Karl Castle

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Karl Castle
Karl Castle
Vital Statistics
Species Human
Gender Male
Hair color White
Eye color Black
Other Statistics
Occupation Radio actor (incarcerated)
Affiliation Terri Grass
Production Details
First appearance SD! (DC Comics):


Karl Castle is a radio personality on National People's Radio.

Physical appearance

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Scooby-Doo! (DC Comics)

He shared Terri Grass' hatred of Car Chat and helped her run a broadcasting truck to harass it and try to get it off the air. He ran off when she was caught as the Phantom of the Air. (Car-Tastrophe)



  • His name is a parody of a real NPR radio personality, Carl Kassel, who appears on the show Wait Wait... Don't Tell Me!.

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