Benedict Cumberbatch character Grinch (voice)
Rashida Jones character Donna Lou Who (voice)
Kenan Thompson character Bricklebaum (voice)
Cameron Seely character Cindy Lou Who (voice)
Angela Lansbury character Mayor McGerkle (voice)
Pharrell Williams character Narrator (voice)
Ramone Hamilton character Axl (voice)
Sam Lavagnino character Ozzy (voice)
Scarlett Estevez character Izzy (voice)
Michael Beattie character Store Clerk (voice)
Scott Mosier character Additional Voices (voice)
Lori Alan character Additional Voices (voice)
Carter Hastings character Additional Voices (voice)
Carlos Alazraqui character Additional Voices (voice)
John Kassir character Additional Voices (voice)
Cathy Cavadini character Additional Voices (voice)
Danny Mann character Additional Voices (voice)
Meilee Condron character Additional Voices (Voice)
Frank Welker character Max / Fred (voice)
Tristan O'Hare character Groopert (voice)
Doug Burch character Additional Voices (voice)
Tucker Chandler character Additional Voices (voice)
Townsend Coleman character Additional Voices (voice)
Abby Craden character Additional Voices (voice)
Brian T. Delaney character Additional Voices (voice)
John DeMita character Additional Voices (voice)
Bill Farmer character Additional Voices (voice)
Aaron Fors character Additional Voices (voice)
Willow Geer character Additional Voices (voice)
Jess Harnell character Additional Voices (voice)
Evan Kishiyama character Additional Voices (voice)
Barbara Harris character Additional Voices (voice)
Jeremy Maxwell character Additional Voices (voice)
Laraine Newman character Additional Voices (voice)
Dashiell Priestley character Additional Voices (voice)
Alex Puccinelli character Additional Voices (voice)
Emma Elizabeth Shannon character Additional Voices (voice)
Joel Swetow character Additional Voices (voice)
Mindy Sterling character Additional Voices (voice)
Tara Strong character Additional Voices (voice)
Regina Taufen character Additional Voices (voice)
Jim Ward character Additional Voices (voice)