Jeff (Trading Chases)

Jeff was a museum tour guide. He seemingly quit after Professor Salazar had been caught and her scheme revealed, as he unexpectedly revealed he was a lunatic with extreme paranoia, investigating his own irrational conspiracy theories.

Physical appearance
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Personality
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Be Cool, Scooby-Doo!
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Appearances

 * Be Cool, Scooby-Doo!
 * 106. Trading Chases