props |
Crew | |
| Kenneth Heimer | Prop Maker |
Art | |
| Beth Gilinsky | Set Decorating Coordinator |
| Ravi Bansal | Concept Artist |
Sound | |
| Addison Teague | Sound Effects Editor |
Crew | |
| Shelley Cook | Stunt Driver |
Art | |
| Lisa Shaftel | Property Master |
Sound | |
| Coya Elliott | First Assistant Sound Editor |
Visual Effects | |
| Mark Owen Forker | Visual Effects Supervisor |
Sound | |
| Chris Scarabosio | Sound Designer |
| Matthew Wood | Supervising Sound Editor |
Visual Effects | |
| Mark Dornfeld | Visual Effects Supervisor |
| Michael Melchiorre | Digital Compositor |
Crew | |
| Glenn Hughes | Picture Car Coordinator |
Visual Effects | |
| Paul Lambert | Compositing Lead |
Production | |
| Danny McNair | Travel Coordinator |
Crew | |
| Vincent Cirelli | CG Supervisor |
| Mark Rice | Pyrotechnician |
Writing | |
| J. David Stem | Writer |
| David N. Weiss | Writer |
