Livio the Double Fang is a childhood friend of Wolfwood and the final member of the Gung-Ho Guns from the Eye of Michael. He wields the Double Fangs, two small cross-shaped machine guns strapped on his arms that fire from both ends.
His body has been enhanced through increased metabolic rate, allowing him to recover from near fatal wounds in a matter of seconds. He grows up in the same orphanage as Wolfwood, having the nickname, "Livio the Crybaby". Razlo the Tri-Punisher of Death is a violent and psychotic split personality, treated as another member of the Gung-Ho Guns. Razlo is created to take all of the abuse given by Livio's father, allowing Livio to not know about it. Razlo only appears after Livio has suffered intense pain or violence, and often commits act of violence, such as killing Livio's parents. He uses three Punishers, the same gun as Wolfwood owns, with the aid of a bionic arm. He is aided by three servants who carry his Punishers while Livio's persona is active.
The two fight with Wolfwood and they are defeated, though Wolfwood dies after sustaining immense injuries while overdosing himself on the regeneration drug. In the aftermath of the fight Livio comes to terms with Razlo's existence stating that he is now strong enough to face life on his own without the questionable help of his psychotic personality, who recedes in the back of his mind. Vash decides to forgive Livio afterward, and he becomes Vash's partner in an act of redemption, seeking to live as Wolfwood would have. Livio fights against Elendira. Unable to win himself, Livio allows Razlo to awake and help him kill the Crimsonnail, by utilizing Razlo's faster reflexes and better eye sight. Livio later lives together with the children in his old orphanage and is shown paying his respects to Wolfwood's gravestone.
