Jim Carrey

Character: Grinch

Taylor Momsen

Character: Cindy Lou Who

Jeffrey Tambor

Character: Mayor Augustus Maywho

Christine Baranski

Character: Martha May Whovier

Bill Irwin

Character: Lou Lou Who

Molly Shannon

Character: Betty Lou Who

Clint Howard

Character: Whobris

Josh Ryan Evans

Character: 8-Year-Old Grinch

Mindy Sterling

Character: Clarnella

Bryce Dallas Howard

Character: Surprised Who

Lacey Kohl

Character: Christina Whoterberry

Rachel Winfree

Character: Rose

Rance Howard

Character: Elderly Timekeeper

Jeremy Howard

Character: Drew Lou Who

T.J. Thyne

Character: Stu Lou Who

Nadja Pionilla

Character: Junie

Jim Meskimen

Character: Officer Wholihan

Michael Dahlen

Character: Customer

David Costabile

Character: Biker Who

Mary Stein

Character: Miss Rue Who

James Ritz

Character: Crazy Mose

Deep Roy

Character: Post Office Clerk

Jessica Sara

Character: Sophie

Mason Lucero

Character: Who Boy

Ben Bookbinder

Character: 8-Year-Old Augustus Maywho

Michaela Gallo

Character: Who Schoolgirl

Landry Allbright

Character: 8-Year-Old Martha May Whovier

Reid Kirchenbauer

Character: 8-Year-Old Whobris

Rebecca Chace

Character: Shopper

Suzanne Krull

Character: Shopper

Steve Kehela

Character: Shopper

Lillias White

Character: Shopper

Rain Pryor

Character: Shopper

John Alexander

Character: Shopper

Kevin Isola

Character: Tree Trimmer

Gavin Grazer

Character: Yodeler

Walter Franks

Character: Clerk

Verne Troyer

Character: Band Member

Clayton Martinez

Character: Cook

Q'orianka Kilcher

Character: Little Choir Member

Caroline Williams

Character: Tiny Who Woman

John Short

Character: Tiny Who Man

Grainger Esch

Character: Near Miss Who

Eva Burkley

Character: Pudding Chef

Rick Baker

Character: Puppeteer

Bill Sturgeon

Character: Puppeteer

Mark Setrakian

Character: Puppeteer

Jurgen Heimann

Character: Puppeteer

Tim Blaney

Character: Puppeteer

Charles Croughwell

Character: Balloon Who

Frank Welker

Character: Max the Dog (voice)

Anthony Hopkins

Character: Narrator (voice)