Physiology
Karl appears as a human with brown hair, light skin, and light brown eyes. He wears a multi-colored hoodie with a teal spiraling swirl, black pants, and purple shoes. However, as of recent, his hoodie and eyes seem to be changing colors due to his time traveling.

During The Village That Went Mad, Karl wore a puffy multi-colored jacket with a pocket watch and goggles. During The Beach Episode, Karl wore a button-down multi-colored shirt with flower designs, purple sandals, and sunglas