Lykantos

A millennia-old demon known to be the father of werewolves.
"David turned to see the sea of wolves parting as a tall man strode into the square.
Everything about the man seemed feral. He must have been over six feet tall, with wild black hair and yellow eyes that seemed to glow. He wore nothing but a loincloth made of animal furs, and necklaces of bones and teeth cascaded over his tanned, muscled torso. Bone bracelets wrapped around his wrists and ankles, and his fingers ended in sharp black claws."
Lykantos is feral and savage with very little regard for the lives of others.