Horton Hears A Who:
Cast (Cast overview, first billed only)
Jim Carrey ... Horton (voice)
Steve Carell ... The Mayor of Whoville (voice)
Carol Burnett ... Kangaroo (voice)
Will Arnett ... Vlad (voice)
Seth Rogen ... Morton (voice)
Dan Fogler ... Councilman / Yummo Wickersham (voice)
Isla Fisher ... Dr. Mary Lou Larue (voice)
Jonah Hill ... Tommy (voice)
Amy Poehler ... Sally O'Malley (voice)
Jaime Pressly ... Mrs. Quilligan (voice)
Charles Osgood ... Narrator (voice)
Josh Flitter ... Rudy (voice)
Niecy Nash ... Miss Yelp (voice)
Jesse McCartney ... JoJo (voice)
Shelby Adamowsky ... Hedy / Hooly / Additional Voices (voice)
Additional Details Also Known As: Dr. Seuss' Horton Hears a Who (USA) (working title) Dr. Seuss' Horton Hears a Who! (USA) (complete title) Horton (Philippines: English title) Horton Hears a Who! (Singapore: English title) more Parents Guide: View content advisory for parents Runtime: 88 min Country: USA Language: English Subtitles: Slo Color: Color Aspect Ratio: 1.85 : 1 more Sound Mix: Dolby Digital | DTS Certification: Norway:7 | Ireland:G | Sweden:Btl | Finland:K-3 | UK:U | Australia:G | Singapore:G | South Korea:All | Germany:o.Al. | Malaysia:U | Switzerland:0 (canton of Geneva) | Switzerland:0 (canton of Vaud) | Argentina:Atp | Denmark:A | Netherlands:AL | Canada:G (all jurisdictions) | Hong Kong:I | South Africa:PG | Philippines:G (MTRCB) | USA:G (certificate #44194) | Taiwan:GP | New Zealand:G MOVIEmeter: ? V 13% since last week why? Company: Blue Sky Studios more Fun Stuff Trivia: Green eggs (from “Green Eggs and Hamâ€) are briefly seen during The Mayor and his 97 kids' breakfast. more Goofs: Continuity: At breakfast, when it's Jojo’s turn with his dad, 12 seconds start on the clock, but when the mayor starts showing Jojo all the perks about being mayor, the clock goes back to 12 seconds left when it should be at 5 seconds left. more Quotes: Horton: [over intercom] Is everything okay down there? The Mayor of Who-ville: [in silent shock] You're the one holding the speck... you tell me. more Movie Connections: Featured in "Siskel & Ebert & the Movies: (2008-03-15)" (2008) more Soundtrack: Can't Fight This Feeling more