Cast
English voices
- Frank Welker - Garfield, Eddie Gourmand, Cleaning Robot, Evil Space Lasagnas, T-3000, Paddy, Additional Voices
- Gregg Berger - Odie, Squeak, Harry, Herman Post, Mama Meany, Omar the Genie, Additional Voices
- Wally Wingert - Jon Arbuckle, Al the Dog Catcher, Hercules, Additional Voices
- Jason Marsden - Nermal, Vito, Liz's Father, Pete the Dog Catcher, Professor Bonkers, Additional Voices
- Julie Payne - Dr. Liz Wilson, Liz's Mother, Mom Arbuckle
- Laura Summer - Drusilla & Minerva the Twins, Additional Voices
- Audrey Wasilewski - Arlene, Gloria, Newscaster
Additional voices
- Joe Alaskey -
- Bob Bergen -
- Corey Burton -
- Frank Buxton -
- Grey DeLisle - Jack, Nathan (2nd voice), Nathan's Mother
- Melissa Disney - Nathan (1st voice)
- Bill Farmer -
- Frank Ferrante - Lyman
- June Foray - Mrs. Cauldron
- Stan Freberg - Dr. Whipple, Fluffykins, Mole, Spencer Spendington
- Brooks Gardner -
- Hank Garrett -
- Mark Hamill - Master Control
- Laraine Newman - Aunt Ivy, News Anchorwoman, Winona, Angelica
- Maurice LaMarche - Samuel W. Underburger
- Phil LaMarr -
- David Lander - Doc Boy Arbuckle
- Misty Lee - Angie, Scheherazade
- Tress MacNeille - Esmeralda Brubaker, Female Squirrel
- Rose Marie -
- Diane Michelle -
- Candi Milo - Lester, Chester, Reporter
- Chuck McCann - Mayor Graffton
- Marvin Kaplan - Hiram "Hi" Pressure
- Jack Riley - Ghost Cat, Mr. Allwork
- Neil Ross - King Glorm, Tyler Edge, Brandon Scoop
- Jewel Shepard -
- Susan Silo - Neferkitty
- Fred Tatasciore - Dirk Dinkum, Biff
- Scott Whyte -
- April Winchell -