Trailer
 | Kevin James as Otis (voice) |
 | Courteney Cox as Daisy (voice) |
 | Sam Elliott as Ben (voice) |
 | Danny Glover as Miles (voice) |
 | Wanda Sykes as Bessy (voice) |
 | Andie MacDowell as Etta (voice) |
 | David Koechner as Dag (voice) |
 | Jeffrey Garcia as Pip (voice) |
 | Cam Clarke as Freddy (voice) |
 | Rob Paulsen as Peck / Gopher / Pizza Twin #1 / Wild Mike (voice) |
 | Tino Insana as Pig (voice) |
 | Dom Irrera as Duke (voice) |
 | S. Scott Bullock as Eddy (voice) |
 | John DiMaggio as Bud / Officer O'Hanlon (voice) |
 | Maurice LaMarche as Igg (voice) |
| Madeline Lovejoy as Maddy (voice) |
 | Earthquake as Root (voice) |
 | Steve Oedekerk as Snotty Boy / Mr. Beady / Snotty Boy's Father / Pizza Twin #2 (voice) |
 | Maria Bamford as Mrs. Beady (voice) |
 | Fred Tatasciore as Farmer (voice) |
| Peter Stenstrom as Skunk (voice) |
 | Jill Talley as Snotty Boy's Mother (voice) |
 | Laraine Newman as Snotty Boy's Friend (voice) |
 | Katie Leigh as Snotty Boy's Friend / Additional Barnyard Voices (voice) |
| Anna Pistor as Chick (voice) |
| Thomas Pistor as Chick (voice) |
| Eliana Bendetson as Chick (voice) |
 | Paul Butcher as Chick (voice) |
 | Khamani Griffin as Chick (voice) |
| Arlo Levin as Chick (voice) |
 | Liliana Mumy as Chick (voice) |
| Cydney Neal as Chick (voice) |
| Cate Ozawa as Chick (voice) |
| Isaiah Tefilo as Chick (voice) |
| Georgia Van Newkirk as Chick (voice) |
| Joni Allen as Singer (voice) |
 | Leigh French as Additional Barnyard Voices (voice) |
| William Calvert as Additional Barnyard Voices (voice) |
 | Julianne Buescher as Additional Barnyard Voices (voice) |
 | Nicholas Guest as Additional Barnyard Voices (voice) |
 | Audrey Wasilewski as Additional Barnyard Voices (voice) |
 | Phil Proctor as Additional Barnyard Voices (voice) |
 | Archie Hahn as Additional Barnyard Voices (voice) |
 | Chad Einbinder as Additional Barnyard Voices (voice) |
| Keith Anthony as Additional Barnyard Voices (voice) |
| Claudette Wells as Additional Barnyard Voices (voice) |
 | Lynne Marie Stewart as Additional Barnyard Voices (voice) |
| Christie Mellor as Additional Barnyard Voices (voice) |
 | Justin Shenkarow as Additional Barnyard Voices (voice) |
 | Jacqueline Pinol as Additional Barnyard Voices (voice) |
 | Nika Futterman as Additional Barnyard Voices (voice) |
| Eddie Frierson as Additional Barnyard Voices (voice) |
 | Shaggy as Biggie Cheese (voice) (uncredited) |
| Production | |
| Curtis A. Koller | Casting |
| Pam Marsden | Producer |
| Andrew Egiziano | Associate Producer |
| Nicholisa Contis | Associate Producer |
| Mark Beam | Associate Producer |
| A.K. Madhavan | Executive Producer |
Sound | |
| Yann Delpuech | Sound Effects Editor |
Visual Effects | |
| Steve Baker | Animation Supervisor |
Sound | |
| Odin Benitez | Sound Designer |
| Anand Pawar | Dialogue Editor |
| Philip Rogers | ADR Recordist |
| James Wright | Dolby Consultant |
| Jeff Gomillion | ADR Mixer |
Lighting | |
| Patrick Beauchamp | Lighting Artist |
Visual Effects | |
| Rosie Galvin | Visual Effects Coordinator |
Production | |
| Mike Bodkin | Production Coordinator |
Editing | |
| Christine Dougherty | Digital Intermediate Producer |
Sound | |
| Linda Lew | Foley Editor |
| G.W. Brown | ADR Editor |
| Michael Hilkene | Supervising Sound Editor |
Lighting | |
| Charlie Winter | Lighting Supervisor |
Sound | |
| William Jacobs | Sound Editor |
Production | |
| Leslie Barker | Production Manager |
| Kyle Morgan | Art Department Production Assistant |
Sound | |
| Devon Bowman | Production Sound Mixer |
Art | |
| Asako Miyamori | Set Dresser |
Production | |
| Ramsey Ann Naito | Executive In Charge Of Production |
Art | |
| Glenn Curry | Storyboard Artist |
Sound | |
| Robin Harlan | Foley Artist |
Visual Effects | |
| Steve Kolbe | Layout Supervisor |
| Joaquin Pecheur | Digital Compositor |
Crew | |
| Steven Clay Hunter | Supervising Animator |
Sound | |
| Gabriel Guy | Sound Mix Technician |
Crew | |
| Tom Capizzi | CG Supervisor |
Sound | |
| Ryan Maguire | Foley Mixer |
Crew | |
| Karyn Rachtman | Executive Music Producer |
Editing | |
| Mark Dinicola | Digital Intermediate Colorist |
| Dale E. Grahn | Color Timer |
Sound | |
| Jeff Carson | Music Editor |
| Pernell L. Salinas | First Assistant Sound Editor |
Visual Effects | |
| Johann Quéré | Visual Effects |
Sound | |
| Mark Berrow | Musician |
| John Debney | Conductor |
Visual Effects | |
| Martin Lauzon | Visual Effects Supervisor |
Editing | |
| Danik Thomas | Assistant Editor |
Visual Effects | |
| Mark Beam | Character Designer |
Editing | |
| Matt Voges | Editorial Coordinator |
Visual Effects | |
| Dominique Monfery | Animation Director |
| Bharat Waskar | Matte Painter |
| Zachary J. Rose | Animation Production Assistant |
Editing | |
| Margaret Johnson-Holzendorf | Associate Editor |
Sound | |
| Leo Josefsson | Music Producer |
Lighting | |
| Annick Harmel-Tourneur | Rigging Supervisor |
Sound | |
| Brad Dechter | Orchestrator |
| Angela Reid | Music Coordinator |
Lighting | |
| Mel Rapster | Lighting Production Assistant |
Production | |
| Steven C. Butwell | Production Assistant |
Crew | |
| Sydney S Matthews | Production Intern |
Directing | |
| Kristine Familletti | Script Supervisor |
Production | |
| Sonia Meza-Leon | First Assistant Accountant |
Directing | |
| Steve Oedekerk | Director |
Production | |
| Aaron Parry | Executive Producer |
| Julia Pistor | Executive Producer |
Art | |
| Philip A. Cruden | Production Design |
Production | |
| Steve Oedekerk | Producer |
Art | |
| Philip A. Cruden | Art Direction |
Sound | |
| John Debney | Original Music Composer |
Editing | |
| Paul D. Calder | Editor |
Visual Effects | |
| Todd Grimes | Character Modelling Supervisor |
Art | |
| Bill Schwab | Art Department Manager |
Crew | |
| Rick Moser | Compositors |
Visual Effects | |
| Eric Oliver | Animation |
Crew | |
| Leonard F.W. Green | Special Effects |
Directing | |
| Ivaylo Anguelov | Layout |
Visual Effects | |
| Andre Medina | Animation |
Sound | |
| Kevin Kaska | Orchestrator |
Editing | |
| Billy Weber | Editor |
Writing | |
| Steve Oedekerk | Writer |
Production | |
| Paul Marshal | Producer |
Visual Effects | |
| Thomas Judd | Animation |
