Benedict Cumberbatch The Grinch (voice)
Kevin Hart Snowball (voice) (uncredited)
Angela Lansbury Mayor McGerkle (voice)
Rashida Jones Donna Who (voice)
Tara Strong Additional Voices (voice)
Scarlett Estevez Izzy (voice)
Mindy Sterling Additional Voices (voice)
Danny Elfman Original Music Composer
Carlos Alazraqui Additional Voices (voice)
Dr. Seuss Book
Lori Alan Additional Voices (voice)
Kenan Thompson Bricklebaum (voice)
Pharrell Williams Narrator (voice)
Tyler, The Creator Songs
Bill Farmer Additional Voices (voice)
Laraine Newman Additional Voices (voice)
Scott Mosier Additional Voices (voice), Director
John Kassir Additional Voices (voice)
Cathy Cavadini Additional Voices (voice)
Sam Lavagnino Ozzy (voice)
Christopher Flick Foley Supervisor
Ramone Hamilton Axl (voice)
Barbara Harris Additional Voices (voice)
Paul McEvoy Additional Storyboarding
Chris Renaud Executive Producer
Joel Swetow Additional Voices (voice)
Jess Harnell Additional Voices (voice)
Carter Hastings Additional Voices (voice)
Gary Rizzo Sound Re-Recording Mixer
Danny Mann Additional Voices (voice)
Jim Ward Additional Voices (voice)
Chris Cartagena Editor
Tucker Chandler Additional Voices (voice)
Brian T. Delaney Additional Voices (voice)
Blake Collins Foley Mixer
Tommy Swerdlow Screenplay
Dennis Leonard Supervising Sound Editor
John Roesch Foley Artist
Chris Meledandri Producer
Jonathan del Val Animation Director
David Feiss Additional Storyboarding
Mark O'Hare Head of Story
Latifa Ouaou Executive Producer
Evan Kishiyama Additional Voices (voice)
John DeMita Additional Voices (voice)
Cameron Seely Cindy-Lou Who (voice)
Juan Peralta Sound Re-Recording Mixer
Janet Healy Producer
Robert Taylor Associate Producer
Pascal Garneau Sound Effects Editor
Guy Bar'ely Story Artist
Eric Guillon Character Designer
Benjamin Faure Animation
Willow Geer Additional Voices (voice)
Jeremy Maxwell Additional Voices (voice)
Abby Craden Additional Voices (voice)
Bonnie Wild Sound Effects Editor
Zach Martin Assistant Sound Editor
Audrey Geisel Executive Producer
Michael Beattie Store Clerk (voice)
Doug Burch Additional Voices (voice)
Townsend Coleman Additional Voices (voice)
David Acord Sound Designer, Supervising Sound Editor
Habib Louati Story Artist
Aaron Fors Additional Voices (voice)
Cinzia Angelini Additional Storyboarding
John Carnochan Editor
Mark Koetsier Story Artist
Michael LeSieur Screenplay
Alex Puccinelli Additional Voices (voice)
Yarrow Cheney Director, Character Designer
Pierre-François Duhamel Supervising Animator