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Jim Cummings as Mr. Bumpy / Destructo / Doris (voice) |
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Rob Paulsen as Squishington (voice) |
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Gail Matthius as Molly Coddle (voice) |
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Cheech Marin as Juaquin Gusanito Sin Manos (voice) |
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Danny Mann as Phil Silverfish (voice) |
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Valery Pappas as Shane (voice) |
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Jennifer Darling as Sia (voice) |
| Visual Effects | Jerold Howard | Animation Director |
| Art | Norm DeCarlo | Art Direction |
| Writing | Jeremy Cushner | Writer |
| Writing | Mark Zaslove | Story Editor |
| Directing | David Bleiman Ichioka | Director |
| Directing | Ken Pontac | Director |
| Sound | Jim Latham | Original Music Composer |
| Production | Ken Pontac | Executive Producer |
| Production | David Bleiman Ichioka | Executive Producer |
| Production | Patricia Rose Duignan | Executive Producer |
| Production | Denise Nolan Cascino | Co-Executive Producer |
| Production | Mark Zaslove | Co-Producer |
| Visual Effects | Tennessee Reid Norton | Animation |
| Visual Effects | Ethan Marak | Animation |
| Art | Greg Garcia | Storyboard Designer |
| Art | David Skelly | Storyboard Assistant |
| Art | Cathy Carlson | Storyboard Assistant |
| Visual Effects | Christopher Calvi | Animation |
| Visual Effects | Sean Burns | Animation |
| Visual Effects | John Campanaro | Animation |
| Visual Effects | Tom Gibbons | Animation |
| Visual Effects | Todd Kurtzman | Animation |
| Visual Effects | Lisa Mullins | Animation |
| Visual Effects | Randy Link | Animation |
| Visual Effects | Victoria Livingstone | Animation |
| Visual Effects | Blake Martin | Animation |
| Visual Effects | Neil Michka | Animation |
| Visual Effects | Luci Napier | Animation |
| Visual Effects | Brian Ormiston | Animation |
| Visual Effects | Jason Van Orden | Animation |
| Visual Effects | Scott Wirtz | Animation |
| Visual Effects | George Wong | Animation |
| Editing | Edie Ichioka | Editor |
