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Ryan W. Mead on Twitter: "1979 Hanna-Barbera print ad honoring Scooby-Doo and voice cast on his 10th anniversary. 40 years later, they're still going strong under the tutelage of Frank Welker, Matthew
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How Voice Actor Frank Welker Created Voice Of Scooby-Doo's Fred, Garfield & More | PeopleTV - YouTube
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