John is the personification of the Titans Tower bathroom. After his home planet was destroyed, John found refuge on Earth, but after witnessing the abuse of bathroom magic by Robin, he and the other bathrooms left Earth to parts unknown.
After the destruction of his home planet, John and his species traveled to Earth where they were accepted by humans due to them finding a use for them as bathrooms. Over time, humans forgot about their existence until John, disgusted by Robin's abuse of bathroom magic, unveiled himself to the Teen Titans. He explained his origin and revealed to them his plans to take his species and leave Earth as a result of Robin's actions. John detached himself from Titans Tower and all bathrooms soon followed suit before disappearing in a flash of light above Earth.