Horton Hears a Who!

Horton Hears a Who! Cast

54 cast members · 38 with popularity data

Most Popular Horton Hears a Who! Cast Members

Seth Rogen is currently the most popular Horton Hears a Who! cast member online with a Attention Score of 7.2. 7 of 54 cast members rank in the top 1,000 actors online today. Updated July 12, 2026.

Dr. Mary Lou Larue (voice)

Councilman / Yummo Wickersham (voice)

Kangaroo (voice)

Sally O'Malley (voice)

Glummox Mom (voice)

Additional Voices (voice)

Mrs. Quilligan (voice)

Jesse McCartney

Miss Yelp (voice)

Additional Voices (voice)

Madison Davenport

Additional Voices (voice)

#10,214 overall

Another Who (voice)

#12,576 overall

Colleen O'Shaughnessey

#12,616 overall

Debi Derryberry

Who Mom (voice)

#13,367 overall

Willie Bear (voice)

#15,824 overall

Additional Voices (voice)

#17,536 overall

Old Time Who (voice)

#19,292 overall

Additional Voices (voice)

#21,208 overall

Additional Voices (voice)

#21,628 overall

The Dentist (voice)

#24,283 overall

Narrator (voice)

#26,802 overall

#27,708 overall

#29,957 overall

Town Cryer (voice)

#30,494 overall

Heather Goldenhersh

Who Girl (voice)

#32,386 overall

Additional Voices (voice)

#32,844 overall

Obnoxious Who (voice)

#36,367 overall

Additional Voices (voice)

#36,384 overall

Additional Voices (voice)

#36,670 overall

Wickersham Guard 1 (voice)

#40,162 overall

Who Kid (voice)

#45,360 overall

Shelby Adamowsky

Hedy / Hooly (voice)

Caitlin Rose Anderson

Heather (voice)

Hildy / Holly (voice)

Jason Fricchione

Christina Martino

Heidi / Haley (voice)

Wickersham Guard 2 (voice)

Jessica (voice)

Connor Anderson

Who Child #1 (voice)

Jeff Biancalana

Additional Voices (voice)

Kathy Graves Toon

Additional Voice (voice)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)

Fletcher Sheridan

Jojo (singing voice) (uncredited)

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