Legato was recruited by Knives after the July incident to make Vash's life a living hell, though the nightmare doesn't really begin until about midway through the series. From that point on, this man continues to weave a living nightmare for Vash, not only on his own but also through the gang of eleven superpowered killers who are under his command: the Gung-Ho Guns.
Legato himself possesses a dark power: the ability to control people's bodies against their will.
