Mr. Nobody

Mr. Nobody was a child-like alien intelligence inhabiting a cave on Priplanus near the Jupiter 2. He was befriended by Penny and gradually formed a deep attachment to her. When Penny was left unconscious after an explosion, he believed she was dead and went on a destructive rampage toward the Jupiter 2. Only Penny's return to the camp in time saved the Robinsons from destruction. With Penny's help, he matured and left the planet for outer space, on the cusp of developing into some new and unknown form of life..