Benedict Cumberbatch
Grinch (voice)

Rashida Jones
Donna Lou Who (voice)

Kenan Thompson
Bricklebaum (voice)

Cameron Seely
Cindy Lou Who (voice)

Angela Lansbury
Mayor McGerkle (voice)

Pharrell Williams
Narrator (voice)

Ramone Hamilton
Axl (voice)

Sam Lavagnino
Ozzy (voice)

Scarlett Estevez
Izzy (voice)

Michael Beattie
Store Clerk (voice)

Scott Mosier
Additional Voices (voice)

Lori Alan
Additional Voices (voice)

Carter Hastings
Additional Voices (voice)

Carlos Alazraqui
Additional Voices (voice)

John Kassir
Additional Voices (voice)

Cathy Cavadini
Additional Voices (voice)

Danny Mann
Additional Voices (voice)

Meilee Condron
Additional Voices (Voice)

Tristan O'Hare
Groopert (voice)

Doug Burch
Additional Voices (voice)

Tucker Chandler
Additional Voices (voice)

Townsend Coleman
Additional Voices (voice)

Abby Craden
Additional Voices (voice)

Brian T. Delaney
Additional Voices (voice)

John DeMita
Additional Voices (voice)

Bill Farmer
Additional Voices (voice)

Aaron Fors
Additional Voices (voice)

Willow Geer
Additional Voices (voice)

Jess Harnell
Additional Voices (voice)

Evan Kishiyama
Additional Voices (voice)

Barbara Harris
Additional Voices (voice)

Jeremy Maxwell
Additional Voices (voice)

Laraine Newman
Additional Voices (voice)

Alex Puccinelli
Additional Voices (voice)

Joel Swetow
Additional Voices (voice)

Mindy Sterling
Additional Voices (voice)

Tara Strong
Additional Voices (voice)

Regina Taufen
Additional Voices (voice)

Jim Ward
Additional Voices (voice)