Seth Pallares

Seth also known as Cyborg 0018 is the final member of the High-Teen Number Cyborgs created by Dr. Adams. He is the younger fraternal twin brother of Eva Maria Pallares as well as the host of the demon Atun. He (as well as his and Atun's fusion Azazel) serves as the final obstacle in the OVA Cyborg 009 vs. Devilman. Before his conversion, Seth was gentle and soft-spoken who was fond of his older sister Eva, often having to rely on her. After the merger with Atun, the newly fused Seth/Atun hybrid was homicidal, willing to kill anyone in his path. He also became turned against his sister, becoming murderous towards her, with no qualms in injuring anyone in whatever way he could to gain the upper-hand.