Headmaster (or Head Master) is the administrator of Tower Prep. His real name is unknown; like the teachers at the school, he is known only by his job title.
Headmaster is a stern and intelligent leader who claims that his school is dedicated to the development of students with unique potential through his "Program." Headmaster watches the entire campus through Whisper 119's security camera network and directly commands his monitors, who enforce the rules. He also refers to the Gnomes as guardians, although it's not yet clear how much control he has over them, or what their real purpose is.