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Blair Underwood as Gregory Fletcher (voice) |
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Sanaa Lathan as Monica (voice) |
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Michael Clarke Duncan as Thomas Tatum (voice) |
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Neil Patrick Harris as The Comic Shop Owner (voice) |
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Khleo Thomas as Jason / Sure Shot (voice) |
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Rickey D'Shon Collins as Leon (voice) |
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Kym Whitley as Mother Johnson (voice) |
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James C. Mathis III as Comic Narrator / Diner / Astronaut 1 / Red Car Guy / Clerk / Camera Man(voice) |
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Nick Jameson as Principal / Scientist (voice) |
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Vanessa Marshall as Honohan / Pharmacist Mom / Cindy / TV News Anchor / Goon Boy 1 (voice) |
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Quinton Flynn as French Waiter / Kid 3 / Goon Boy 2 (voice) |
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Leon Lozano as Motorcycle Thug (voice) |
| Directing | Bryon E. Carson | Director |
| Writing | Archie Gips | Screenplay |
| Sound | Joseph Williams | Original Music Composer |
