Mark Proksch

Mark Proksch ( ''''; born ) is an American comedian and character actor. He is best known for acting in the television series ''The Office'', ''Better Call Saul'', ''Dream Corp LLC'', ''What We Do in the Shadows'' and as a fictionalized version of himself in the ''On Cinema'' universe.

He rose to prominence when he portrayed the character "K-Strass", a parody of a yo-yo master, who appeared on local news shows. Provided by Wikipedia