Robert Plant is a plant that belongs to Obfusco. Robert Plant comes with a thick instruction manual on the proper way to care for him. Obfusco left it with Olive and Otto while he was on vacation, and Olive over-watered it, leading to the overgrowth of the plant inside HQ. His brothers are named Jimmy, John, and John Paul.
- Robert Plant, Jimmy, John, and John Paul's names are a reference to the band Led Zeppelin