As an occasional photo double, stand-in, and hand model for Will Ferrell, Karl's hands have appeared in "The Lego Movie", squeezing the tubes of Kragle, and smashing the Legos. His hands were also seen opening the glove compartment in a 2016 Dodge Commercial featuring Mr. Ferrell.
Karl, at one time, taught classes in the identification and use of Wild Edible Plants, and still savors the occasional trail nibble. His favorite California treat is Miner's Lettuce with a scoop of Hollywood Berries.
