"Isaac \"Zak\" Silver"@en . . "Isaac \"Zak\" Silver is a supporting character in the independent comic El Muerto: The Aztec Zombie created by Javier Hernandez.Zak is the best friend to Diego de la Muerte, who dies in a car accident and becomes the undead hero, El Muerto. Zak was crushed to hear of his death."@en . "Zak Silver"@en .