Cast & Crew zu In tierischer Mission
| Mrs. Baker | Molly Shannon | |
| Owen Baker | Liam Aiken | |
| Mr. Baker | Kevin Nealon | |
| Connie Fleming | Brittany Moldowan | |
| Mr. Leone | George Touliatos | |
| Ms. Ryan | Patti Allan | |
| Frankie (as Hunter Elliot) | Hunter Elliott | |
| Fred | Mikhael Speidel | |
| Wilson's Dad | Benjamin Ratner | |
| Wilson's Other Dad | Peter Flemming | |
| Bob the Dog Catcher | Paul Vogt | |
| Mrs. Fleming | Brenda Crichlow | |
| Mr. Fleming | D. Harlan Cutshall | |
| Woman at the Pound | Chaka White | |
| Woman at the Pound | Nicola Anderson | |
| TV Anchorman | Ted Friend | |
| House Bidder | Susan Bain | |
| Hubble (Stimme) | Matthew Broderick | |
| Barbara Ann (Stimme) | Delta Burke | |
| Wilson (Stimme) | Donald Faison | |
| The Greater Dane's Henchman (Stimme) | Cheech Marin | |
| Nelly (Stimme) | Brittany Murphy | |
| The Greater Dane (Stimme) | Vanessa Redgrave | |
| Shep (Stimme) | Carl Reiner | |
| Regie |
John Robert Hoffman |
|
| Buch |
Zeke Richardson |
|
| Drehbuch |
John Hoffman |
|
| Kamera |
James Glenno |
|
| Schnitt |
Craig Herring |
|
| Musik |
Mark Mothersbaugh |
|