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Frank Welker as Garfield / Keith / Prop Boy / Additional Voices (voice) |
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Rajia Baroudi as Sheila / Concertina Girl (voice) |
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Gregg Berger as Odie / Shecky / Hale (voice) |
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Greg Eagles as Eli (voice) |
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Jason Marsden as Nermal (voice) |
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Audrey Wasilewski as Arlene / Zelda / Betty / Ashley (voice) |
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Pat Fraley as Delivery Gnome / Sid (voice) |
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Wally Wingert as Jon Arbuckle / Mike (voice) |
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Neil Ross as Wally / Charles (voice) |
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Jennifer Darling as Bonita / Mother / Rusty / Bobby (voice) |
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David Michie as Tape Holder (voice) |
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Harold Perrineau as Husband (voice) |
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Stephen Stanton as Randy / Father (voice) |
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Fred Tatasciore as Billy / Waldo / Eric (voice) |
| Directing | Mark A.Z. Dippé | Director |
| Writing | Jim Davis | Writer |
| Production | Shannon Makhanian | Casting Director |
| Sound | Kenneth Burgomaster | Original Music Composer |
| Production | Dan Chuba | Producer |
| Production | John Davis | Producer |
| Production | Mark A.Z. Dippé | Producer |
| Production | Youngki Lee | Producer |
| Production | Brian Manis | Producer |
| Production | Ash R. Shah | Producer |
| Production | Jim Davis | Executive Producer |
| Editing | Rob Neal | Editor |
| Production | Laura Warner | Production Coordinator |
| Production | Kel Story | Production Assistant |
| Production | Kim Erin Eunsung | Production Assistant |
| Production | Ryan Kennedy | Production Assistant |
| Production | Tracy Park | Production Assistant |
| Production | Angela Jang | Production Assistant |
| Editing | Aaron Seelman | Assistant Editor |
| Crew | Thad Beier | Other |
| Crew | Fatima Mojaddidy | Other |
| Crew | Cindy Rago | Other |
| Crew | Jim Busfield | Other |
| Crew | Christopher Tipton | Other |
| Art | Glenn Zimmerman | Art Direction |
| Visual Effects | Jim Davis | Character Designer |
| Visual Effects | Glenn Zimmerman | Character Designer |
| Visual Effects | Marvin Porter | Character Designer |
| Visual Effects | Brett Koth | Character Designer |
| Production | Jill Davis | Production Executive |
| Crew | Bob Beasley | Legal Services |
| Production | Alex J. Yoo | Executive Producer |
| Production | Joshua S.H. Sohn | Producer |
| Production | Shaun Sangho Woo | Line Producer |
| Production | Euiryoung Cha | Production Coordinator |
| Production | Hailey Soyoung Park | Production Coordinator |
| Production | Silver Eunyoung Park | Production Coordinator |
| Production | Moon Jihyun | Production Assistant |
| Editing | Brian Park | Editor |
| Production | Eeljin Chae | Human Resources |
| Art | Junghoon Yeon | Art Direction |
| Directing | Kyung Ho Lee | Co-Director |
