Livio the Double Fang is a prominent character from the manga and anime series Trigun. Originally introduced as an assassin for the Eye of Michael organization, Livio is known for his dual personalities and exceptional gunfighting skills. He possesses an imposing presence and is a formidable opponent, often going up against main characters such as Nicholas D. Wolfwood. Livio's internal struggle with his darker side and his search for redemption make him a complex and compelling figure within the series.