The Grinch hatches a scheme to ruin Christmas when the residents of Whoville plan their annual holiday celebration. But a certain little who might change things.

Benedict Cumberbatchas The Grinch (voice)
Rashida Jonesas Donna Who (voice)
Kenan Thompsonas Bricklebaum (voice)
Cameron Seelyas Cindy-Lou Who (voice)
Angela Lansburyas Mayor McGerkle (voice)
Pharrell Williamsas Narrator (voice)
Ramone Hamiltonas Axl (voice)
Sam Lavagninoas Ozzy (voice)
Scarlett Estevezas Izzy (voice)
Michael Beattieas Store Clerk (voice)