Kevin Hart Snowball (voice) (uncredited)
Benedict Cumberbatch The Grinch (voice)
Rashida Jones Donna Who (voice)
Tara Strong Additional Voices (voice)
Angela Lansbury Mayor McGerkle (voice)
Scarlett Estevez Izzy (voice)
Carlos Alazraqui Additional Voices (voice)
Kenan Thompson Bricklebaum (voice)
Lori Alan Additional Voices (voice)
Danny Elfman Original Music Composer
Tommy Swerdlow Screenplay
Bill Farmer Additional Voices (voice)
Mindy Sterling Additional Voices (voice)
Chris Renaud Executive Producer
Pharrell Williams Narrator (voice)
Townsend Coleman Additional Voices (voice)
John Kassir Additional Voices (voice)
Scott Mosier Additional Voices (voice), Director
Jess Harnell Additional Voices (voice)
Gary Rizzo Sound Re-Recording Mixer
Sam Lavagnino Ozzy (voice)
Chris Meledandri Producer
Tyler, The Creator Songs
Jim Ward Additional Voices (voice)
Danny Mann Additional Voices (voice)
Laraine Newman Additional Voices (voice)
Yarrow Cheney Director
Janet Healy Producer
Cathy Cavadini Additional Voices (voice)
David Acord Sound Designer, Supervising Sound Editor
David Feiss Additional Storyboarding
Joel Swetow Additional Voices (voice)
Dr. Seuss Book
Ramone Hamilton Axl (voice)
Cameron Seely Cindy-Lou Who (voice)
John DeMita Additional Voices (voice)
Carter Hastings Additional Voices (voice)
Brian T. Delaney Additional Voices (voice)
Barbara Harris Additional Voices (voice)
Dave Rosenbaum Production Supervisor
Michael Beattie Store Clerk (voice)
Michael LeSieur Screenplay
John Roesch Foley Artist
Juan Peralta Sound Re-Recording Mixer
Willow Geer Additional Voices (voice)
Christopher Flick Foley Supervisor
Aaron Fors Additional Voices (voice)
Tucker Chandler Additional Voices (voice)
Dennis Leonard Supervising Sound Editor
Robert Taylor Associate Producer
Chris Cartagena Editor
Bonnie Wild Sound Effects Editor
Blake Collins Foley Mixer
Doug Burch Additional Voices (voice)
Cinzia Angelini Storyboard Artist
Abby Craden Additional Voices (voice)
Meilee Condron Additional Voices (Voice)
Evan Kishiyama Additional Voices (voice)
Cheryl Nardi ADR Supervisor
Alex Puccinelli Additional Voices (voice)
Latifa Ouaou Executive Producer
Pascal Garneau Sound Effects Editor
Benjamin Faure Animation
Jeremy Maxwell Additional Voices (voice)
Geoff Vaughan Foley Artist
Delphine Le Roch Production Supervisor
Colin Stimpson Art Direction
Jeannine Berger Post Production Supervisor
Miguel Jiron Storyboard Artist
Regina Taufen Additional Voices (voice)
Jim Likowski Foley Editor
Audrey Geisel Executive Producer