Kelly Connell played Norman Pfister, an assassin made of thousands of morphable worms, on
Buffy the Vampire Slayer. Later in his career, he had a small role as a tourist who is one of several that gets chased by one of the "graboid"s in the movie
Tremors 3: Back to Perfection (2001)- He went from playing a man made of worms to playing one being chased by a giant worm!