Benedict Cumberbatch Grinch (voice)
Tara Strong Additional Voices (voice)
Rashida Jones Donna Lou Who (voice)
Angela Lansbury Mayor McGerkle (voice)
Scarlett Estevez Izzy (voice)
Carlos Alazraqui Additional Voices (voice)
Kenan Thompson Bricklebaum (voice)
Mindy Sterling Additional Voices (voice)
Laraine Newman Additional Voices (voice)
John Kassir Additional Voices (voice)
Jess Harnell Additional Voices (voice)
Danny Elfman Original Music Composer
Lori Alan Additional Voices (voice)
Cathy Cavadini Additional Voices (voice)
Scott Mosier Additional Voices (voice), Director
Danny Mann Additional Voices (voice)
Tyler, The Creator Songs
Pharrell Williams Narrator (voice)
Bill Farmer Additional Voices (voice)
Jim Ward Additional Voices (voice)
Chris Meledandri Producer
Gary Rizzo Sound Re-Recording Mixer
Barbara Harris Additional Voices (voice)
Townsend Coleman Additional Voices (voice)
Joel Swetow Additional Voices (voice)
Sam Lavagnino Ozzy (voice)
Chris Renaud Executive Producer
Brian T. Delaney Additional Voices (voice)
Willow Geer Additional Voices (voice)
Jeremy Maxwell Additional Voices (voice)
Dennis Leonard Supervising Sound Editor
Benjamin Faure Animation
John DeMita Additional Voices (voice)
David Acord Sound Designer, Supervising Sound Editor
Cameron Seely Cindy Lou Who (voice)
Tucker Chandler Additional Voices (voice)
Dr. Seuss Book
Juan Peralta Sound Re-Recording Mixer
Bonnie Wild Sound Effects Editor
Tommy Swerdlow Screenplay
Dave Rosenbaum Production Supervisor
Carter Hastings Additional Voices (voice)
Christopher Flick Foley Supervisor
Ramone Hamilton Axl (voice)
John Roesch Foley Artist
Aaron Fors Additional Voices (voice)
Yarrow Cheney Director
Blake Collins Foley Mixer
Evan Kishiyama Additional Voices (voice)
Michael Beattie Store Clerk (voice)
Jim Likowski Foley Editor
Latifa Ouaou Executive Producer
Regina Taufen Additional Voices (voice)
Doug Burch Additional Voices (voice)
Cinzia Angelini Storyboard Artist
Jeannine Berger Post Production Supervisor
Alex Puccinelli Additional Voices (voice)
Michael LeSieur Screenplay
Meilee Condron Additional Voices (Voice)
Janet Healy Producer
Abby Craden Additional Voices (voice)
Colin Stimpson Art Direction
Chris Cartagena Editor
Cheryl Nardi ADR Supervisor
Jonathan Greber Dialogue Editor, ADR Editor
Robert Taylor Associate Producer
Pascal Garneau Sound Effects Editor
Zach Martin Assistant Sound Editor
Tristan O'Hare Groopert (voice)
Miguel Jiron Storyboard Artist
Geoff Vaughan Foley Artist
Dashiell Priestley Additional Voices (voice)