Pilbert P. Caterpillar, often called simply Pilby, is an NPC with a sad expression from the Roblox Regretevator game. They appear as a beige caterpillar with four arms and a greenish-blue outfit, which creates a wonderful contrast between their creamy body and the striking colors of their attire. Besides, Pilby has soft pink hair that hides under their hat with two cute antennas. This gloomy and anxious clown previously lived alongside their family until they wandered onto the elevator and got separated from them, so now Pilbert can be easily frightened by other NPCs whatever they do. A fanart Roblox Regretevator cursor with Pilbert P. Caterpillar aka Pilby.