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