Dirigida por | |||
| Jimmy Hayward | |||
| Steve Martino | |||
Créditos del guión(en orden alfabético) | ||
| Ken Daurio | guión | |
| Cinco Paul | guión | |
| Dr. Seuss | libro | |
| Dr. Seuss | argumento | |
| Jeff Siergey | additional story | |
| Jim Carrey | ... | Horton (voz) | |
| Steve Carell | ... | The Mayor of Whoville (voz) | |
| Carol Burnett | ... | Kangaroo (voz) | |
| Will Arnett | ... | Vlad (voz) | |
| Seth Rogen | ... | Morton (voz) | |
| Dan Fogler | ... | Councilman / Yummo Wickersham (voz) | |
| Isla Fisher | ... | Dr. Mary Lou Larue (voz) | |
| Jonah Hill | ... | Tommy (voz) | |
| Amy Poehler | ... | Sally O'Malley (voz) | |
| Jaime Pressly | ... | Mrs. Quilligan (voz) | |
| Charles Osgood | ... | Narrador (voz) | |
| Josh Flitter | ... | Rudy (voz) | |
| Niecy Nash | ... | Miss Yelp (voz) | |
| Jesse McCartney | ... | JoJo (voz) | |
| Shelby Adamowsky | ... | Hedy / Hooly / Voces Adicionales (voz) | |
| Jack Angel | ... | Old Time Who / Voces Adicionales (voz) | |
| Caitlin Rose Anderson | ... | Helen (voz) | |
| Emily Anderson | ... | Heather (voz) | |
| Jan Rabson | ... | Town Cryer / Voces Adicionales (voz) | |
| John Cygan | ... | Who / Voces Adicionales (voz) | |
| Jess Harnell | ... | Another Who / Voces Adicionales (voz) | |
| Debi Derryberry | ... | Who Mom / Voces Adicionales (voz) | |
| Samantha Droke | ... | Hildy / Holly (voz) | |
| Karen Disher | ... | Who Kid (voz) | |
| Marshall Efron | ... | Wickersham Guard #1 (voz) | |
| Bill Farmer | ... | Willie Bear / Voces Adicionales (voz) | |
| Jason Fricchione | ... | Joe (voz) | |
| Heather Goldenhersh | ... | Who Girl / Voces Adicionales (voz) | |
| Selena Gomez | ... | Helga (voz) | |
| Jimmy Hayward | ... | Obnoxious Who (voz) | |
| Joey King | ... | Katie (voz) | |
| Christina Martino | ... | Heidi / Haley (voz) | |
| Ellie Martino | ... | Hanna / Voces Adicionales (voz) | |
| Laraine Newman | ... | Glummox Mom / Voces Adicionales (voz) | |
| Tim Nordquist | ... | Wickersham Guard #2 (voz) | |
| Colleen O'Shaughnessey | ... | Angela / Voces Adicionales (voz) | |
| Laura Ortiz | ... | Jessica (voz) | |
| Joe Pasquale | ... | The Dentist (voz) | |
| Isabella Acres | ... | Voces Adicionales (voz) | |
| Mona Marshall | ... | Voces Adicionales (voz) | |
| Connor Anderson | ... | Voces Adicionales (voz) | |
| Mickie McGowan | ... | Voces Adicionales (voz) | |
| Bob Bergen | ... | Voces Adicionales (voz) | |
| Madison Pettis | ... | Voces Adicionales (voz) | |
| Madison Davenport | ... | Voces Adicionales (voz) | |
| Grace Rolek | ... | Voces Adicionales (voz) | |
| Jennessa Rose | ... | Voces Adicionales (voz) | |
| Teresa Ganzel | ... | Voces Adicionales (voz) | |
| Ariel Winter | ... | Voces Adicionales (voz) | |
| Danny Mann | ... | Voces Adicionales (voz) |
Producida por | |||
| Audrey Geisel | .... | productor ejecutivo | |
| Bob Gordon | .... | productor | |
| Christopher Meledandri | .... | productor ejecutivo | |
| Chris Wedge | .... | productor ejecutivo | |
Música original por | |||
| John Powell | |||
Montaje por | |||
| Tim Nordquist | |||
Dirección Artística por | |||
| Thomas Cardone | |||
Dirección de Producción | |||
| Jeannine Berger | .... | supervisor de post-producción | |
| Kane Lee | .... | asistente del director de producción | |
| Sean M. Murphy | .... | associate production manager (lighting/paint ) | |
| Anthony Nisi | .... | supervisor de producción | |
| Denise Rottina | .... | associate production manager: materials and fur | |
| Fred Weinberg | .... | asistente del director de producción | |
Departamento de Arte | |||
| Jeff Biancalana | .... | artista del guión gráfico | |
| Callan Brunker | .... | artista del guión gráfico | |
| Jony Chandra | .... | artista del guión gráfico | |
| Nash Dunnigan | .... | location designer | |
| Chris Gilligan | .... | additional storyboard artist | |
| Mike Knapp | .... | diseñador del foro | |
| Tony Maki | .... | artista del guión gráfico | |
| Frank Marino | .... | additional storyboards | |
| Moroni | .... | artista del guión gráfico | |
| Vicki Saulls | .... | escultor | |
| Jeff Siergey | .... | additional storyboards | |
| Alena Wooten | .... | escultor | |
Departamento de sonido | |||
| Kevin Bailey | .... | asistente editor de efectos de sonido | |
| Chris Barron | .... | digital transferer (como Christopher Barron) | |
| Jeremy Bowker | .... | editor "foley" (como Jeremy Paul Bowker) | |
| Derek Casari | .... | ingeniero adr | |
| Dustin Cawood | .... | assistant sound designer | |
| Brian Chumney | .... | asistente de editor adr | |
| Frank Clary | .... | grabador "foley" | |
| Kyrsten Mate Comoglio | .... | editor de efectos de sonido (como Krysten Mate) | |
| John Countryman | .... | digital transferer | |
| Colette Dahanne | .... | editor de efectos de sonido | |
| Coya Elliott | .... | assistant supervising sound editor | |
| Sean England | .... | mezclador "foley" | |
| Sue Fox | .... | editor supervisor de efectos de sonido (como Suzanne Fox) | |
| Andrea S. Gard | .... | editor "foley" (como Andrea Gard) | |
| Jonathan Greber | .... | digital transferer | |
| Ellen Heuer | .... | artista "foley" | |
| Pete Horner | .... | editor de efectos de sonido | |
| Leff Lefferts | .... | assistant sound designer (como Leffert Lefferts) | |
| Jessica Lemes da Silva | .... | grabador de efectos de sonido | |
| Dennis Leonard | .... | supervisor de edición de sonido | |
| Rhys Maitland-Jones | .... | sound mix technician | |
| Zach Martin | .... | sound mix technician | |
| Jonathan Null | .... | supervisor adr | |
| Gary Rizzo | .... | mezclador de re-grabación de sonido (como Gary A. Rizzo) | |
| Ronald G. Roumas | .... | recordist | |
| Steve Slanec | .... | editor adr | |
| Clint Smith | .... | grabador de sonido | |
| Mac Smith | .... | editor de efectos de sonido | |
| Carlos Sotolongo | .... | original dialogue mixer | |
| Randy Thom | .... | diseñador de sonido | |
| Randy Thom | .... | mezclador de re-grabación de sonido | |
| Randy Thom | .... | supervisor de edición de sonido | |
| Dennie Thorpe | .... | artista "foley" | |
| Colette Dahanne | .... | additional re-recording mixer (sin acreditar) | |
| Mark Sheffield | .... | sound mix technician (sin acreditar) | |
Efectos Visuales por | |||
| Inna Agujen | .... | assembly technical director | |
| Lynn Bacino | .... | senior technical director: lighting | |
| Jodi Lynn Bade | .... | additional lighting technical director | |
| Jinyi Baird | .... | production coordinator: effects | |
| Mark Bajuk | .... | lead technical director: fur | |
| Victor Banks | .... | additional technical director: fur | |
| David Barksdale | .... | effects technical director | |
| David Barksdale | .... | fur technical director | |
| Andrew Beddini | .... | lighting development supervisor | |
| Heather Brown | .... | lighting technical assistant | |
| Simon Brown | .... | senior technical director: additional effects | |
| Marco Burbano | .... | character technical director | |
| Ian M. Burkard | .... | modelador | |
| Ian D. Butterfield | .... | senior materials technical director | |
| Joan Cabot | .... | director técnico de iluminación | |
| Danielle Cambridge | .... | senior technical support lead | |
| Jon Campbell | .... | effects technical director | |
| Jon Campbell | .... | fur technical director | |
| Jacob Carlson | .... | production assistant: assembly/production engineering/lighting lock | |
| Rafael Castelblanco | .... | director técnico de iluminación | |
| Robert V. Cavaleri | .... | supervisor CG | |
| Dan Cayer | .... | lead compositor: Blue Sky Studios | |
| Dan Cayer | .... | senior lighting technical director: Blue Sky Studios | |
| Jane Chatot | .... | character TA | |
| Sheng-Fang Chen | .... | director técnico de iluminación | |
| Eldar Cholich | .... | compositor digital | |
| Eldar Cholich | .... | senior technical director: lighting | |
| Sheldon Chow | .... | lead technical director: fur | |
| Rhett Collier | .... | senior effects technical director | |
| Brendan Condit | .... | character technical director | |
| Shaun Cusick | .... | senior modeler | |
| Casey Dame | .... | character technical director | |
| Jason Davies | .... | character technical director | |
| Jonathan Davis | .... | director técnico de iluminación | |
| Diana Diriwaechter | .... | materials technical director | |
| Mark Edwards | .... | character technical director | |
| David Esneault | .... | lighting supervisor | |
| Jud Estes | .... | Shake compositor | |
| Jud Estes | .... | digital paint | |
| Ian Etra | .... | character technical director | |
| Mona Falvey | .... | assistant to the producers | |
| Harold Fraga | .... | director técnico de iluminación | |
| Anthony Fung | .... | artista de efectos visuales | |
| Tamara Garabedian | .... | fur technical director | |
| Kirk Garfield | .... | effects supervisor | |
| Christine Gatchalian | .... | additional technical director: fur | |
| Christine Gatchalian | .... | director técnico de iluminación | |
| Jenifer Lee Gilchrist | .... | additional lighting technical director | |
| Eric Grimenstein | .... | fur technical director | |
| James Gu | .... | character technical director | |
| Cleveland Hibbert | .... | asistente técnico | |
| Brian A. Hill | .... | materials technical director | |
| Todd Edward James Hill | .... | character technical director | |
| Brien Hindman | .... | senior modeler | |
| Isaac Holze | .... | assembly technical assistant | |
| Nickie Huai | .... | compositor digital | |
| Nickie Huai | .... | lighting techical director | |
| Youngwoong Jang | .... | director técnico de iluminación | |
| Jina Kang | .... | director técnico de iluminación | |
| Jina Kang | .... | director técnico | |
| Ben Kilgore | .... | character technical director | |
| Michael Kingsley | .... | technical lead | |
| Jamie Kirschenbaum | .... | senior effects technical director | |
| In Soo Lee | .... | additional technical director: fur | |
| Alexander Levenson | .... | senior modeler | |
| Yu-Li Liao | .... | character technical director | |
| Robin Luera | .... | animación (como WildOrca) | |
| Rosalinda Malibiran | .... | lighting lead | |
| Erik Malvarez | .... | senior character technical director | |
| Melanie Martini | .... | encargado de vestuario en el foro | |
| Eric Maurer | .... | fur supervisor | |
| Brett McConnell | .... | lighting techical director | |
| Adam McMahon | .... | modelador | |
| David V. Mei | .... | modeling supervisor (como David Mei) | |
| Salvatore Melluso | .... | environmental lead modeler | |
| Karyn Monschein | .... | layout | |
| Christopher Moore | .... | materials technical director | |
| Cosku Ozdemir | .... | materials technical director: Blue Sky Studios | |
| Sean Palmer | .... | development: field of clovers | |
| Sean Palmer | .... | effects technical director | |
| James Parente | .... | assembly technical director | |
| James Parente | .... | effects technical director | |
| Elvira Pinkhas | .... | effects technical director | |
| Stewart Pomeroy | .... | artista digital | |
| Gabriel Portnof | .... | director técnico de iluminación | |
| Arun Ram-Mohan | .... | director técnico de iluminación | |
| Tridip Ray | .... | assembly technical assistant | |
| Tridip Ray | .... | lighting technical assistant | |
| Jacob Richards | .... | director técnico de iluminación | |
| Gregory Rizzi | .... | animación | |
| Matt Roach | .... | effects technical director | |
| Edward Robbins | .... | modelador | |
| Gates Roberg-Clark | .... | lighting technical assistant | |
| Aaron M. Ross | .... | feather development | |
| Aaron M. Ross | .... | fur technical director | |
| Aaron M. Ross | .... | senior technical director: lighting | |
| Ari Rubenstein | .... | digital compositor: Blue Sky Studios | |
| Jessica Sances | .... | animador de personaje | |
| Jessica Sances | .... | character lead | |
| Monika Sawyer | .... | fur technical director | |
| Monika Sawyer | .... | director técnico de iluminación | |
| Andrew Schneider | .... | effects technical director | |
| Jon Schroth | .... | director técnico de iluminación | |
| Scott Sharp | .... | senior character technical director | |
| Daniel Ken Shimmyo | .... | materials technical director | |
| John Siczewicz | .... | lead digital paint artist | |
| Keith Stichweh | .... | director técnico | |
| Dave Strick | .... | modelador | |
| Jeeyun Sung | .... | lighting lead | |
| Prapanch Swamy | .... | additional effects | |
| Prapanch Swamy | .... | fur technical director | |
| Dann Tarmy | .... | compositor digital | |
| Dann Tarmy | .... | director técnico de iluminación | |
| Gary Telfer | .... | final layout artist | |
| Gary Telfer | .... | previs modeler | |
| Radhika Thirunarayanan | .... | materials technical director | |
| John David Thornton | .... | animador Sr. | |
| Paul-Jozef Torrevillas | .... | lighting technical assistant | |
| Ellen Trinh | .... | director técnico de iluminación | |
| Haji Uesato | .... | sequence lighting lead | |
| Stephen Unterfranz | .... | supervising character technical director | |
| Bryan Useo | .... | lead assembly technical director | |
| Antelmo Villarreal | .... | assembly TA | |
| Aaron Walsman | .... | character technical director | |
| Danny Williams | .... | character modeling lead | |
| James Willingham III | .... | previs artist | |
| Brent Wong | .... | director técnico de iluminación | |
| Brent Wong | .... | modelador | |
| Jerril Yoo | .... | senior character technical director | |
| Terry Ziegelman | .... | fur technical director | |
| Terry Ziegelman | .... | director técnico de iluminación | |
| Thomas Mathai | .... | data manager (sin acreditar) | |
| Luis Pages | .... | character technical director (sin acreditar) | |
Cámara y Departamento Eléctrico | |||
| James Gettinger | .... | lighting lead | |
| Gabriel Schlumberger | .... | camera designer | |
Departamento de Animación | |||
| Dan Barker | .... | animación | |
| Jeff Biancalana | .... | animación | |
| Aja Bogdanoff | .... | animación | |
| James Bresnahan | .... | supervisor de animación | |
| Nick Bruno | .... | animation character lead: The Whos | |
| Robert Cardone | .... | supervisor de diseño | |
| Heather Carpini | .... | animación | |
| Scott Carroll | .... | animación | |
| Jerod Chirico | .... | animation character lead: The Whos | |
| Jerod Chirico | .... | lead character animator | |
| Galen T. Chu | .... | animation character lead: mayor (como Galen Tan Chu) | |
| Galen T. Chu | .... | supervisor de animación (como Galen Tan Chu) | |
| Bertrand Chung | .... | additional animator | |
| Andrew Coats | .... | asistente de animador | |
| Brendan Condit | .... | additional animator | |
| Ricardo Curtis | .... | head of story | |
| Casey Dame | .... | additional animator | |
| Jason Davies | .... | technical director: character technical | |
| Rylan Davies | .... | animación | |
| Ryan Denniston | .... | animación | |
| Pete Devlin | .... | animación | |
| Aaron Dimunno | .... | diseñador | |
| Karen Disher | .... | story artist | |
| Paul Downs | .... | animación | |
| Nathan Engelhardt | .... | animación | |
| Ian Etra | .... | animación | |
| Scott Farrell | .... | animación | |
| Eric Favela | .... | story artist | |
| Gordana Fersini | .... | animación | |
| Edmund Fong | .... | story artist | |
| Jackie Fortin | .... | animación | |
| William H. Frake III | .... | artista del guión gráfico | |
| Jeff Gabor | .... | animation character lead: councilmen of whoville | |
| Michael Galbraith | .... | animación | |
| Tamara Garabedian | .... | additional animator | |
| Nick Gibbons | .... | asistente de animador | |
| Curran W. Giddens | .... | animación | |
| Adam Green | .... | animación | |
| Mark Curnell Harris | .... | animation character lead: The Whos | |
| Aaron J. Hartline | .... | supervisor de animación (como Aaron Hartline) | |
| Ryan Hobbiebrunken | .... | animación | |
| Bill Hodman | .... | workbook | |
| Robert Huth | .... | animation technical assistant | |
| Robert Huth | .... | crowd animator | |
| Leif Jeffers | .... | animación | |
| Leif Jeffers | .... | character lead: Morton the Mouse | |
| Anthea Kerou | .... | animación | |
| Jeff Kim | .... | animación | |
| Aaron Koressel | .... | animación | |
| Ken Lee | .... | workbook layout artist | |
| Moonsung Lee | .... | animación | |
| Andrew H. Leung | .... | lead animatic artist | |
| Alex Li | .... | workbook layout artist | |
| Lluis Llobera | .... | animación | |
| Eric Luhta | .... | animación | |
| Venece Lyman | .... | animation technical assistant | |
| Venece Lyman | .... | crowd animator | |
| Wesley Mandell | .... | animación | |
| Jason Martinsen | .... | animación | |
| Rich McKain | .... | animación | |
| Stephen Melagrano | .... | animación | |
| Kyle Mohr | .... | additional animator | |
| Lauren Montuori | .... | production assistant: animation | |
| Jacob Palmer | .... | additional animator | |
| Jacob Patrick | .... | animación | |
| David S. Peng | .... | animation character lead: Horton | |
| Max Perelman | .... | animation technical assistant | |
| Max Perelman | .... | animación | |
| Rebecca Perez | .... | animación | |
| Gareth Porter | .... | lead technical director: assembly | |
| Amila Puhala | .... | animación | |
| Patrik Puhala | .... | animación | |
| Chris Renaud | .... | story artist | |
| Mika Ripatti | .... | animation character lead: Wickershams | |
| Raymond Ross | .... | animación | |
| Derek Rozmes | .... | animación | |
| Jessica Sances | .... | animador de personaje | |
| Jessica Sances | .... | character lead: Sally & Miss Yelp | |
| Tom Saville | .... | animador de personaje | |
| Matthew D. Simmons | .... | animation technical lead | |
| David Sloss | .... | animación | |
| Miles Southan | .... | additional animator | |
| Melvin Tan | .... | animación | |
| Mike Thurmeier | .... | senior supervising animator (como Michael Thurmeier) | |
| Nikki Tomaino | .... | technical director: materials | |
| David Torres | .... | lead animator: "Horton" | |
| Jinanavin Veerapatra | .... | animación | |
| Michael C. Walling | .... | animador de personaje | |
| Steve Warbrick | .... | animatic artist | |
| Royce Wesley | .... | animación | |
| Rafael Zentil | .... | story artist | |
| Darlie Brewster | .... | 2d animator: anime sequence (sin acreditar) | |
Departamento de reparto | |||
| Micah Dahlberg | .... | ayudante de casting | |
Departamento de Edición | |||
| Kent Beyda | .... | editorial consultant | |
| Gary Burritt | .... | cortador de negativos | |
| Christopher Campbell | .... | primer asistente de editor | |
| John Carnochan | .... | editor adicional | |
| Erin Crackel | .... | segundo asistente al editor | |
| Jason Fricchione | .... | editorial manager | |
| Eileen Godoy | .... | digital intermediate producer: EFilm | |
| Kathy Graves | .... | asistente de editor | |
| Matt Hull | .... | digital intermediate production assistant | |
| Natasha Leonnet | .... | digital film colorist | |
| Marc Lulkin | .... | digital color assist | |
| James Palumbo | .... | development editor: Blue Sky Studios | |
| Jim Passon | .... | ajustador de color | |
| Randy Trager | .... | editor adjunto | |
| Chad N. Walker | .... | aprendiz de editor (como Chad Walker) | |
| Justin Worthington | .... | digital intermediate production assistant | |
Departamento de Música | |||
| Pete Anthony | .... | conductor | |
| Pete Anthony | .... | orquestador | |
| Rick Baptist | .... | músico: trumpet | |
| Thomas A. Carlson | .... | editor supervisor musical (como Tom Carlson) | |
| David Channing | .... | scoring editor | |
| Jane Antonia Cornish | .... | orquestador (como Jane Cornish) | |
| Brad Dechter | .... | orquestador | |
| Bruce Dukov | .... | concert master | |
| Germaine Franco | .... | score production coordinator | |
| Rick Giovinazzo | .... | orquestador | |
| Mark Graham | .... | preparación musical | |
| Randy Kerber | .... | orquestador | |
| Harry Kim | .... | músico: trumpet | |
| Andrew Kinney | .... | orquestador | |
| Kevin Kliesch | .... | orquestador | |
| Tim Lauber | .... | grabador de banda sonora | |
| Edie Lehmann | .... | conductor: choir (como Edie Lehmann Boddicker) | |
| Edie Lehmann | .... | vocal contractor (como Edie Lehmann Boddicker) | |
| Dan Lerner | .... | additional score recordist | |
| James McKee Smith | .... | compositor: música adicional | |
| James McKee Smith | .... | programador musical | |
| Dave Metzger | .... | orquestador | |
| Michael John Mollo | .... | asistente musical | |
| Shawn Murphy | .... | grabador de banda sonora | |
| Shawn Murphy | .... | mezclador de banda sonora | |
| Conrad Pope | .... | orquestador | |
| Andrew Shulman | .... | músico | |
| Denis St. Amand | .... | score engineer | |
| Erik Swanson | .... | scoring digital recordist | |
| John Ashton Thomas | .... | compositor: música adicional | |
| John Ashton Thomas | .... | programador musical | |
| John Ashton Thomas | .... | orquestador | |
| Gina Zimmitti | .... | contratista musical | |
Otros miembros del equipo | |||
| Tansal Arnas | .... | additional production supporter | |
| Jinyi Baird | .... | production coordinator: effects | |
| Jitendra Borse | .... | research associate | |
| Jennifer Brola | .... | research associate | |
| Adam Burr | .... | senior research associate | |
| Jacob Carlson | .... | character group production assistant | |
| Kim Chase | .... | operations: Blue Sky Studios | |
| Victoria Dedvukaj | .... | asistente: Christopher Wedge | |
| Christian De Sica | .... | voice dubbing: De Sica, Christian' | |
| Lisa Durr | .... | asistente de producción | |
| Brian Grimenstein | .... | scheduling coordinator | |
| Brett Hoffman | .... | supervisor guionista | |
| Miranda Jackson | .... | layout production assistant | |
| Amanda Deering Jones | .... | additional production support | |
| Christopher Kappler | .... | hr coordinator | |
| Kristin Labriola | .... | additional production support | |
| Dave LaMattina | .... | assistant to directors | |
| Doug Letterman | .... | research associate | |
| Melanie Martini | .... | director técnico | |
| Matthew Morgenthaler | .... | pasante de producción | |
| Paul Ohrt | .... | ejecutivo de producción | |
| Kevin Porterfield | .... | production systems manager | |
| Mike Reiss | .... | consultor de argumento | |
| Chris Siemasko | .... | additional production support | |
| Josh Smeltzer | .... | technical director: materials and fur | |
| Tim Speltz | .... | lead production engineer | |
| Daren Tillinger | .... | asistente de producción | |
| Bryan Useo | .... | lead technical director | |
| Maurice Van Swaaij | .... | manager software | |
| Jon Vitti | .... | consultor de argumento | |
| Weera Tom Wichitsripornkul | .... | director técnico | |
| Jayme Wilkinson | .... | senior technical director | |
| Créditos de la compañía | Especificaciones Técnicas | Detalles principales |