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Steve Coogan as Campbell Babbitt |
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Hilary Duff as Lucy Diamond |
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Olivia Thirlby as Tess Sullivan |
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Josh Peck as Jim Lement |
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Molly Shannon as Penelope Little |
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Brett Kelly as Blastoff! Chorus |
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Molly Price as Donna Arbetter |
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Max Hoffman as Fenster Itski |
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Sarah Lind as Peggy Popoladopolous |
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Laura Carswell as Lute Lement |
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Ingrid Nilson as Ann |
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Andrea Brooks as Sue |
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Andrew Wheeler as Principal Person |
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Gabrielle Rose as Mrs. Bridigan |
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Colleen Rennison as Sylvia |
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Aubrey Mozino as Blyth |
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Alexia Fast as Hannah (uncredited) |
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Kendra Waldman as Dusty Drake |
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Aaron Brooks as Ezra |
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Barry Greene as Sam Calalluci |
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Levi Sochet as Sam Calalluci (voice) |
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Katie Messina as Gina |
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Alana Husband as Angela |
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Barbara Greenbaum as Librarian |
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Brenna O'Brien as Diminutive Girl |
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Aiden Lane Robson as Gustave Person |
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David Allan Pearson as Grease Monkey |
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Jilena Cori as Mrs. Person |
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Patricia Drake as Mrs. Itski |
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Ashley Whillans as Blastoff! Chorus |
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Calum Worthy as Blastoff! Chorus |
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Advah Soudack as Blastoff! Chorus |
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Robin Eder-Warren as Blastoff! Chorus |
| Writing | Jonathan Glatzer | Writer |
| Directing | Jonathan Glatzer | Director |
| Writing | Robert C. Lawson | Writer |
| Visual Effects | Douglas Kerr | VFX Artist |
| Sound | Hilary Duff | Songs |
| Production | Jonathan Glatzer | Producer |
