| John Goodman | .... | Sullivan (Stimme) |
| Billy Crystal | .... | Mike (Stimme) |
| Mary Gibbs | .... | Boo (Stimme) |
| Steve Buscemi | .... | Randall (Stimme) |
| James Coburn | .... | Waternoose (Stimme) |
| Jennifer Tilly | .... | Celia (Stimme) |
| Bob Peterson | .... | Roz (Stimme) |
| John Ratzenberger | .... | Yeti (Stimme) |
| Frank Oz | .... | Fungus (Stimme) |
| Daniel Gerson | .... | Needleman & Smitty (Stimme) |
| Steve Susskind | .... | Floor Manager (Stimme) |
| Bonnie Hunt | .... | Flint (Stimme) |
| Jeff Pidgeon | .... | Bile (Stimme) |
| Sam Black | .... | George (Stimme) |
| Jack Angel | .... | Additional Voice (Stimme) |
| Bob Bergen | .... | Additional Voice (Stimme) |
| Rodger Bumpass | .... | Additional Voice (Stimme) |
| Gino Conforti | .... | Additional Voice (Stimme) |
| Jennifer Darling | .... | Additional Voice (Stimme) |
| Patti Deutsch | .... | Additional Voice (Stimme) |
| Pete Docter | .... | Additional Voice (Stimme) |
| Bobby Edner | .... | Additional Voice (Stimme) |
| Ashley Edner | .... | Additional Voice (Stimme) |
| Paul Eiding | .... | Additional Voice (Stimme) |
| Katie Evans | .... | Additional Voice (Stimme) |
| Bill Farmer | .... | Additional Voice (Stimme) |
| Keegan Farrell | .... | Additional Voice (Stimme) |
| Pat Fraley | .... | Additional Voice (Stimme) |
| Terese Ganzel | .... | Additional Voice (Stimme) |
| Taylor Gifaldi | .... | Additional Voice (Stimme) |
| Marc John Jefferies | .... | Additional Voice (Stimme) |
| Joe Lala | .... | Additional Voice (Stimme) |
| Noah Luke | .... | Additional Voice (Stimme) |
| Sherry Lynn | .... | Additional Voice (Stimme) |
| Danny Mann | .... | Additional Voice (Stimme) |
| Mona Marshall | .... | Additional Voice (Stimme) |
| Mickie McGowan | .... | Additional Voice (Stimme) |
| Laraine Newman | .... | Additional Voice (Stimme) |
| Kay Panabaker | .... | Additional Voice (Stimme) |
| Bret Parker | .... | Additional Voice (Stimme) |
| Phil Proctor | .... | Additional Voice (Stimme) |
| Josh Qualtieri | .... | Additional Voice (Stimme) |
| Guido Quaroni | .... | Additional Voice (Stimme) |
| Jan Rabson | .... | Additional Voice (Stimme) |
| Lisa Raggio | .... | Additional Voice (Stimme) |
| Joe Ranft | .... | Additional Voice (Stimme) |
| Sophia Ranft | .... | Additional Voice (Stimme) |
| Katherine Ringgold | .... | Additional Voice (Stimme) |
| Bob Scott | .... | Additional Voice (Stimme) |
| David Silverman | .... | Additional Voice (Stimme) |
| Jim Thornton | .... | Additional Voice (Stimme) |
| Lee Unkrich | .... | Additional Voice (Stimme) |
| Wallace Shawn | .... | Rex (uncredited, Stimme) |