Benedict CumberbatchThe Grinch (voice) Rashida JonesDonna Who (voice) Kenan ThompsonBricklebaum (voice) Cameron SeelyCindy-Lou Who (voice) Angela LansburyMayor McGerkle (voice) Pharrell WilliamsNarrator (voice) Ramone HamiltonAxl (voice) Sam LavagninoOzzy (voice) Scarlett EstevezIzzy (voice) Michael BeattieStore Clerk (voice) Scott MosierAdditional Voices (voice) / Director Lori AlanAdditional Voices (voice) Carter HastingsAdditional Voices (voice) Carlos AlazraquiAdditional Voices (voice) John KassirAdditional Voices (voice) Cathy CavadiniAdditional Voices (voice) Danny MannAdditional Voices (voice) Meilee CondronAdditional Voices (Voice) Tristan O'HareGroopert (voice) Doug BurchAdditional Voices (voice) Tucker ChandlerAdditional Voices (voice) Townsend ColemanAdditional Voices (voice) Abby CradenAdditional Voices (voice) Brian T. DelaneyAdditional Voices (voice) John DeMitaAdditional Voices (voice) Bill FarmerAdditional Voices (voice) Aaron ForsAdditional Voices (voice) Willow GeerAdditional Voices (voice) Jess HarnellAdditional Voices (voice) Evan KishiyamaAdditional Voices (voice) Barbara HarrisAdditional Voices (voice) Jeremy MaxwellAdditional Voices (voice) Laraine NewmanAdditional Voices (voice) Dashiell PriestleyAdditional Voices (voice) Alex PuccinelliAdditional Voices (voice) Emma Elizabeth ShannonAdditional Voices (voice) Joel SwetowAdditional Voices (voice) Mindy SterlingAdditional Voices (voice) Tara StrongAdditional Voices (voice) Regina TaufenAdditional Voices (voice) Jim WardAdditional Voices (voice) Kevin HartSnowball (voice) (uncredited) Scott MosierAdditional Voices (voice) / Director Michael LeSieurScreenplay Chris RenaudExecutive Producer Audrey GeiselExecutive Producer Robert TaylorAssociate Producer Latifa OuaouExecutive Producer Colin StimpsonArt Direction Danny ElfmanOriginal Music Composer David AcordSound Designer Jonathan GreberDialogue Editor Christopher FlickFoley Supervisor Geoff VaughanFoley Artist Dennis LeonardSupervising Sound Editor Bonnie WildSound Effects Editor Pascal GarneauSound Effects Editor Juan PeraltaSound Re-Recording Mixer Gary RizzoSound Re-Recording Mixer Cheryl NardiAdr Supervisor Zach MartinAssistant Sound Editor Delphine Le RochProduction Supervisor Dave RosenbaumProduction Supervisor 
