Leon (Final Fantasy II)

Leon is one of Firion's allies in Final Fantasy II, but he also serves as a villain throughout the game. At the beginning of the game he is separated from his allies, including his sister Maria, during an attack by Palamecian Knights. He later becomes the Emperor's Dark Knight, and fights against his former allies. After the Emperor is destroyed in the Whirlwind, Leon attempts to crown himself Emperor, but is forced to flee with Firion and Maria after the Emperor returns from the dead in demonic form. Leon later joins forces with Firion, Maria, and Guy to defeat the Emperor at Pandemonium.