Peter makes a playmate out of mud.

Ashley Johnson
Peter Shepherd (voice)

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William Sanderson
Professor J.S. Ibsen (voice)

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Pamela Adlon
Rock (voice)

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Debi Derryberry
Judy Shepherd (voice)

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Sherman Howard
Van Pelt (voice)

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Melanie Chartoff
Aunt Nora Shepherd (voice)

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Bill Fagerbakke
Alan Parrish (voice)

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Billy West
(voice)

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Tim Curry
Trader Slick (voice)

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Danny Mann
Umpire (voice)

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Kevin Schon
Dead-Eye (voice)

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Richard Allen
Tribal Bob (voice)

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