Glenn Leopold
Sceneggiatura:
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1. I pronipoti (1962), serie...(story)
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2. Scooby e Scrappy Doo (1979), serie...(writer)
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3. The New Fred and Barney (1979), serie...(story)
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4. Rosemary's Killer (1981), film
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5. I puffi (1981), serie...(story)
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...(script)
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7. Scooby e Scrappy Show (1983), serie...(story)
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8. Lucky Luke (1983), serie
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9. Gli Snorky (1984), serie...(based on an original story by) (uncredited)
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10. Scooby-Doo e i 13 fantasmi (1985), serie...(story by)
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12. The Twelve Days of Christmas (1993), film
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13. Scooby-Doo e i misteri d'oriente (1994), film...(additional script material)
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...(written by)
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15. The Book of Virtues (1996), serie
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16. Disney's Doug (1996), serie
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17. Scooby-Doo: l'isola degli zombie (1998), film...(story by)
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18. Sabrina (1999), serie
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19. Scooby-Doo e gli invasori alieni (2000), film...(story by)
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20. King Kong (2000), serie
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21. Ultimate Book of Spells (2001), serie...(writer)
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22. Legend of the Dragon (2005), serie
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23. Biker Mice from Mars (2006), serie...(writer)
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24. Dork Hunters from Outer Space (2008), serie
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25. Pac-Man e le avventure mostruose (2013), film
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26. Pac-Man e le avventure mostruose (2013), serie
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...(based on an original story by) (uncredited)