Most powerful and dangerous of the Four Knights of Revenge, Shagon is a tall, strong demon wearing a blue metal vest that (like those of his fellow Knights) has Nerissa's seal on it. His long black hair resembles a nest of snakes, giving him a Medusa-like appearance. As a human he worked as a geologist doing research near the mysterious Mount Thanos. While searching for his dog, Miska, he eventually came across Nerissa who wanted a human as "material" for her right-hand man. Shagon represents Nerissa's hatred for Kandrakar and feeds on expressions of hate. His life essence was nearly absorbed by Nerissa in the final battle but he wounded her and reverted back to his original form. Despite the hatred he expresses he did not forget his feelings as a human about the transformed dog Miska.