Jim Carrey Grinch
Anthony Hopkins Narrator (voice)
Frank Welker Max the Dog (voice)
Ron Howard Producer, Director
Q'orianka Kilcher Little Choir Member
Bryce Dallas Howard Surprised Who
David Costabile Biker Who
Christine Baranski Martha May Whovier
Mindy Sterling Clarnella
Dr. Seuss Book
Clint Howard Whobris
Gregg Smrz Stunts
Chris O'Hara Stunts
Molly Shannon Betty Lou Who
Jeffrey Tambor Mayor Augustus Maywho
Aldric La'Auli Porter First Assistant Director, Associate Producer
T.J. Thyne Stu Lou Who
Darlene Ava Williams Stunt Double
Scott Hecker Supervising Sound Editor
Lauren E. Polizzi Art Direction
Clayton J. Barber Stunts
Taylor Momsen Cindy Lou Who
Jim Meskimen Officer Wholihan
James Horner Original Music Composer
Brian Grazer Producer
Rance Howard Elderly Timekeeper
Landry Allbright 8-Year-Old Martha May Whovier
Jeremy Howard Drew Lou Who
Daniel P. Hanley Editor
Kenneth L. Johnson Sound Effects Editor
Bill Irwin Lou Lou Who
Gail Rowell-Ryan Key Hair Stylist
Deep Roy Post Office Clerk
Joe E. Rand Music Editor
Rick Baker Puppeteer, Makeup Effects Designer
Kevin Scott Mack Visual Effects Supervisor
Terry Notary Stunts
Laura Albert Stunts
Christopher Flick Foley Editor
Verne Troyer Band Member
Jane Jenkins Casting Director
Judith M. Brown Studio Teacher
Charles Croughwell Stunt Coordinator, Balloon Who
Thomas J. Larsen Stunts
Caroline Williams Tiny Who Woman
Ve Neill Makeup Artist
Rachel Wyn Dunn Compositors
Lisa Hoyle Stunt Double
Jeffrey Price Screenplay
Marc Dominic Rienzo Compositing Artist
Suzanne Krull Shopper
Janet Hirshenson Casting Director
Bill Corso Makeup Artist
Kazu Hiro Makeup Artist
Nina Paskowitz Hairstylist
Ben Scott Stunts
Dan Bronson Costume Supervisor
Peter S. Seaman Screenplay
Pat Banta Stunts
Jane Oshita Stunts
John Short Tiny Who Man
Kevin Abercrombie Stunts
Tabby Hanson Stunt Double
Dan Webster Supervising Art Director
John Alexander Shopper
Rita Ryack Costume Design
Richie Gaona Stunts
Michael J. Malone Location Manager
Tim Blaney Puppeteer
Rachel Winfree Rose
Jessica Sara Sophie
Jim Henrikson Music Editor