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Ross Bagdasarian, Jr. as David Seville / Alvin Seville / Simon Seville (voice) |
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Janice Karman as Theodore / Brittany / Jeanette / Eleanor (voice) |
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Dody Goodman as Miss Rebecca Miller (voice) |
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Susan Tyrrell as Claudia Furschtien (voice) |
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Anthony De Longis as Klaus Furschtien (voice) |
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Frank Welker as Sophie / Native Chief / Baby Penguin / Additional Voices (voice) |
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Nancy Cartwright as Arabian Prince (voice) |
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Philip L. Clarke as Additional Voices (voice) |
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Ken Sansom as Inspector Jamal (voice) |
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George Poulos as Additional Voices (voice) |
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Charlie Adler as Additional Voices (voice) |
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Patrick Pinney as Additional Voices (voice) |
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Jack Angel as Additional Voices (voice; uncredited) |
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Mel Blanc as Additional Voices (voice; uncredited) |
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Laura Summer as Additional Voices (voice; uncredited) |
| Directing | Janice Karman | Director |
| Visual Effects | Alan Smart | Animation |
| Visual Effects | Tim Allen | Animation |
| Visual Effects | Al Holter | Animation |
| Visual Effects | John Williamson | Animation |
| Visual Effects | Rob Bekuhrs | Visual Effects |
| Production | Ross Bagdasarian, Jr. | Producer |
| Writing | Janice Karman | Writer |
| Writing | Ross Bagdasarian, Jr. | Writer |
| Writing | Ross Bagdasarian | Characters |
| Sound | Randy Edelman | Original Music Composer |
| Sound | Donald W. Ernst | Supervising Sound Editor |
| Sound | Greg P. Russell | Sound Re-Recording Mixer |
| Production | Michael Wolf | Production Manager |
| Sound | Jeffrey J. Haboush | Sound Re-Recording Mixer |
| Production | Rocky Solotoff | Production Supervisor |
| Sound | Cecil Broughton | Sound Editor |
| Editing | Greg Griffin | Assistant Editor |
| Sound | Sam Horta | Sound Editor |
| Sound | Douglas M. Lackey | Music Editor |
| Sound | Gary Krivacek | Sound Editor |
| Sound | Rick Riccobono | Music Supervisor |
| Sound | Scott D. Jackson | Sound Editor |
| Sound | Howard Pfeifer | Music Arranger |
| Sound | Ralph Ferraro | Orchestrator |
| Sound | Rob Matheny | Music Supervisor |
| Production | Patty Burns | Production Coordinator |
| Production | Hope London | Production Executive |
| Editing | Tony Mizgalski | Editor |
| Production | Sue Shakespeare | Associate Producer |
| Production | Louise Zingarelli | Casting |
| Art | Andrew Gaskill | Title Designer |
| Production | Roxy Steven | Production Coordinator |
| Crew | Ollie Johnston | Thanks |
| Production | Steven Hahn | Co-Producer |
| Crew | Frank Thomas | Thanks |
| Art | Carol Holman Grosvenor | Production Design |
| Sound | Randy Edelman | Music Arranger |
| Visual Effects | Louise Zingarelli | Character Designer |
| Visual Effects | Sandra Berez | Character Designer |
| Crew | Don Spencer | Supervising Animator |
| Crew | Skip Jones | Supervising Animator |
| Crew | Andrew Gaskill | Supervising Animator |
| Crew | Mitch Rochon | Supervising Animator |
| Crew | Becky Bristow | Supervising Animator |
| Visual Effects | David Feiss | Animation |
| Visual Effects | Viki Anderson | Animation |
| Visual Effects | Paul Riley | Animation |
| Visual Effects | Dan Haskett | Animation |
| Visual Effects | Louise Zingarelli | Animation |
| Visual Effects | Glen Keane | Animation |
| Visual Effects | David Pruiksma | Animation |
| Visual Effects | J.K. Kim | Animation |
| Visual Effects | John Norton | Animation |
| Visual Effects | Raúl García | Animation |
| Visual Effects | Chuck Harvey | Animation |
| Visual Effects | David Molina | Animation |
| Visual Effects | Rebecca Rees | Animation |
| Visual Effects | Corny Cole | Animation |
| Visual Effects | Tanya T. Wilson | Animation |
| Visual Effects | Jesse Cosio | Animation |
| Visual Effects | Sean Newton | Animation |
| Visual Effects | Ken Boyer | Animation |
| Visual Effects | Susan Kroyer | Animation |
| Visual Effects | Tim Hauser | Animation |
| Art | Dan Haskett | Storyboard Artist |
| Art | Roy Allen Smith | Storyboard Artist |
| Art | Andrew Gaskill | Storyboard Artist |
| Art | Glen Keane | Storyboard Artist |
| Art | John Norton | Storyboard Artist |
| Art | Michael Peraza Jr. | Storyboard Artist |
| Visual Effects | Roy Allen Smith | Layout Supervisor |
| Directing | Andrew Austin | Layout |
| Directing | Gary Graham | Layout |
| Art | Mike Svayko | Prop Designer |
| Visual Effects | Kathleen Quaife-Hodge | Visual Effects Supervisor |
| Visual Effects | Danny Antonucci | Animation |
| Visual Effects | Debra Armstrong | Animation |
| Visual Effects | Terry Shakespeare | Animation |
| Visual Effects | Joe Horne | Animation |
| Visual Effects | Ann Telnaes | Animation |
| Visual Effects | Pat Shinagawa | Animation |
| Sound | Eileen Horta | Foley Artist |
| Sound | Mary Louise Rodgers | Foley Artist |
