Who? Edit Headmaster, in season 3 was spotted in Call Backs. Other tid-bits to know.... Edit He....spanks people? Headmaster is the trauma of ignorance. Often seen in a classroom type setting or carrying a ruler. He wears the hippo mask. Retrieved from "https://nf-corkboard.fandom.com/wiki/Headmaster?oldid=287" Categories: Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.