Akihiko Sanada is a central character in Persona 3, serving as a senior member and one of the founding members of the Specialized Extracurricular Execution Squad (SEES). He is known for his stoic demeanor, strong sense of responsibility, and dedication to boxing and self-improvement. Akihiko acts as a mentor and guide to the protagonist and other SEES members, providing inspiration and tactical support during battles against Shadows. His personal journey involves overcoming past trauma and developing deeper bonds with his friends.