Benedict Cumberbatch

The Grinch (voice)

Rashida Jones

Donna 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)