Lacey Chabert
Eliza Thornberry (voice)
Jodi Carlisle
Marianne Thornberry (voice)
Tim Curry
Nigel Thornberry (voice)
Flea
Donnie Thornberry (voice)
Danielle Harris
Debbie Thornberry (voice)
Tom Kane
Darwin (voice)
David Gallagher
Ben (voice)
Alyson Hannigan
Gerda (voice)
Adrienne Frantz
Inga (voice)
Beau Bridges
Hayden Adams (voice)
Chad Lowe
Buck the Ibex (voice)
Brad Rowe
Big Ibex (voice)
Steve Van Wormer
Jason (voice)
Cathy Malkasian
Director
David Regal
Writer
Robin Riordan
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