Ben and Esther's younger adopted brother
Despite his advanced age, Abaddon is just as childish as the vessel he inhabits. He is easily distracted, extremely vindictive, and prone to violent mood swings, and takes great delight in the suffering of others. He has no regard for how his actions affect people around him, and willfully ignores any and all rules or restrictions that are placed on him. He is also incredibly narcissistic, believing himself to be superior to humans despite being trapped in a child's body without the majority of his powers. Despite being trapped on Earth for three-hundred years and even being spurned by another demon, Abaddon has unwavering faith that someone from Hell will eventually come to Earth to bring him back home
Talks like a bragging child; sudden rages, then smug, theatrical gloating.
