| Person | Type | Job | Role(s) |
|---|---|---|---|
 Aldric La'Auli Porter | Crew | Production | Associate Producer, First Assistant Director |
 Allen Hall | Crew | Crew | Special Effects Coordinator |
 Ben Folds | Crew | Sound | Songs |
 Bill Corso | Crew | Costume & Make-Up | Makeup Artist |
Bob Camp | Crew | Art | Storyboard Artist |
Bonnie Greenberg | Crew | Sound | Music Supervisor |
 Brian Grazer | Crew | Production | Producer |
 Busta Rhymes | Crew | Sound | Songs |
 Charles Croughwell | Crew | Crew | Stunt Coordinator |
Dan Bronson | Crew | Costume & Make-Up | Costume Supervisor |
Dan Webster | Crew | Art | Supervising Art Director |
Daniel P. Hanley | Crew | Editing | Editor |
David Hyman | Crew | Directing | Second Assistant Director |
David Womark | Crew | Production | Unit Production Manager, Associate Producer |
 Deborah Rutherford | Crew | Costume & Make-Up | Makeup Artist |
Debra Wolff | Crew | Visual Effects | VFX Editor |
Donald Peterman | Crew | Camera | Director of Photography |
 Dr. Seuss | Crew | Writing | Book |
 Ed Robertson | Crew | Sound | Songs |
Eric A. Norris | Crew | Sound | Sound Effects Editor |
 Faith Hill | Crew | Sound | Songs |
Gail Rowell-Ryan | Crew | Costume & Make-Up | Key Hair Stylist |
Greg Camp | Crew | Sound | Songs |
 James Horner | Crew | Sound | Original Music Composer, Songs |
 Jane Jenkins | Crew | Production | Casting Director |
 Janet Hirshenson | Crew | Production | Casting Director |
 Jeffrey Price | Crew | Writing | Screenplay |
Jim Henrikson | Crew | Sound | Music Editor |
Joe E. Rand | Crew | Sound | Music Editor |
John LaSalandra | Crew | Sound | Music Editor |
Julian Levi | Crew | Visual Effects | Visual Effects Producer |
Kazu Hiro | Crew | Costume & Make-Up | Makeup Artist |
 Kevin Scott Mack | Crew | Visual Effects | Visual Effects Supervisor |
Kurt Williams | Crew | Visual Effects | Visual Effects Supervisor, Visual Effects Producer |
Lauren E. Polizzi | Crew | Art | Art Direction |
Leslie Park | Crew | Directing | Script Supervisor |
Linda Fields | Crew | Production | Associate Producer |
 Lisa Hoyle | Crew | Crew | Stunt Double |
Louisa Velis | Crew | Production | Associate Producer |
 Mariah Carey | Crew | Sound | Songs |
Merideth Boswell | Crew | Art | Set Decoration |
Michael Corenblith | Crew | Art | Production Design |
Michael Geisler | Crew | Sound | Sound Effects Editor |
Mike Hill | Crew | Editing | Editor |
Nina Paskowitz | Crew | Costume & Make-Up | Hairstylist |
Patricia Miller | Crew | Costume & Make-Up | Key Hair Stylist |
 Paul O'Neill | Crew | Sound | Songs |
 Peter S. Seaman | Crew | Writing | Screenplay |
Rachel Wyn Dunn | Crew | Crew | Compositors |
 Rick Baker | Crew | Costume & Make-Up | Makeup Effects Designer |
Rita Ryack | Crew | Costume & Make-Up | Costume Design |
 Ron Howard | Crew | Directing | Director, Producer |
Scott A. Hecker | Crew | Sound | Supervising Sound Editor |
Steve Harwell | Crew | Sound | Songs |
 Steven Page | Crew | Sound | Songs |
 Todd Hallowell | Crew | Production | Executive Producer, Second Unit Director |
Toni G | Crew | Costume & Make-Up | Makeup Department Head |
 Ve Neill | Crew | Costume & Make-Up | Makeup Artist |
Barenaked Ladies | Crew | Sound | Songs |
Barry E. Jackson | Crew | Art | Conceptual Design |
Joyce Cox | Crew | Visual Effects | Visual Effects Producer |
Mark Oliver Everett | Crew | Sound | Songs |
Christopher Flick | Crew | Sound | Foley Editor |
Michael J. Malone | Crew | Production | Location Manager |
David MacMillan | Crew | Sound | Production Sound Mixer |
Brian Thomas Nist | Crew | Sound | Sound Effects Editor |
 Robert Kinkel | Crew | Sound | Songs |
Kenneth L. Johnson | Crew | Sound | Sound Effects Editor |
Mike Anderson | Crew | Camera | Key Grip |
Michael Key | Crew | Costume & Make-Up | Makeup Artist |
 Jon Oliva | Crew | Sound | Songs |
 Anthony Hopkins | Cast | Actor | Narrator (voice) |
 Bill Irwin | Cast | Actor | Lou Lou Who |
Bill Sturgeon | Cast | Puppeteer | |
 Bryce Dallas Howard | Cast | Actress | Surprised Who |
 Caroline Williams | Cast | Actress | Tiny Who Woman |
Charles Croughwell | Cast | Actor | Balloon Who |
 Christine Baranski | Cast | Actress | Martha May Whovier |
Clayton Martinez | Cast | Cook | |
 Clint Howard | Cast | Actor | Whobris |
 David Costabile | Cast | Actor | Biker Who |
 Deep Roy | Cast | Actor | Post Office Clerk |
 Frank Welker | Cast | Actor | Max the Dog (voice) |
 Gavin Grazer | Cast | Actor | Yodeler |
 James Ritz | Cast | Actor | Crazy Mose |
 Jeffrey Tambor | Cast | Actor | Mayor Augustus Maywho |
 Jeremy Howard | Cast | Actor | Drew Lou Who |
 Jessica Sara | Cast | Actress | Sophie |
 Jim Carrey | Cast | Actor | Grinch |
 Jim Meskimen | Cast | Actor | Officer Wholihan |
 John Alexander | Cast | Actor | Shopper |
 John Short | Cast | Actor | Tiny Who Man |
 Josh Ryan Evans | Cast | Actor | 8-Year-Old Grinch |
 Kevin Isola | Cast | Actor | Tree Trimmer |
 Lacey Kohl | Cast | Actress | Christina Whoterberry |
 Landry Allbright | Cast | Actress | 8-Year-Old Martha May Whovier |
 Lillias White | Cast | Actress | Shopper |
 Mary Stein | Cast | Actress | Miss Rue Who |
 Mason Lucero | Cast | Actor | Who Boy |
 Michaela Gallo | Cast | Actress | Who Schoolgirl |
 Mindy Sterling | Cast | Actress | Clarnella |
 Molly Shannon | Cast | Actress | Betty Lou Who |
 Nadja Pionilla | Cast | Actress | Junie |
 Q'orianka Kilcher | Cast | Actress | Little Choir Member |
 Rachel Winfree | Cast | Actress | Rose |
 Rain Pryor | Cast | Actress | Shopper |
 Rance Howard | Cast | Actor | Elderly Timekeeper |
Rick Baker | Cast | Actor | Puppeteer |
 Steve Kehela | Cast | Actor | Shopper |
 Suzanne Krull | Cast | Actress | Shopper |
 T.J. Thyne | Cast | Actor | Stu Lou Who |
 Taylor Momsen | Cast | Actress | Cindy Lou Who |
 Verne Troyer | Cast | Actor | Band Member |
 Walter Franks | Cast | Clerk | |
 Tim Blaney | Cast | Actor | Puppeteer |
 Rebecca Chace | Cast | Shopper | |
Eva Burkley | Cast | Pudding Chef | |
Michael Dahlen | Cast | Customer | |
 Mark Setrakian | Cast | Puppeteer | |
Jurgen Heimann | Cast | Puppeteer | |
 Reid Kirchenbauer | Cast | 8-Year-Old Whobris | |
 Ben Bookbinder | Cast | Actor | 8-Year-Old Augustus Maywho |
Grainger Esch | Cast | Near Miss Who | |
| Person | Type | Job | Role(s) |
