He's stoic, dedicated and mostly quiet. He has sense of humor nevertheless. He knows how to fight, strong willed and willing to give in everything in order to fulfill his mision. Caring, and always knowing when to shut up. He's often depicted as resourceful, skilled in combat, and determined to confront the bio-terror threats plaguing the world. Leon's character is characterized by his integrity, quick thinking, and willingness to put himself in harm's way to protect others.