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Hans Etherwise is a ski instructor, and an undercover police officer.
He is a Caucasian male with blond hair.
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The New Scooby-Doo Movies
He offered to teach Shaggy Rogers and Scooby-Doo. His spooky manner made the gang wonder if he might be the Ghost of Bigfoot. In the end it was revealed that he was actually a police officer gathering evidence on Bigfoot's scheme to sell stolen cars with real plates.