| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alec Sokolow | Crew | Writing | Screenplay |
Anne D. McCulley | Crew | Art | Set Decoration |
Brian Manis | Crew | Production | Executive Producer |
 Christophe Beck | Crew | Sound | Original Music Composer |
Donald Sylvester | Crew | Sound | Supervising Sound Editor |
Francine Jamison-Tanchuck | Crew | Costume & Make-Up | Costume Design |
Gary Gegan | Crew | Sound | Sound Re-Recording Mixer |
Jake Jacobson | Crew | Production | Unit Production Manager |
 Jim Davis | Crew | Writing | Novel |
 Joel Cohen | Crew | Writing | Screenplay |
 John Davis | Crew | Production | Producer |
Mary Morrisey | Crew | Editing | Assistant Editor |
Matthew Iadarola | Crew | Sound | Sound Re-Recording Mixer |
Matthew Jon Beck | Crew | Production | Casting |
Michele Imperato | Crew | Production | Executive Producer, Unit Production Manager |
 Michele Panelli-Venetis | Crew | Directing | First Assistant Director |
Monica Swann | Crew | Production | Casting |
 Peter Lyons Collister | Crew | Camera | Director of Photography |
 Peter S. Elliot | Crew | Editing | Editor |
 Robert Greenhut | Crew | Crew | Thanks |
 Tim Hill | Crew | Directing | Director |
Tony Burrough | Crew | Art | Production Design |
John Berri | Crew | Crew | Visual Effects Editor |
Bruce Szeles | Crew | Crew | Post Production Supervisor |
Louis M. Mann | Crew | Art | Art Direction |
Julie Socash | Crew | Costume & Make-Up | Makeup Artist |
Jason Solberg | Crew | Editing | First Assistant Editor |
 Bill Murray | Cast | Actor | Garfield (voice) |
 Billy Connolly | Cast | Actor | Dargis |
 Bob Hoskins | Cast | Actor | Winston (voice) |
 Breckin Meyer | Cast | Actor | Jon Arbuckle |
Brian Manis | Cast | Actor | Contractor |
Diz White | Cast | Additional Voice Cast (voice) | |
 Greg Ellis | Cast | Actor | Nigel (voice) |
 Hope Levy | Cast | Actress | Additional Voice Cast (voice) |
 Ian Abercrombie | Cast | Actor | Smithee |
 JB Blanc | Cast | Actor | Hotel Porter |
 Jane Carr | Cast | Actress | Mrs. Whitney |
 Jane Horrocks | Cast | Actress | Meenie (voice) |
 Jane Leeves | Cast | Actress | Eenie (voice) |
 Jean Gilpin | Cast | Actress | Additional Voice Cast (voice) |
 Jennifer Love Hewitt | Cast | Actress | Liz |
 Jim Piddock | Cast | Actor | Bolero (voice) |
 Joe Pasquale | Cast | Actor | I - Claudius (voice) |
 Johnny Gidcomb | Cast | Actor | Additional Voice Cast (voice) |
 Judi Shekoni | Cast | Actress | Tour Guide |
 Justin Shenkarow | Cast | Actor | Additional Voice Cast (voice) |
Kenneth Danziger | Cast | Actor | Additional Voice Cast (voice) |
 Lena Cardwell | Cast | Actress | Teenage Tourist |
 Lucy Davis | Cast | Actress | Abby |
 Mark Sussman | Cast | Actor | Additional Voice Cast (voice) |
 Neil Dickson | Cast | Actor | Additional Voice Cast (voice) |
 Oliver Muirhead | Cast | Actor | Mr. Greene |
 Paula J. Newman | Cast | Actress | Additional Voice Cast (voice) |
 Peter Lavin | Cast | Additional Voice Cast (voice) | |
 Rhys Ifans | Cast | Actor | McBunny (voice) |
 Richard E. Grant | Cast | Actor | Preston (voice) |
 Robin Atkin Downes | Cast | Actor | Additional Voice Cast (voice) |
 Roger Rees | Cast | Actor | Mr. Hobbs |
 Roscoe Lee Browne | Cast | Actor | Narrator |
 Russell Milton | Cast | Actor | Bobby |
 Sharon Osbourne | Cast | Actress | Christophe (voice) |
 Susan Leslie | Cast | Actress | Additional Voice Cast (voice) |
 Tim Curry | Cast | Actor | Prince (voice) |
 Vernee Watson-Johnson | Cast | Actress | Tourist #2 |
 Veronica Alicino | Cast | Actress | Veterinary Assistant |
 Vinnie Jones | Cast | Actor | Rommel (voice) |
 Andy Kreiss | Cast | Actor | Additional Voice Cast (voice) |
 Ben Falcone | Cast | Actor | American Tourist |
 Joe Towne | Cast | Garfield / Prince / Various Animals (archive sound) (uncredited) | |
 Melanie Tolbert | Cast | Actress | Waitress |
 Marie Del Marco | Cast | Actress | Pub Guest (uncredited) |
 David Kallaway | Cast | Actor | Darts Guy |
 Penny Smith | Cast | Actress | Self - Newsreader (archive footage) (uncredited) |
 Bryce Lenon | Cast | Actor | Police Sergeant |
 Martin Tyler | Cast | Announcer (voice) (uncredited) | |
 Ed Pearce | Cast | Corgi Footman (uncredited) | |
| Person | Type | Job | Role(s) |
