Cast & Crew
-
Jim CarreyHorton - Steve CarellMayor of Who-ville
- Carol BurnettKangaroo
- Amy PoehlerSalley O'Malley
- Jesse McCartneyJo Jo
- Isla FisherDr. Larue
- Dan FoglerYummo
- Will ArnettVlad
- Seth RogenMorton
- Jonah HillTommy
- Jaime PresslyMrs. Quilligan
- Laura OrtizJessica
- Josh FlitterRudy
- Joey KingKatie
- Karen DisherWho Kid
- Jimmy HaywardDirector
- Steve MartinoDirector
- Audrey GeiselProducer
- Chris WedgeProducer
- Chris MeledandriProducer
- Bob GordonProducer
- Cinco PaulWriter
- Ken DaurioWriter