Horton Hears a Who!

Jim Carrey

as

Horton (voice)

Steve Carell

as

Mayor (voice)

Carol Burnett

as

Kangaroo (voic...

Will Arnett

as

Vlad (voice)

Seth Rogen

as

Morton (voice)

Dan Fogler

as

Councilman / Y...

Isla Fisher

as

Dr. Mary Lou L...

Jonah Hill

as

Tommy (voice)

Amy Poehler

as

Sally O'Malley...

Jaime Pressly

as

Mrs. Quilligan...

Charles Osgood

as

Narrator (voic...

Josh Flitter

as

Rudy (voice)

Niecy Nash-Bet...

as

Miss Yelp (voi...

Jesse McCartney

as

JoJo (voice)

Shelby Adamows...

as

Hedy / Hooly (...

Jack Angel

as

Old Time Who (...

Caitlin Rose A...

as

Helen (voice)

Emily Anderson

as

Heather (voice)

Jan Rabson

as

Town Cryer (vo...

John Cygan

as

Who (voice)

Jess Harnell

as

Another Who (v...

Debi Derryberry

as

Who Mom (voice)

Samantha Droke

as

Hildy / Holly ...

Karen Disher

as

Who Kid (voice)

Marshall Efron

as

Wickersham Gua...

Bill Farmer

as

Willie Bear (v...

Jason Fricchio...

as

Joe (voice)

Heather Golden...

as

Who Girl (voic...

Selena Gomez

as

Helga (voice)

Jimmy Hayward

as

Obnoxious Who ...

Joey King

as

Katie (voice)

Christina Mart...

as

Heidi / Haley ...

Ellie Martino

as

Hanna (voice)

Laraine Newman

as

Glummox Mom (v...

Tim Nordquist

as

Wickersham Gua...

Colleen O'Shau...

as

Angela (voice)

Laura Ortiz

as

Jessica (voice)

Joe Pasquale

as

The Dentist (v...

Connor Anderson

as

Who Child #1 (...

Isabella Acres

as

Additional Voi...

Bob Bergen

as

Additional Voi...

Jeff Biancalana

as

Additional Voi...

Madison Davenp...

as

Additional Voi...

Teresa Ganzel

as

Additional Voi...

Kathy Graves T...

as

Additional Voi...

Sherry Lynn

as

Additional Voi...

Danny Mann

as

Additional Voi...

Mona Marshall

as

Additional Voi...

Mickie McGowan

as

Additional Voi...

Madison Pettis

as

Additional Voi...

Grace Rolek

as

Additional Voi...

Jennessa Rose

as

Additional Voi...

Ariel Winter

as

Additional Voi...

Fletcher Sheri...

as

Jojo (singing ...