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