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The Astronaut Ghost was the disguise of Simon Simonson, a scientist.

Physical appearance

It's an astronaut dressed like a cowboy.


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A Pup Named Scooby-Doo

Season three

Simon Simonson unmasked

Simon Simonson unmasked.

He wanted revenge because his experiment didn't get to go into space, but Velma Dinkley's did. So he dressed up as the ghost to disrupt the mission by 'haunting' the space center. (Dawn of the Spooky Shuttle Scare)


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