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Miley Cyrus as Penny (voice) |
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Mark Walton as Rhino (voice) |
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Susie Essman as Mittens (voice) |
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Malcolm McDowell as Dr. Calico (voice) |
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Dara McGarry as (voice) |
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Randy Poffo as Thug (voice) |
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Sean Donnellan as Penny's TV Dad (voice) |
| Production | Byron Howard | Executive Producer |
| Production | Chris Williams | Executive Producer |
| Editing | Shannon Stein | Editor |
| Directing | Nathan Greno | Director |
| Sound | John Powell | Original Music Composer |
| Writing | Nathan Greno | Writer |
| Production | Makul Wigert | Producer |
| Production | Clark Spencer | Producer |
| Production | John Lasseter | Executive Producer |
