Karl is the owner of a cheese shop in Wisconsin. He is also Fred Jones's uncle and voiced by Pat Fraley.
Physical appearance: Karl is an adult Caucasian male who has a muscular build and short blonde hair. He wears a gray collared sweater with an orange ascot like his nephew.
History: What's New, Scooby-Doo?, Season three: The small Wisconsin town he lived in was losing business because the nearby lighthouse was haunted by the Creepy Keeper.
He provided Mystery Inc. with train tickets to Cyber Gulch.
Appearances: .What's New, Scooby-Doo? 301. Fright House of a Lighthouse