Within the walled city portrayed in *Memories: Cannon Fodder*, the Teacher functions solely within its educational system. This character instructs young students, including the central schoolboy, exclusively on topics related to the city's cannons and warfare. Lessons deliver detailed technical explanations covering cannon mechanics, such as barrel pressure, loading procedures, and trajectory calculations. This curriculum mirrors the adult workforce's duties and reinforces the city's singular focus on artillery operations.

No personal name, background, or physical description for the Teacher is given. The character exhibits no individual personality traits or development. The Teacher serves as the state's indoctrination mechanism, ensuring children internalize their future roles in the militarized society. Classroom scenes show students being taught to idolize cannon officers and uncritically accept propaganda about an unseen enemy.

Instruction occurs in a school environment visually dominated by cannon imagery, including diagrams and models. Pedagogical methods emphasize rote learning and technical precision, directly preparing students for future assignments in cannon maintenance or operation. The Teacher expresses no dissent or alternative viewpoints concerning the city's perpetual war footing or the absence of verified enemy threats.

The character's depiction is confined entirely to the original short film. The Teacher's role remains strictly that of facilitating the city's cycle of militaristic indoctrination through standardized education.