How many movies have Jean Vander Pyl and William Hanna collaborated on?

They have worked on 15 movies together! Their first movie together was Hey There, It's Yogi Bear! (1964) while their highest rated movie together was Scooby-Doo's Creepiest Capers (2000). They have not worked together since Scooby-Doo's Creepiest Capers (2000). They are most known for their comedy films together.

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Mrs. Feldspar
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Executive Producer
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Executive in Boardroom
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Wilma Flintstone (voice)
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Wilma / Mrs. Slate (voice)
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Bill (voice)
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Rosie the Robot (voice)
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Wilma Flintstone / Rosie / Mrs. Spacely (voice)
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Wilma Flintstone / Pebbles Flintstone (voice)
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Maw Rugg / Floral Rugg / Woman (voice)
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Additional Characters (voice)
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