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)

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)