
An imaginative elephant named Horton hears a faint cry for help coming from a tiny speck of dust floating through the air. Horton suspects there may be life on that speck and despite a surrounding community, who thinks he has lost his mind, he is determined to save the tiny particle.

Horton (voice)

Mayor (voice)

Kangaroo (voice)

Vlad (voice)

Morton (voice)

Councilman / Yummo Wickersham (voice)

Dr. Mary Lou Larue (voice)

Tommy (voice)

Sally O'Malley (voice)

Mrs. Quilligan (voice)

Narrator (voice)

Rudy (voice)

Miss Yelp (voice)

JoJo (voice)
Hedy / Hooly (voice)

Old Time Who (voice)
Helen (voice)
Heather (voice)

Town Cryer (voice)

Who (voice)

Another Who (voice)

Who Mom (voice)

Hildy / Holly (voice)

Who Kid (voice)

Wickersham Guard 1 (voice)

Willie Bear (voice)
Joe (voice)

Who Girl (voice)

Helga (voice)

Obnoxious Who (voice)

Katie (voice)
Heidi / Haley (voice)
Hanna (voice)

Glummox Mom (voice)
Wickersham Guard 2 (voice)

Angela (voice)

Jessica (voice)

The Dentist (voice)
Who Child #1 (voice)

Additional Voices (voice)

Additional Voices (voice)
Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)
Additional Voice (voice)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)
Additional Voices (voice)

Additional Voices (voice)

Jojo (singing voice) (uncredited)

(voice) (uncredited)

Director

Director
Producer

Original Music Composer
Editor

Screenplay

Screenplay
Producer

Executive Producer

Executive Producer

Executive Producer

Animation
Head of Story
Lighting Artist
Post Production Supervisor
Visual Development
Casting
Lighting Director
Storyboard Artist

Storyboard Artist
Storyboard Artist

Storyboard Artist
Storyboard Artist
Storyboard Artist
Storyboard Artist
Storyboard Artist

Storyboard Artist
Storyboard Artist
Additional Storyboarding

Additional Storyboarding
Additional Storyboarding
Additional Storyboarding
Additional Storyboarding

Additional Storyboarding

Additional Storyboarding
Additional Storyboarding

Book
Schedule Coordinator

Additional Storyboarding

Storyboard Artist

Art Direction

Sound Designer
Set Designer
Set Designer
Set Designer
Set Designer
Set Designer
Set Designer
Senior Visual Effects Supervisor
Senior Visual Effects Supervisor
Senior Visual Effects Supervisor

Supervising Sound Editor

Supervising Sound Editor
Supervising Music Editor
Senior Visual Effects Supervisor

Sound Effects Editor